CN107884883A - A kind of laser and optical module - Google Patents
A kind of laser and optical module Download PDFInfo
- Publication number
- CN107884883A CN107884883A CN201711145275.4A CN201711145275A CN107884883A CN 107884883 A CN107884883 A CN 107884883A CN 201711145275 A CN201711145275 A CN 201711145275A CN 107884883 A CN107884883 A CN 107884883A
- Authority
- CN
- China
- Prior art keywords
- laser
- light
- optoisolator
- base
- module
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
- G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
-
- 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
-
- 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
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
-
- 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
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of laser and optical module, stability is poor during solving its work of existing optical module, make whole system can not normal work the problem of.The luminous point that goes out of laser module in the embodiment of the present invention on base aligns with being installed on the clearance hole light inlet of the first optoisolator on base, the light that laser module is launched introduces the light hole of isolator, and then be transmitted into by light hole outside base encapsulating shell, then the optical fiber in penetrating mirror is transferred to the outside of system.Reflected light caused by even if can produce in the process due to different reasons, it can not all to reflect light back into laser module internal in fiber link, because it is a kind of Passive Optical Components for allowing Unidirectional light to pass through in the first isolator, the direction of light is limited, make light can only one direction transmission, therefore self-coupling effect will not be produced in laser module internal, improves the stability of system.
Description
Technical field
The present invention relates to communication technique field, more particularly to a kind of laser and optical module.
Background technology
Existing optical module includes lens, optical fiber, laser.Its course of work is to launch light extraction, light by laser
Transmitted by the optical fiber being installed in lens, be finally transmitted into its exterior.But different originals are constantly present in the course of the work
The reflected light because caused by, reflected light are produced from coupling effect into laser module, cause the work of light path system to become unstable
It is fixed；Also improved with light passes speed constantly, influence of the reflected light to the stability of system is increasing, and then makes whole
Optical fiber news letter system can not normal work.
In summary, stability is poor during its work of existing optical module, makes whole system can not normal work.In this feelings
Under condition, the high optical module of stability is very important when continually looking for work.
The content of the invention
It is stable during solving its work of existing optical module the embodiments of the invention provide a kind of laser and optical module
Property is poor, make whole system can not normal work the problem of.
The embodiments of the invention provide a kind of laser and optical module, including：
A kind of laser, including：Base, base encapsulating shell and multiple pins；The base is provided with laser module, described
Base is provided with multiple pin holes, and one end of each pin is pacified through the base encapsulating shell and by the pin hole
Loaded on the base, and each described pin is connected with the laser module, it is characterised in that also optically isolated including first
Device, first optoisolator are installed on the base and in the base encapsulating shells, wherein, described first is optically isolated
The light hole light inlet of device and the laser module go out described in the light that luminous point aligns to launch the laser module introduces
Light hole.
A kind of optical module, including lens, the optical fiber for being installed on the lens；Also include described laser, the laser
Device is installed on the lens.
Alternatively, the second optoisolator is provided with described in described optical module between lens and the optical fiber.
Laser module in the embodiment of the present invention on base goes out luminous point and is installed on the logical of the first optoisolator on base
The alignment of hole light inlet is closed, the light that laser module is launched introduces the light hole of isolator, and then is transmitted into pipe by light hole
Outside seat encapsulating shell, then optical fiber in penetrating mirror is transferred to the outside of system.Go out light path along laser, due in mode of laser
The luminous point that goes out of group is provided with the first optoisolator afterwards, therefore, after the laser that optics module is sent passes through optoisolator, i.e.,
Making can be because different reasons produces reflected light in the follow-up light path of optical communication system, but this part reflected light can not return to
The inside of laser module, because being a kind of Passive Optical Components for allowing Unidirectional light to pass through in the first isolator, to the direction of light
Limited, make light can only one direction transmission, therefore will not produce self-coupling effect in laser module internal, improve system
Stability.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 show a kind of schematic diagram of optical module；
Fig. 2 show a kind of partial schematic diagram of optical module；
Fig. 3 show a kind of schematic diagram of the laser with encapsulating structure inside optical module；
Fig. 4 show a kind of decomposing schematic representation of optical mode block assembly；
Fig. 5 show a kind of structure chart of laser of the embodiment of the present invention；
Icon implication：
100- printed circuit board (PCB)s；101- edge connectors；102- housings；104- case lids；105- bolt lock mechanisms；200- has
There is the laser of encapsulating structure；204- connectors；301- base encapsulating shells；302- bases；303- pins；400- first is optically isolated
Device；401- laser modules.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
As shown in Figures 1 and 2, optical module includes：Housing 102, case lid 104, bolt lock mechanism 105, it is installed on housing
Printed circuit board (PCB) 100, edge connector 101 and the laser 200 with encapsulating structure being installed in housing.
Wherein, bolt lock mechanism 105 can allow optical module to select the position fixed relative to the selected fixation of equipment
Put with polytropy；Edge connector 101 is the structure for being configured as being electrically coupled to equipment；It is internal in printed circuit board (PCB) 100 to print
Circuit brushed with laser transmitting terminal.
