WO2021109776A1 - Module optique - Google Patents

Module optique Download PDF

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Publication number
WO2021109776A1
WO2021109776A1 PCT/CN2020/126300 CN2020126300W WO2021109776A1 WO 2021109776 A1 WO2021109776 A1 WO 2021109776A1 CN 2020126300 W CN2020126300 W CN 2020126300W WO 2021109776 A1 WO2021109776 A1 WO 2021109776A1
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WO
WIPO (PCT)
Prior art keywords
optical
lens
light
lens matrix
optical fiber
Prior art date
Application number
PCT/CN2020/126300
Other languages
English (en)
Chinese (zh)
Inventor
杨思更
姜双弟
刘旭霞
Original Assignee
青岛海信宽带多媒体技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 青岛海信宽带多媒体技术有限公司 filed Critical 青岛海信宽带多媒体技术有限公司
Publication of WO2021109776A1 publication Critical patent/WO2021109776A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4286—Optical modules with optical power monitoring

Definitions

  • the present disclosure relates to the field of optical communication technology, and in particular to an optical module.
  • the optical module is mainly used for photoelectric and electro-optical conversion.
  • the transmitting end converts the electrical signal into an optical signal and transmits it through the optical fiber, and the receiving end converts the received optical signal into an electrical signal.
  • the packaging forms of optical modules mainly include TO (Transistor-Outline, coaxial) packaging and COB (Chip on Board) packaging.
  • the optical transmitter and the optical receiver are respectively mounted on the circuit board, the lens assembly is covered on the optical transmitter and the optical receiver, the lens assembly is connected to the optical fiber, and the optical signal emitted by the optical transmitter passes through the lens assembly After changing the direction, the optical signal is transmitted to the optical fiber, the optical signal is transmitted to the lens assembly through the optical fiber, and the optical signal is transmitted to the optical receiver after changing the direction through the lens assembly.
  • the embodiment of the present disclosure provides an optical module, which mainly includes: a circuit board; an optical transmitter, which is arranged on the circuit board, and is used to emit light signals; a light detector, which is arranged on the circuit board, and is used to receive the light emitted by the optical transmitter Part of the optical signal; optical receiver, set on the circuit board, used to receive the optical signal from the outside of the optical module; lens assembly, set on the optical transmitter, photodetector and optical receiver, change the propagation direction of the signal beam
  • the optical fiber ribbon is used to connect the lens assembly; wherein the top surface of the lens assembly includes a first recessed portion and a second recessed portion, the bottom surface of the lens assembly is provided with a first lens matrix and a second lens matrix, and the side surface of the lens assembly includes a third Depressed portion; the bottom surface of the second recessed portion forms a first reflective surface, the first reflective surface is used to reflect the light beam from the outside of the optical module to the first reflective surface; the first lens matrix is used to converge the light beam
  • a mirror-reflected light beam; a third lens matrix is provided on the end surface of the third recessed portion, and the third lens matrix is used to converge the light beam refracted by the third oblique surface to the optical fiber ribbon and converge and transmit the light beam from the optical fiber ribbon to the first reflecting surface .
  • the embodiments of the present disclosure also provide an optical module, including a circuit board; an optical transmitter, which is arranged on the circuit board, and is used for transmitting optical signals; an optical receiver, which is arranged on the circuit board, and is used for receiving light from outside the optical module.
  • the lens assembly which is covered on the light transmitter and the light receiver, changes the propagation direction of the signal beam;
  • the optical fiber ribbon is used to connect the lens assembly; wherein the top surface of the lens assembly includes a first recess, and the bottom surface of the lens assembly is set The first lens matrix and the second lens matrix, the side surface of the lens assembly includes a third recessed portion; the bottom surface of the first recessed portion forms a second reflective surface, the second reflective surface is used to reflect from the outside of the optical module to the second reflective surface The light beam and the light beam propagated from the light emitter to the second reflective surface; the first lens matrix is used to converge the light beam emitted by the light emitter, and the second lens matrix is used to converge the light beam reflected by the second reflective surface to the light receiver; third A third lens matrix is arranged on the end surface of the recess, and the third lens matrix is used to converge the light beam reflected by the second reflection surface to the optical fiber ribbon and converge and transmit the light beam from the optical fiber ribbon to the second reflection surface
  • Figure 1 is a schematic diagram of the connection relationship of an optical communication terminal
  • Figure 2 is a schematic diagram of the structure of an optical network unit
  • FIG. 3 is a schematic structural diagram of an optical module provided in an embodiment of the disclosure.
  • FIG. 4 is a schematic diagram of an exploded structure of an optical module provided in an embodiment of the disclosure.
  • Fig. 5 is a structural diagram of a circuit board in an embodiment of the disclosure.
  • Fig. 6 is a top view of the first lens assembly in an embodiment of the disclosure.
  • Fig. 7 is a bottom view of the first lens assembly in an embodiment of the disclosure.
  • Fig. 8 is an end view of the first lens assembly in an embodiment of the disclosure.
  • FIG. 9 is a partial cross-sectional view 1 of the optical module in the case of the first lens assembly structure in the embodiment of the disclosure.
  • FIG. 10 is a second partial cross-sectional view of the optical module in the case of the first lens assembly structure in the embodiment of the disclosure.
  • FIG 11 is the third partial cross-sectional view of the optical module in the case of the first lens assembly structure in the embodiment of the disclosure.
  • FIG. 12 is an enlarged schematic diagram of a partial cross-sectional structure at the position of the first recessed portion in the embodiment of the disclosure
  • FIG. 13 is a schematic diagram of the transmission optical path structure of the emitted light beam in an embodiment of the disclosure.
  • FIG. 14 is an enlarged schematic diagram of a partial cross-sectional structure at the position of the second recessed portion in an embodiment of the disclosure
  • 15 is a schematic diagram of the structure of the transmission optical path of the received light beam in an embodiment of the disclosure.
  • Fig. 16 is a top view of a second lens assembly in an embodiment of the present disclosure.
  • Fig. 17 is a bottom view of a second lens assembly in an embodiment of the disclosure.
  • Fig. 18 is a partial cross-sectional view 1 of the optical module in the case of the second lens assembly structure in the embodiment of the present disclosure
  • 19 is a second partial cross-sectional view of the optical module in the case of the second lens assembly structure in the embodiment of the disclosure.
  • FIG. 20 is a third partial cross-sectional view of the optical module in the case of the second lens assembly structure in the embodiment of the disclosure.
  • 21 is an enlarged schematic diagram of a partial cross-sectional structure of an optical module at a position of a light emitter in an embodiment of the disclosure
  • FIG. 22 is a schematic diagram of the transmission optical path structure of the light beam emitted by the light emitter in FIG. 21;
  • FIG. 23 is an enlarged schematic diagram of a partial cross-sectional structure of an optical module at a position of an optical receiver in an embodiment of the disclosure.
  • FIG. 24 is a schematic diagram of the structure of the transmission optical path of the light beam received by the optical receiver in FIG. 23;
  • FIG. 25 is a schematic diagram of the emission light path of the light transmitter in the embodiment of the disclosure.
  • FIG. 26 is a schematic diagram of the receiving optical path of the optical receiver in the embodiment of the disclosure.
  • One of the core links of optical fiber communication is the mutual conversion of optical and electrical signals.
  • Optical fiber communication uses information-carrying optical signals to be transmitted in optical fibers/optical waveguides and other information transmission equipment.
  • the passive transmission characteristics of light in optical fibers/optical waveguides can achieve low-cost and low-loss information transmission; and computers and other information processing equipment Electrical signals are used.
  • information transmission equipment such as optical fibers/optical waveguides and information processing equipment such as computers, it is necessary to realize mutual conversion between electrical signals and optical signals.
  • the optical module realizes the above-mentioned mutual conversion function of optical and electrical signals in the field of optical fiber communication technology, and the mutual conversion of optical signals and electrical signals is the core function of the optical module.
  • the optical module realizes the electrical connection with the external host computer through the golden finger on its internal circuit board.
  • the main electrical connections include power supply, I2C signal, data signal and grounding, etc.; the electrical connection method realized by the golden finger has become the optical module.
  • the mainstream connection method of the industry based on this, the definition of the pins on the golden finger has formed a variety of industry protocols/standards.
  • Figure 1 is a schematic diagram of the connection relationship of an optical communication terminal.
  • the connection of the optical communication terminal mainly includes the interconnection between the optical network unit 100, the optical module 200, the optical fiber 101 and the network cable 103.
  • One end of the optical fiber 101 is connected to the remote server, and one end of the network cable 103 is connected to the local information processing equipment.
  • the connection between the local information processing equipment and the remote server is completed by the connection of the optical fiber 101 and the network cable 103; and the connection between the optical fiber 101 and the network cable 103 is The optical network unit 100 with the optical module 200 is completed.
  • the optical port of the optical module 200 is externally connected to the optical fiber 101 to establish a bidirectional optical signal connection with the optical fiber 101;
  • the electrical port of the optical module 200 is externally connected to the optical network terminal 100 to establish a bidirectional electrical signal connection with the optical network terminal 100;
  • the optical module realizes the mutual conversion between optical signals and electrical signals, thereby realizing the establishment of an information connection between the optical fiber and the optical network terminal; specifically, the optical signal from the optical fiber is converted into an electrical signal by the optical module and then input to the optical network terminal 100 , The electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module and input into the optical fiber.
  • the optical network terminal has an optical module interface 102, which is used to connect to the optical module 200 and establish a two-way electrical signal connection with the optical module 200; the optical network terminal has a network cable interface 104, which is used to connect to the network cable 103 and establish a two-way electrical connection with the network cable 103.
  • Signal connection; a connection is established between the optical module 200 and the network cable 103 through the optical network terminal 100.
  • the optical network terminal transmits the signal from the optical module to the network cable, and transmits the signal from the network cable to the optical module, and the optical network terminal serves as the optical The upper computer of the module monitors the work of the optical module.
  • the remote server establishes a two-way signal transmission channel with the local information processing equipment through the optical fiber 101, the optical module 200, the optical network unit 100, and the network cable 103.
  • Common information processing equipment includes routers, switches, electronic computers, etc.; the optical network unit 100 is the upper computer of the optical module 200, which provides data signals to the optical module 200 and receives data signals from the optical module 200.
  • the common optical module 200 is upper-level The machine also has optical line terminals and so on.
  • FIG 2 is a schematic diagram of the optical network unit structure.
  • the optical network unit 100 has a circuit board 105, and a cage 106 is provided on the surface of the circuit board 105; an electrical connector is provided in the cage 106 for accessing optical module electrical ports such as golden fingers;
  • a radiator 107 is provided on the cage 106, and the radiator 107 has a convex structure such as fins to increase the heat dissipation area.
  • the optical module 200 is inserted into the optical network unit, specifically, the electrical port of the optical module is inserted into the electrical connector in the cage 106, and the optical port of the optical module 200 is connected to the optical fiber 101.
  • the cage 106 is located on the circuit board and wraps the electrical connectors on the circuit board in the cage; the optical module 200 is inserted into the cage, and the optical module 200 is fixed by the cage. The heat generated by the optical module 200 is transmitted to the cage through the optical module housing, and finally Diffusion is carried out through the radiator 107 on the cage.
  • FIG. 3 is a schematic structural diagram of an optical module 200 according to an embodiment of the present disclosure
  • FIG. 4 is an exploded structural schematic diagram of an optical module 200 according to an embodiment of the disclosure.
  • the optical module 200 provided by the embodiment of the present disclosure includes an upper housing 201, a lower housing 202, an unlocking component 203, a circuit board 300 and a lens assembly 400.
  • the upper shell 201 is covered on the lower shell 202 to form a wrapping cavity with two openings, and the outer contour of the wrapping cavity generally presents a square shape.