Laser 200 is installed on inside optical module, and the printed circuit board (PCB) inside optical module is connected to by connector 204
On 100, and then, when equipment by edge connector 101, printed circuit board (PCB) 100 and connector 204 by control signal transmit to
During laser 200, laser 200 can launch laser beam according to control signal, and then form output light.
As shown in figure 3, present embodiments provide laser a kind of inside the optical module and with encapsulating structure
Device, the laser include：Base 302, base encapsulating shell 200, multiple pins 303.
Wherein the laser with encapsulating structure is connected by multiple pins 303 with connector 204, multiple pins 303
It is fixed on through the hole circle on connector on connector 204, as shown in figure 4, wherein, described in each in multiple pins 303
One end of pin 303 pass through the base encapsulating shell 301, and the multiple pin holes being provided with by the base 302 are installed
In the base 302, and each described pin 303 in multiple pins 303 is connected with the laser module 401.
As shown in figure 5, a kind of structure chart of laser of the embodiment of the present invention, the laser also include：On base 302
Laser module 401, the first optoisolator 400.
Wherein the first optoisolator 400 is installed on the base 302, and in the base encapsulating shell 301；Wherein
The light hole light inlet of one optoisolator 400 aligns so that the laser module 401 to be sent out with the luminous point that goes out of the laser module 401
The light penetrated introduces the light hole.
Laser module 401 in the embodiment of the present invention on base 302 go out luminous point and be installed on base 302 first light every
From the clearance hole light inlet alignment of device 400, the light that laser module 401 is launched introduces the light hole of isolator, and then passes through
Light hole is transmitted into outside base encapsulating shell 301, then the optical fiber in penetrating mirror is transferred to the outside of system.Along laser 200
Go out light path, due to going out after luminous point to be provided with the first optoisolator 400 in laser module 401, therefore, sent out in optics module
The laser gone out passes through after optoisolator, can produce reflected light due to different reasons in the follow-up light path of optical module, but
This part reflected light can not return to the inside of laser module 401, because being a kind of only permission Unidirectional light in the first isolator 400
The Passive Optical Components passed through, the direction of light is limited, make light can only one direction transmission, therefore inside laser module 401
Self-coupling effect will not be produced, improves the stability of system.
Optionally, above-mentioned base 302, which is provided with, is used to limit between the first optoisolator 400 and laser module 401 relatively
The position-limit mechanism of position.
Due to the interaction of magnetic force between the first optoisolator 400 and laser module 401 be present, cause what can not be stablized
The light hole light inlet of the first optoisolator 400 is set to be alignd with the luminous point that goes out of laser module 401, therefore, above-mentioned base 302 is provided with
Position-limit mechanism can overcome the interaction that magnetic force between the first optoisolator 400 and laser module 401 be present, and then effectively
Avoid between first optoisolator 400 and the laser module 401 because of magneticaction and caused by inconsistent phenomenon, ensure the
Aligning accuracy between one optoisolator 400 and the laser module 401.
The first optoisolator 400 in above-described embodiment can have diversified forms, optionally, above-mentioned first optoisolator
400 can be the optoisolator of block structure, it is, of course, also possible to be the optoisolator of optical-fiber type structure, the light of waveguide type structure
Isolator.
Certainly, in above-mentioned laser the first optoisolator 400 preferably using the optoisolator with block structure.
In one of which implementation, above-mentioned position-limit mechanism can include the groove being arranged on base 302, wherein first
Optoisolator 400 is limited in the groove.The shape of its further groove is determined by the shape of the first optoisolator 400.
Such as first the shape of optoisolator 400 can be cuboid, then the shape of groove also with the first optoisolator
400 size identical cuboids；Or the cuboid identical, highly different from the length and width of the first optoisolator 400, wherein height can be with
Height smaller than the height of the first optoisolator 400, can also be more optically isolated than first is big；Or with the width of the first optoisolator 400
Different, length height identical cuboid, wherein width are bigger than the width of isolator；Or with the width of the first optoisolator 400
It is highly identical, the different cuboid of length；Or the cuboid that length, width and height are all different.
Wherein, the first optoisolator 400 can also have various shapes, such as cylindrical, trapezoidal etc.；First optoisolator
Groove corresponding to 400 any shape is also identical with any shape identical with first optoisolator 400, size
And/or different shape.But all meet that the first optoisolator 400 can be fixed in groove, and can ensure the first light every
It can be limited in groove from device 400 and the light hole light inlet of the first optoisolator 400 and laser module 401 go out luminous point
Alignment.
Optionally, in order to allow the first optoisolator 400 to be more firmly fixed in groove, there is photosystem higher
Reliability, the first optoisolator 400 are Nian Jie with the inner surface of the groove.
Such as first optoisolator 400 bottom it is Nian Jie with bottom portion of groove；The side wall of first optoisolator 400 and groove
Side wall is bonded, wherein can be bonded side can also be bonded both sides；First optoisolator 400 and the bottom of groove and side wall are all viscous
Connect.