  • the lower housing 202 includes a main board and two side plates located on both sides of the main board and perpendicular to the main board;
  • the upper housing 201 includes a cover plate that covers the upper housing 201 Two side plates to form a wrapping cavity;
  • the upper housing 201 may also include two side walls located on both sides of the cover plate and perpendicular to the cover plate. The two side walls are combined with the two side plates to achieve
  • the upper housing 201 is covered on the lower housing 202.
  • the two openings can be two openings (204, 205) in the same direction, or two openings in different directions; one of the openings is the electrical port 204, and the golden finger of the circuit board 300 extends from the electrical port 204
  • the other opening is the optical port 205, which is used for external optical fiber access to connect the optical transceiver device inside the optical module 200.
  • the circuit board 203, optical transceiver device and other optoelectronic devices are located in the package cavity. in.
  • the upper housing 201 and the lower housing 202 are combined to facilitate the installation of components such as the circuit board 300 into the housing.
  • the upper housing 201 and the lower housing 202 form the outermost package protection housing of the optical module.
  • the upper housing 201 and the lower housing 202 are generally made of metal materials, which is conducive to electromagnetic shielding and heat dissipation; generally, the housing of the optical module 200 is not made into an integrated structure, so that when assembling circuit boards and other devices, positioning components, heat dissipation, and The electromagnetic shielding structure cannot be installed, and it is not conducive to production automation.
  • the unlocking component 203 is located on the outer wall of the wrapping cavity/lower casing 202, and is used to realize a fixed connection between the optical module and the upper computer, or to release the fixed connection between the optical module and the upper computer.
  • the unlocking component 203 has an engaging structure that matches the cage of the upper computer; pulling the end of the unlocking component 203 can make the unlocking component 203 move relative to the surface of the outer wall; the optical module is inserted into the cage of the upper computer, and the locking structure of the unlocking component 203 Fix the optical module in the cage of the host computer; by pulling the unlocking part 203, the locking structure of the unlocking part 203 will move accordingly, and then the connection relationship between the locking structure and the host computer will be changed to release the optical module from the host computer. Therefore, the optical module can be withdrawn from the cage of the host computer.
  • the circuit board 300 is provided with a light emitting chip, a driving chip of the light emitting chip, a light receiving chip, a transimpedance amplification chip, a limiting amplification chip, a microprocessor chip, etc., wherein the light emitting chip and the light receiving chip are directly mounted on the light On the circuit board of the module, this form is called COB package in the industry.
  • the circuit board 300 connects the electrical components in the optical module according to the circuit design through circuit wiring to achieve electrical functions such as power supply, electrical signal transmission, and grounding; at the same time, the circuit board 300 also has the functions of the various components carried, such as circuits
  • the board carries the lens assembly 400.
  • the circuit board is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also realize the bearing function. For example, the rigid circuit board can carry the chip smoothly; the rigid circuit board can also be inserted into the electrical connector in the cage of the host computer. Specifically, a metal pin/gold finger is formed on the surface of one end of the rigid circuit board for connection with the electrical connector.
  • FIG. 5 is a schematic structural diagram of a circuit board 300 provided by an embodiment of the disclosure.
  • the circuit board 300 is provided with a lens assembly 400, a light emitter, a laser driving chip, a light receiver, a limiting amplification chip, and a light detector (which are blocked by the lens assembly 400 and are not marked).
  • the lens assembly 400 is arranged above the optical chip in a cover type manner, and the lens assembly 400 and the circuit board 300 form a cavity that wraps the optical chip such as the light emitter and the light receiver.
  • the lens assembly 400 is usually a plastic device, which is used to transmit the light beam and change the direction of the light beam transmission during the transmission process.
  • the light emitted by the optical transmitter enters the optical fiber after being reflected by the lens assembly, and the light from the optical fiber enters the optical receiver after being reflected by the lens assembly.
  • the lens assembly not only serves to seal the optical chip. At the same time, the optical connection between the optical chip and the optical fiber is also established.
  • High-speed data transmission requires the optical chip and its driving/matching chip to be arranged close to each other to shorten the connection between the chips and reduce the signal loss caused by the connection.
  • the lens assembly 400 is covered above the optical chip, so The lens assembly 400 generally covers the optical chip and its driving/matching chip at the same time. Therefore, the light emitter and the driving chip of the light emitter are arranged at a close distance, the lens assembly 400 covers the light emitter and the driving chip of the light emitter; the light receiver and the transimpedance magnifying chip are arranged at a close distance, and the lens assembly 400 covers the light receiver. And transimpedance amplifying chip.
  • an optical fiber ribbon 500 is connected to the lens assembly 400, and a light beam is output and input through the optical fiber ribbon 500.
  • the optical fiber ribbon 500 includes several optical fibers.
  • the optical fiber ribbon 500 is connected to the lens assembly 400 through an optical fiber holder 600, and the optical fiber holder 600 is used to support the optical fiber ribbon 500 and connect to the lens assembly 400.
  • the optical fibers in the optical fiber ribbon 500 are fixed in the optical fiber holder 600, and the end surface of the optical fibers in the optical fiber ribbon 500 is flush with the end surface of the optical fiber holder 600.
  • FIG. 6 is a top view of the first lens assembly 400 provided by an embodiment of the disclosure.
  • the lens assembly 400 provided by the embodiment of the present disclosure is provided with a first recessed portion 401, a second recessed portion 402, and a third recessed portion 403, and the first recessed portion 401 and the second recessed portion 402 are provided on the lens.
  • the third recess 403 is provided on the side surface of the lens assembly 400.
  • the bottom surface of the first recessed portion 401 forms a second inclined surface and a third inclined surface, and a mirror 404 is obliquely placed in the first recessed portion 401.
  • the reflecting mirror 404 is buckled on the second inclined surface and the third inclined surface, and the reflecting mirror 404 forms a cavity with the second inclined surface and the third inclined surface.
  • the bottom surface of the second recess 402 forms a first reflective surface 4021.
  • a third lens matrix 4032 is provided on the end surface of the third recess 403.
  • a first end surface 4031 is formed in the third recess 403, and a third lens matrix 4032 is provided on the first end surface 4031.
  • the third lens matrix 4032 is directly formed on the first end surface 4031.
  • the third lens matrix 4032 is formed by a regular arrangement of several lenses, and is used to focus parallel light beams or convert divergent light beams into parallel light beams.
  • the third recess 403 is used to connect the optical fiber ribbon.
  • the end face of each optical fiber in the optical fiber ribbon is correspondingly located at the focal point of the corresponding lens in the third lens matrix 4032.
  • the optical fiber ribbons are arranged in columns, so the third lens matrix 4032 is a lens matrix including a row of lenses.
  • FIG. 7 is a bottom view of a lens assembly 400 provided by an embodiment of the disclosure.
  • a first lens matrix 4051 and a second lens matrix 4052 are provided on the bottom surface 405 of the lens assembly 400 provided by the embodiment of the present disclosure.
  • the projection area of the first concave portion 401 on the bottom surface of the lens assembly 400 covers the first lens matrix 4051
  • the projection area of the second concave portion 402 on the bottom surface of the lens assembly 400 covers the second lens matrix 4052.
  • the first lens matrix 4051 and the second lens matrix 4052 are directly formed on the bottom surface 405.
  • the first lens matrix 4051 and the second lens matrix 4052 are both formed by a regular arrangement of several lenses, which are used to focus parallel light beams or convert divergent light beams into parallel light beams.
  • the first lens matrix 4051 is used to converge the divergent light beams emitted by the light emitter into parallel light and enter the lens assembly 400
  • the second lens matrix 4052 is used to transmit the lens assembly 400 to the light. The receiver's beam is focused.
  • the focal lengths of the lenses in the first lens matrix 4051 and the focal lengths of the lenses in the second lens matrix 4052 may be the same or different.
  • the focal length of the lens in the first lens matrix 4051 is the same as the focal length of the lens in the second lens matrix 4052; when When the light emitting surface of the light emitter and the light receiving surface of the light receiver have different heights, the focal lengths of the lenses in the first lens matrix 4051 are different from the focal lengths of the lenses in the second lens matrix 4052.
  • the focal length of the lens in the first lens matrix 4051 and the focal length of the lens in the second lens matrix 4052 can be selected according to the height of the light emitting surface of the light emitter and the light receiving surface of the light receiver, which is convenient for various types of emitters in the optical module. And the choice of receiver.
  • a fifth inclined surface 407 is further formed on the bottom surface of the lens assembly 400 provided in an embodiment of the present disclosure, and the fifth inclined surface 407 is located on one side of the bottom surface 405. In some embodiments of the present application, the fifth inclined surface 407 intersects the bottom surface 405. When the lens assembly 400 is fixed on the circuit board 300, the fifth inclined surface 407 is inclined toward the circuit board 300. The fifth inclined surface 407 is used for setting the fourth lens matrix.
  • FIG. 8 is an end view of a lens assembly 400 provided by an embodiment of the disclosure.
  • a second end surface 4033 is also formed in the third recessed portion 403.
  • the second end surface 4033 and the first end surface 4031 have a height difference on the third recessed portion 403, so that the first end surface 4031 and the first end surface 4031 have a height difference.
  • a groove is formed between the two end surfaces 4033, and the third lens matrix 4032 is located in the groove.
  • the end face of the optical fiber in the optical fiber ribbon is flush with the second end face 4033, and the light beam passing through the third lens matrix 4032 is transmitted in the groove and then enters the optical fiber in the optical fiber ribbon.
  • the end surface of the optical fiber holder abuts and contacts the second end surface 4033.
  • a limit post is arranged on the third recess 403, and the limit post is used to fixly connect the fiber holder and assist the fiber holder to locate the fixed position of the fiber holder.
  • the limit post includes a first limit post 4034 and a second limit post 4035, and the first limit post 4034 and the second limit post 4035 are disposed on the end surface of the third recess 403 on.
  • the first limit post 4034 and the second limit post 4035 are arranged on the second end surface 4033.
  • the first limit post 4034 and the second limit post 4035 are respectively located on the second end surface 4033 near the two ends of the first end surface 4031, for example, the first limit post 4034 is located on the first end surface.
  • the second limiting post 4035 is located at the right end of the second limiting post 4035.
  • the bottom surface of the third recess 403 includes a first step surface 4037, the first step surface 4037 is connected to the second end surface 4033, the first step surface 4037 is used to support the fiber holder and has a guiding effect during the installation of the fiber holder.
  • a first side surface and a second side surface are provided on both sides of the first step surface 4037.
  • the first side surface and the second side surface are perpendicular to the first step surface 4037.
  • the first side surface and the second side surface can assist in positioning, which helps to enhance the guiding effect of the first step surface 4037.
  • the bottom surface of the third recess 403 further includes a second step surface 4036, and the second step surface 4036 is in contact with the first end surface 4031.
  • the third concave portion 403 is provided with a first side surface 4038 and a second side surface 4039, respectively, and a first side surface 4038 and a second side surface 4039 are provided on the sides of the third recessed portion 403.
  • the length in the end surface direction of the third recessed portion 403 is smaller than the length in the end surface direction of the third recessed portion 403.
  • Both the first side surface 4038 and the second side surface 4039 are inclined from the outside of the third recessed portion 403 to the center of the third recessed portion 403, so the first side surface 4038 and the second side surface 4039 increase the opening area of the top surface of the third recessed portion 403, In this way, the installation of the optical fiber bracket is more convenient without affecting the installation firmness of the optical fiber bracket.
  • the third lens matrix 4032 includes a first fiber lens 4032-1 and a second fiber lens 4032-2.
  • the first fiber lens 4032-1 is used to focus and transmit the parallel light beam emitted by the light transmitter through the lens assembly 400 to the optical fiber ribbon
  • the second fiber lens 4032-2 is used to convert the divergent light beam transmitted in the optical fiber ribbon into parallel light It is transmitted in the lens assembly 400.
  • the focal lengths of the first fiber lens 4032-1 and the second fiber lens 4032-2 are the same.