Certainly, in order to allow the first optoisolator 400 to be more firmly fixed in groove, make photosystem can with higher
By property, also a variety of modes can be such that the first optoisolator 400 is fixed in groove, this illustration that just differs.
Wherein, bonding between the first optoisolator 400 and groove inner surface is realized by transparent optical cement, transparent optical
Glue is mainly 323LP glue.Light transmission rate height, the cementing strength of wherein transparent optical cement are good, can solidify under room temperature or medium temperature,
And there is the features such as cure shrinkage is small.The wherein active validity period length of 323LP glue, it is also applied to semiconductor, optical fiber, medical treatment etc.
Numerous industries.
The embodiment of the present invention additionally provides a kind of optical module, and the optical module includes lens, the optical fiber being installed in lens, also
Any one laser including above-mentioned introduction, the laser are installed on the lens.
Optionally, in optical module, second optoisolator is provided between lens and optical fiber.
Wherein, the second optoisolator is installed between lens and optical fiber, is avoided laser and is entered optical fiber mistake in Lens Coupling
Caused reflected light is returned in lens in journey, and the optical effect of lens is impacted, so as to further improve optical mode
The stability of block work.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
1. a kind of laser, including：Base, base encapsulating shell and multiple pins；The base is provided with laser module, the pipe
Seat is provided with multiple pin holes, and one end of each pin is installed through the base encapsulating shell and by the pin hole
In the base, and each described pin is connected with the laser module, it is characterised in that also including the first optoisolator,
First optoisolator is installed on the base and in the base encapsulating shell, wherein, first optoisolator
Light hole light inlet aligns with the light introducing thang-kng for launching the laser module with the luminous point that goes out of the laser module
Hole.
2. laser as claimed in claim 1, it is characterised in that the base is provided with optically isolated for limiting described first
The position-limit mechanism of relative position between device and the laser module.
3. laser as claimed in claim 2, it is characterised in that the position-limit mechanism is recessed on the base including being arranged at
Groove, first optoisolator are limited in the groove.
4. laser as claimed in claim 3, it is characterised in that the inner surface of first optoisolator and the groove glues
Connect.
5. laser as claimed in claim 4, it is characterised in that the inner surface of first optoisolator and the groove it
Between pass through transparent optical gluing knot.
6. laser as claimed in claim 3, it is characterised in that first optoisolator has cuboid block structure.
7. a kind of optical module, including lens, the optical fiber for being installed on the lens；Characterized in that, also including such as claim 1~
Laser described in 6 any one, the laser are installed on the lens.
8. optical module as claimed in claim 7, it is characterised in that it is optically isolated that second is provided between the lens and the optical fiber
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145275.4A CN107884883A (en) | 2017-11-17 | 2017-11-17 | A kind of laser and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145275.4A CN107884883A (en) | 2017-11-17 | 2017-11-17 | A kind of laser and optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107884883A true CN107884883A (en) | 2018-04-06 |
Family
ID=61777211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711145275.4A Pending CN107884883A (en) | 2017-11-17 | 2017-11-17 | A kind of laser and optical module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107884883A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038209A (en) * | 2018-08-29 | 2018-12-18 | Oppo（重庆）智能科技有限公司 | Wafer-level packaging method, laser die group, CCD camera assembly and electronic device |
| CN112234429A (en) * | 2020-12-10 | 2021-01-15 | 武汉乾希科技有限公司 | Multichannel laser transmitter and optical communication device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385123A (en) * | 2010-09-02 | 2012-03-21 | 瑞萨电子株式会社 | Optical transmission module and method for manufacturing optical transmission module |
| CN103605191A (en) * | 2013-11-27 | 2014-02-26 | 四川光恒通信技术有限公司 | Novel CWDM single-fiber dual-direction receiving and sending device and packaging method |
| CN205861942U (en) * | 2016-06-24 | 2017-01-04 | 东莞光智通讯科技有限公司 | A kind of optical device of LED direct projection cure package |
-
2017
- 2017-11-17 CN CN201711145275.4A patent/CN107884883A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385123A (en) * | 2010-09-02 | 2012-03-21 | 瑞萨电子株式会社 | Optical transmission module and method for manufacturing optical transmission module |
| CN103605191A (en) * | 2013-11-27 | 2014-02-26 | 四川光恒通信技术有限公司 | Novel CWDM single-fiber dual-direction receiving and sending device and packaging method |
| CN205861942U (en) * | 2016-06-24 | 2017-01-04 | 东莞光智通讯科技有限公司 | A kind of optical device of LED direct projection cure package |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038209A (en) * | 2018-08-29 | 2018-12-18 | Oppo（重庆）智能科技有限公司 | Wafer-level packaging method, laser die group, CCD camera assembly and electronic device |
| CN112234429A (en) * | 2020-12-10 | 2021-01-15 | 武汉乾希科技有限公司 | Multichannel laser transmitter and optical communication device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |
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| RJ01 | Rejection of invention patent application after publication |