  • the lens assembly 400 is a transparent plastic part, which is usually manufactured by an injection molding process.
  • the first recessed portion 401, the second recessed portion 402, and the third recessed portion 403 can be regarded as grooves formed by processing the lens assembly 400.
  • Fig. 9 is a partial cross-sectional view of the optical module under the first lens assembly structure
  • Fig. 10 is a partial cross-sectional view of the optical module under the first lens assembly structure
  • Fig. 11 is a partial cross-sectional view of the optical module under the first lens assembly structure Partial cross-sectional view of the optical module III.
  • the optical transmitter 301 and the optical receiver 303 are located under the lens assembly 400, and the lens assembly 400 is covered on the optical transmitter 301 and the optical receiver 303.
  • the first lens matrix 4051 is located above the light transmitter 301
  • the second lens matrix 4052 is located above the light receiver 303.
  • FIG. 12 is an enlarged schematic diagram of a partial cross-sectional structure of the optical module at the position of the first recess 401.
  • the second inclined surface 4011 and the third inclined surface 4012 of the bottom surface of the first concave portion 401 are formed by the first concave portion 401 sinking in the direction of the bottom surface of the lens assembly 400; the mirror 404 is arranged in the first concave portion 401 At this time, the reflecting mirror 404 is buckled on the second inclined surface 4011 and the third inclined surface 4012; the second inclined surface 4011, the third inclined surface 4012 and the reflecting mirror 404 form a cavity.
  • the mirror 404 is an optical device for reflecting the light beam incident on it.
  • the reflector 404 is made of a transparent plastic or glass plane coated with a reflective film.
  • the second inclined surface 4011 and the third inclined surface 4012 are connected.
  • the bottom surface of the first recess 401 further includes a first inclined surface 4013, and the first inclined surface 4013 is used to support and support the mirror 404.
  • the first inclined surface 4013 is located at the end of the second inclined surface 4011, and the first inclined surface 4013 fixedly supports one end of the reflector 404.
  • the bottom surface of the first recess 401 further includes a fourth inclined surface 4014, and the fourth inclined surface 4014 is also used to support and support the mirror 404.
  • the fourth inclined surface 4014 is located at an end of the third inclined surface 4012, and the fourth inclined surface 4014 fixedly supports the other end of the mirror 404. In this way, the first inclined surface 4013 and the fourth inclined surface 4014 are used to jointly support the connecting mirror 404 and increase the support firmness of the mirror 404.
  • the projection of the bottom surface 405 on the circuit board 300 covers the light emitter 301, and the first lens matrix 4051 is provided on the bottom surface 405.
  • the first lens matrix 4051 is formed by a number of lenses arranged regularly.
  • the first lens matrix 4051 is a lens matrix including a row of lenses, and the optical axis of the lenses in the first lens matrix 4051 is perpendicular to the light emitting surface of the light emitter 301.
  • the light beam emitted by the light emitter 301 is incident on the first lens matrix 4051, and the first lens matrix 4051 converges and converts the divergent light beams emitted by the light emitter 301 into parallel light beams.
  • the first lens matrix 4051 is directly formed on the bottom surface 405. In some embodiments of the present application, when the lens assembly 400 is assembled on the circuit board 300, the focal point of the lens in the first lens matrix 4051 is located on the light emitting surface of the light emitter 301.
  • the fifth inclined surface 407 is located on the side of the bottom surface 405, and the fifth inclined surface 407 intersects the bottom surface 405.
  • the fifth inclined surface 407 faces the circuit board 300 and faces the photodetector 302 for refracting and transmitting the light beam transmitted to the fifth inclined surface 407 to the photodetector 302.
  • a fourth lens matrix 4071 is provided on the fifth inclined surface 407.
  • the fourth lens matrix 4071 is formed by a number of lenses arranged regularly.
  • the fourth lens matrix 4071 is a lens matrix including a row of lenses, and the optical axis of the lenses in the fourth lens matrix 4071 passes through the light receiving surface of the photodetector 302.
  • the light beam emitted by the light transmitter 301 is reflected by the lens assembly 400 to the fifth inclined surface 407, and the fourth lens matrix 4071 converges and transmits the light beam transmitted in parallel to the fifth inclined surface 407 to the photodetector 302.
  • the optical transmitter 301 is connected to the power supply circuit and the signal circuit on the circuit board 300, and emits an optical signal according to the electrical signal to realize the conversion of the electrical signal to the optical signal in the optical module.
  • the light emitter 301 is mounted on the circuit board 300.
  • the light emitter 301 may be a light emitting chip, such as a laser chip.
  • the photodetector 302 is connected with the power supply circuit and the signal circuit on the circuit board 300.
  • the light receiving surface of the photodetector 302 receives part of the optical signal emitted by the optical transmitter 301 reflected by the lens assembly 400, and will receive the optical signal. Convert it into an electrical signal and transmit the electrical signal to the signal circuit for monitoring the status of the optical transmitter. Specifically, the monitoring of the state of the optical transmitter 301 is realized by detecting the optical power parameters of the received light beam.
  • the photodetector 302 may be a photodiode chip.
  • FIG. 13 is a schematic diagram of the transmission optical path structure of the light beam emitted by the light transmitter 301.
  • the light emitter 301 emits a divergent light beam to the first lens matrix 4051, and the first lens matrix 4051 converts the divergent light beam into a parallel light beam; the parallel light beam is transmitted to the second inclined surface 4011 inside the lens assembly 400 and transmitted to The parallel beam of the second inclined surface 4011 is partially refracted into the cavity formed by the second inclined surface 4011, the third inclined surface 4012 and the mirror 404, and is partially reflected by the second inclined surface 4011, that is, the parallel light beam incident on the second inclined surface 4011 is divided.
  • the light beam refracted into the cavity formed by the second inclined surface 4011, the third inclined surface 4012 and the reflecting mirror 404 is transmitted to the reflecting mirror 404, and the reflecting mirror 404 reflects the light beam and transmits it to the third inclined surface 4012.
  • the third inclined surface 4012 is refracted and incident into the lens assembly 400, and then transmitted to the first end surface 4031.
  • the first fiber lens 4032-1 in the third lens matrix 4032 on the first end surface 4031 refracts and converges the parallel light transmitted thereto.
  • the light beam reflected by the second inclined surface 4011 is transmitted to the fifth inclined surface 407, and the fourth lens matrix 4071 on the fifth inclined surface 407 converges and transmits the parallel light transmitted thereto to the light receiving surface of the photodetector 302 .
  • FIG. 14 is an enlarged schematic diagram of a partial cross-sectional structure of the optical module at the position of the second recess 402.
  • the lens assembly 400 forms a first reflective surface 4021 on the bottom surface of the second concave portion 402, and the first reflective surface 4021 is inclined to the bottom surface 405.
  • the first reflective surface 4021 is used to reflect the light beam transmitted thereto.
  • a reflective film is formed on the first reflective surface 4021.
  • the projection of the bottom surface 405 on the circuit board 300 covers the light receiver 303, and a second lens matrix 4052 is also provided on the bottom surface 405.
  • the second lens matrix 4052 is formed by a number of lenses arranged regularly.
  • the second lens matrix 4052 is a lens matrix including a row of lenses, and the optical axis of the lenses in the second lens matrix 4052 is perpendicular to the light receiving surface of the light receiver 303.
  • the light beam reflected by the first reflection surface 4021 is incident on the second lens matrix 4052, and the second lens matrix 4052 converges the parallel light beams incident thereon to the light receiving surface of the light receiver 303.
  • the second lens matrix 4052 is directly formed on the bottom surface 405. In some embodiments of the present application, when the lens assembly 400 is assembled on the circuit board 300, the focal point of the lens in the second lens matrix 4052 is located on the light receiving surface of the light receiver 303.
  • FIG. 15 is a schematic diagram of the transmission optical path structure of the optical receiver 303 receiving the light beam.
  • the light beam output by the optical fiber ribbon 500 is transmitted to the second fiber lens 4032-2 in the third lens matrix 4032.
  • the light beam output by the optical fiber ribbon 500 is divergent light, and the divergent light passes through the second fiber lens 4032. 2 Refraction converges and transforms into parallel light.
  • the parallel light is transmitted to the first reflecting surface 4021.
  • the first reflecting surface 4021 reflects the parallel light.
  • the light beam reflected by the first reflecting surface 4021 is transmitted to the bottom surface 405.
  • the lens matrix 4052 refracts and converges the parallel light transmitted thereto to the light receiving surface of the light receiver 303.
  • the optical receiver 303 is connected to the power supply circuit and the signal circuit on the circuit board 300, and the optical receiver 303 is used to receive an optical signal from the outside of the optical module and generate an electrical signal.
  • the light receiving surface of the optical receiver 303 receives the optical signal incident through the optical fiber ribbon 500, the received optical signal is converted into an electrical signal and the electrical signal is output through the signal circuit, so as to realize the conversion from the optical signal to the electrical signal in the optical module. Conversion between.
  • the light receiver 303 may be a light receiving chip, such as a photodiode chip.
  • FIG. 16 is a top view of the first lens assembly 400 provided by an embodiment of the disclosure.
  • the lens assembly 400 provided by the embodiment of the present disclosure is provided with a first recessed portion 401 and a third recessed portion 403.
  • the first recessed portion 401 is provided on the top surface of the lens assembly 400 near the center.
  • the recess 403 is provided at the end of the lens assembly 400.
  • the bottom surface of the first recess 401 forms a second reflective surface 4015.
  • a third lens matrix 4032 is provided on the end surface of the third recess 403.
  • a first end surface 4031 is formed in the third recess 403, and a third lens matrix 4032 is provided on the first end surface 4031.
  • the third lens matrix 4032 is directly formed on the first end surface 4031.
  • the third lens matrix 4032 is formed by a regular arrangement of several lenses, and is used to focus parallel light beams or convert divergent light beams into parallel light beams.
  • the third recess 403 is used to connect the optical fiber ribbon.
  • the end face of each optical fiber in the optical fiber ribbon is correspondingly located at the focal point of the corresponding lens in the third lens matrix 4032.
  • the optical fiber ribbons are arranged in columns, so the third lens matrix 4032 is a lens matrix including a row of lenses.
  • FIG. 17 is a bottom view of a lens assembly 400 provided by an embodiment of the disclosure.
  • the bottom surface 405 of the lens assembly 400 provided by the embodiment of the present disclosure.
  • the bottom surface 405 is located in the projection area of the first concave portion 401 and the second concave portion 402 on the bottom surface of the lens assembly 400.
  • a first lens matrix 4051 and a second lens matrix 4052 are provided on the bottom surface 405.
  • the projection of the first recess 401 on the bottom surface of the lens assembly 400 covers the first lens matrix 4051 and the second lens matrix 4052.
  • the first lens matrix 4051 and the second lens matrix 4052 are both formed by a regular arrangement of several lenses, which are used to focus parallel light beams or convert divergent light beams into parallel light beams.
  • the lenses in the first lens matrix 4051 are used to convert the divergent light beams emitted by the light emitter into parallel light
  • the second lens matrix 4052 is used to focus the parallel light beams transmitted to it.
  • the light receiving surface of the light receiver In some embodiments of the present application, the first lens matrix 4051 and the second lens matrix 4052 are directly formed on the bottom surface 405.
  • the focal lengths of the lenses in the first lens matrix 4051 and the focal lengths of the lenses in the second lens matrix 4052 may be the same or different.
  • the focal length of the lens in the first lens matrix 4051 is the same as the focal length of the lens in the second lens matrix 4052; when When the light emitting surface of the light emitter and the light receiving surface of the light receiver have different heights, the focal lengths of the lenses in the first lens matrix 4051 are different from the focal lengths of the lenses in the second lens matrix 4052.
  • the focal length of the lens in the first lens matrix 4051 and the focal length of the lens in the second lens matrix 4052 can be selected according to the height of the light emitting surface of the light emitter and the light receiving surface of the light receiver, which is convenient for various types of emitters in the optical module. And the choice of receiver.
  • the lens assembly 400 provided by the embodiments of the present disclosure is a transparent plastic part, which is usually manufactured by an injection molding process.
  • the first concave portion 401 and the third concave portion 403 can be regarded as grooves formed by processing the lens assembly 400.
  • Fig. 18 is a partial cross-sectional view of the optical module under the second lens assembly structure
  • Fig. 19 is a partial cross-sectional view of the optical module under the second lens assembly structure
  • Fig. 20 is a partial cross-sectional view of the optical module under the second lens assembly structure. Partial cross-sectional view of the optical module III.
  • the optical transmitter 301 and the optical receiver 303 are located under the lens assembly 400, and the lens assembly 400 is covered on the optical transmitter 301 and the optical receiver 303.
  • the optical transmitter 301 and the optical receiver 303 are mounted on the circuit board 300. As shown in FIGS.
  • the projection of the bottom surface 405 on the circuit board 300 covers the light transmitter 301 and the light receiver 303.
  • the bottom surface 405 is located above the light transmitter 301 and the light receiver 303
  • the first lens matrix 4051 is located above the light transmitter 301
  • the second lens matrix 4052 is located above the light receiver 303.
  • FIG. 21 is an enlarged schematic diagram of a partial cross-sectional structure of the optical module at the position of the light emitter 301.
  • the second reflective surface 4015 of the bottom surface of the first recess 401 is formed by sinking the first recess 401 in the direction of the bottom surface of the lens assembly 400.
  • the second reflective surface 4015 is inclined in the direction of the first end surface 4031, the projection of the second reflective surface 4015 on the circuit board 300 covers the light emitter 301, and the projection of the second reflective surface 4015 on the bottom surface of the lens assembly 400 covers the first lens matrix 4051,
  • the projection of the first lens matrix 4051 on the circuit board 300 covers the light emitter 301.
  • the second reflective surface 4015 is used for reflecting the light beam transmitted to it, and used for changing the propagation direction of the light beam transmitted to it.
  • a reflective film is formed on the second reflective surface 4015, and the reflective film is used to ensure the reflection efficiency of the second reflective surface 4015.
  • the first lens matrix 4051 is formed by a number of lenses arranged regularly.
  • the first lens matrix 4051 is a lens matrix including a row of lenses, and the optical axis of the lenses in the first lens matrix 4051 is perpendicular to the light emitting surface of the light emitter 301.
  • the light beam emitted by the light emitter 301 is incident on the first lens matrix 4051, and the first lens matrix 4051 converges and converts the divergent light beams emitted by the light emitter 301 into parallel light beams.
  • the first lens matrix 4051 is directly formed on the bottom surface 405.
  • the optical transmitter 301 is connected to the power supply circuit and the signal circuit on the circuit board 300, and emits a light beam carrying data according to the electrical signal to realize the conversion of the electrical signal to the optical signal in the optical module.
  • the light emitter 301 is mounted on the circuit board 300.
  • the optical transmitter 301 may be a laser chip.
  • FIG. 22 is a schematic diagram of the transmission optical path structure of the light beam emitted by the light transmitter 301.
  • the focal point of the lens in the first lens matrix 4051 is located on the light emitting surface of the light emitter 301, the light emitter 301 emits a divergent light beam to the first lens matrix 4051, and the first lens matrix 4051 converts the divergent light beam into Parallel beam; the parallel beam is transmitted to the second reflecting surface 4015 inside the lens assembly 400, and transmitted to the second reflecting surface 4015.
  • the parallel beam is reflected by the second reflecting surface 4015 and transmitted to the first end surface 4031, the third lens on the first end surface 4031
  • the first fiber lens 4032-1 in the matrix 4032 refracts and converges the parallel light transmitted thereto to the fiber ribbon 500.
  • FIG. 23 is an enlarged schematic diagram of a partial cross-sectional structure of the optical module at the position of the optical receiver 303.
  • the projection of the second reflective surface 4015 on the circuit board 300 covers the light receiver 303
  • the projection of the second reflective surface 4015 on the bottom surface of the lens assembly 400 covers the second lens matrix 4052.
  • the projection on the circuit board 300 covers the light receiver 303.
  • the second lens matrix 4052 is formed by a number of lenses arranged regularly.
  • the second lens matrix 4052 is a lens matrix including a row of lenses, and the optical axis of the lenses in the second lens matrix 4052 is perpendicular to the light receiving surface of the light receiver 303.
  • the light beam reflected by the second reflection surface 4015 is incident on the second lens matrix 4052, and the second lens matrix 4052 converges the parallel light beams incident thereon to be incident on the light receiving surface of the light receiver 303.
  • the second lens matrix 4052 is directly formed on the bottom surface 405.
  • FIG. 24 is a schematic diagram of the structure of the transmission optical path of the optical receiver 303 receiving the light beam.
  • the light beam output by the optical fiber ribbon 500 is transmitted to the second fiber lens 4032-2 in the third lens matrix 4032.
  • the light beam output by the optical fiber ribbon 500 is divergent light, and the divergent light passes through the second fiber lens 4032. 2 Refraction converges and transforms into parallel light, and the parallel light is transmitted to the first reflecting surface 4021, the second reflecting surface 4015 reflects the parallel light, and the light beam reflected by the second reflecting surface 4015 is transmitted to the second lens matrix 4052 on the bottom surface 405
  • the parallel light transmitted thereto is refracted and converged and transmitted to the light receiving surface of the light receiver 303.
  • the focal point of the lens in the second lens matrix 4052 is located on the light receiving surface of the light receiver 303, the light beam transmitted to the light receiver 303 is received to the greatest extent.
  • the optical receiver 303 is connected to the power supply circuit and the signal circuit on the circuit board 300, and the optical receiver 303 is used to receive a light beam (optical signal) carrying data.
  • a light beam optical signal
  • the optical receiver 303 may be a photodiode chip.
  • FIG. 25 is a schematic diagram of the light emitting path of the optical transmitter
  • FIG. 26 is a schematic diagram of the receiving light path of the optical receiver.
  • the end face of the optical fiber in the optical fiber ribbon 500 is located at the focal position of the lens in the third lens matrix 4032.
  • the focal length of the lens in the third lens matrix 4032 is denoted as f fiber
  • the light emitter 301 is located in the first lens matrix.
  • the focal position of the lens in 4051, the focal length of the lens in the first lens matrix 4051 is denoted as f TX
  • the spot diameter at the position of the optical fiber is denoted as S 0 .
  • the light receiver 303 in the receiving light path, the light receiver 303 is located at the focal position of the lens in the second lens matrix 4052, and the focal length of the lens in the second lens matrix 4052 is denoted as f RX .
  • the effective light receiving area of the optical receiver is large, generally about 60 ⁇ m, so the receiving spot of the optical receiver 303 can be appropriately larger, for example, about 40 ⁇ m; but in 25G/100G products, the light The effective light receiving area of the receiver 303 is small, generally only about 40 ⁇ m. At this time, it is required that the light spot received at the light receiver 303 is only about 20 ⁇ m. If the spot size is large, the difficulty of patching process and fiber coupling will increase, and the efficiency will be very low.
  • the optical transmitter 301 and the optical receiver 303 have different heights, and the lenses in the first lens matrix 4051 and the second lens matrix 4052 are arranged The lenses have different focal lengths.
  • the height compensation of the light emitting surface of the light emitter 301 and the light receiving surface of the light receiver 303 can be realized, so that the design can be made Different sizes of f TX and f RX can obtain ideal S 0 and S 2 , and can also meet the requirements of different heights of optical transmitters and optical receivers under the same focal length, or both can be compatible.
  • the numerical aperture of the fiber NA 0.2, according to the geometric relationship, 2 ⁇ f fiber ⁇ NA ⁇ D, that is, f fiber ⁇ 0.625mm.
  • the divergence angle of the laser ⁇ 13°, according to the geometric relationship, 2 ⁇ f TX ⁇ tan ⁇ D, that is, f TX ⁇ 0.541mm.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne un module optique (200), comprenant : une carte de circuit imprimé (105), un émetteur optique (301), un détecteur optique (302), un récepteur optique (303), un ensemble lentille (400) et un ruban de fibre optique (500). Le ruban de fibre optique (500) est relié à l'ensemble lentille (400). L'ensemble lentille (400) présente une surface supérieure pourvue d'une première partie évidée (401) et d'une deuxième partie évidée (402), une surface inférieure pourvue d'une première matrice de lentilles (4051) et d'une deuxième matrice de lentilles (4052), et une surface latérale pourvue d'une troisième partie évidée (403). Une surface inférieure de la première partie évidée (401) comprend une première surface inclinée (4013), une deuxième surface inclinée (4011), et une troisième surface inclinée (4012) ; un réflecteur (404) est disposé obliquement dans la première partie évidée (401) ; une cavité est formée entre le réflecteur (404) et la deuxième surface inclinée (4011) ainsi que la troisième surface inclinée (4012) ; une première surface de réflexion (4021) est formée sur une surface inférieure de la deuxième partie évidée (402) ; une troisième matrice de lentilles (4032) est disposée sur une surface d'extrémité de la troisième partie évidée (403). Le module optique (200) facilite l'obtention d'un point lumineux sur le ruban de fibre optique (500) d'un faisceau lumineux émis par l'émetteur optique (301) au moyen de l'ensemble lentille (400), et d'un point lumineux sur le récepteur optique (303) d'un faisceau lumineux transmis à l'ensemble lentille (400) par l'intermédiaire du ruban de fibre optique (500) atteignant simultanément le meilleur.
PCT/CN2020/126300 2019-12-03 2020-11-03 Module optique WO2021109776A1 (fr)

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CN201911222045.2A CN112904494B (zh) 2019-12-03 2019-12-03 一种光模块

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024098945A1 (fr) * 2022-11-09 2024-05-16 青岛海信宽带多媒体技术有限公司 Module optique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113484960A (zh) * 2021-06-25 2021-10-08 青岛海信宽带多媒体技术有限公司 一种光模块

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201409101A (zh) * 2012-08-21 2014-03-01 Hon Hai Prec Ind Co Ltd 光纖耦合透鏡及光纖連接器
CN203786342U (zh) * 2014-04-11 2014-08-20 苏州旭创科技有限公司 光学组件
US20140294400A1 (en) * 2013-04-01 2014-10-02 Delta Electronics, Inc. Optical module and optical transceiver module
CN108490537A (zh) * 2018-03-20 2018-09-04 青岛海信宽带多媒体技术有限公司 光模块
CN108776373A (zh) * 2018-06-21 2018-11-09 青岛海信宽带多媒体技术有限公司 光模块
CN109828335A (zh) * 2017-11-23 2019-05-31 海思光电子有限公司 一种光学耦合模块及电子设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9645331B1 (en) * 2016-09-12 2017-05-09 Yottahn, Inc. Optical module device and method of manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201409101A (zh) * 2012-08-21 2014-03-01 Hon Hai Prec Ind Co Ltd 光纖耦合透鏡及光纖連接器
US20140294400A1 (en) * 2013-04-01 2014-10-02 Delta Electronics, Inc. Optical module and optical transceiver module
CN203786342U (zh) * 2014-04-11 2014-08-20 苏州旭创科技有限公司 光学组件
CN109828335A (zh) * 2017-11-23 2019-05-31 海思光电子有限公司 一种光学耦合模块及电子设备
CN108490537A (zh) * 2018-03-20 2018-09-04 青岛海信宽带多媒体技术有限公司 光模块
CN108776373A (zh) * 2018-06-21 2018-11-09 青岛海信宽带多媒体技术有限公司 光模块

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024098945A1 (fr) * 2022-11-09 2024-05-16 青岛海信宽带多媒体技术有限公司 Module optique

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