WO2024116621A1 - Connecteur optique et module de transmission optique - Google Patents

Connecteur optique et module de transmission optique Download PDF

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Publication number
WO2024116621A1
WO2024116621A1 PCT/JP2023/037440 JP2023037440W WO2024116621A1 WO 2024116621 A1 WO2024116621 A1 WO 2024116621A1 JP 2023037440 W JP2023037440 W JP 2023037440W WO 2024116621 A1 WO2024116621 A1 WO 2024116621A1
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WO
WIPO (PCT)
Prior art keywords
optical
optical transmission
optical connector
transmission paths
axis correction
Prior art date
Application number
PCT/JP2023/037440
Other languages
English (en)
Japanese (ja)
Inventor
英 大鳥居
雄介 尾山
寛 森田
暢丈 岩瀬
賢二 佐藤
健 菊地
Original Assignee
ソニーセミコンダクタソリューションズ株式会社
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
Publication date
Application filed by ソニーセミコンダクタソリューションズ株式会社 filed Critical ソニーセミコンダクタソリューションズ株式会社
Publication of WO2024116621A1 publication Critical patent/WO2024116621A1/fr

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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
    • G02B6/26—Optical coupling means
    • 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
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • 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

Definitions

  • This technology relates to optical connectors and optical transmission modules.
  • optical transmission technology has been attracting attention, and there is a technique that achieves high capacity by arranging multiple optical transmission paths (optical fibers).
  • This technology requires an optical connector that can connect the arranged multiple optical transmission paths to the connection target.
  • Patent Document 1 discloses an optical connector suitable for connecting multiple optical transmission paths arranged two-dimensionally. This optical connector connects multiple optical transmission paths in parallel to the surface to be connected.
  • optical connectors can be mass-produced. This makes it difficult to position the optical axis of the optical transmission path with high precision on the order of microns.
  • the primary objective of this technology is to provide an optical connector and optical transmission module that reduce misalignment of the optical axis of the optical transmission path.
  • An optical connector for an array of optical transmission lines comprising: a main body portion that fixes each of the plurality of optical transmission paths; an optical axis correction unit that corrects the position of an optical axis of light transmitted through the plurality of optical transmission paths,
  • the main body portion is a light guiding section that guides light transmitted through the plurality of optical transmission paths; a holding portion that holds each of the plurality of optical transmission paths, the light guiding unit, the optical axis correction unit, and the holding unit are arranged in this order, the optical axis correction unit has a plurality of first insertion units into which the plurality of optical transmission paths are inserted,
  • the optical connector is provided, wherein the holding portion has a plurality of second insertion portions into which the plurality of optical transmission lines are inserted.
  • the first insertion portion A guide portion having a tapered shape such that an inner diameter thereof decreases as the guide portion moves away from the holding portion;
  • the optical transmission line may have a fixing portion whose inner diameter is substantially the same as an outer diameter of the optical transmission line.
  • the fixing portion may have an inner diameter smaller than an inner diameter of the second insertion portion.
  • An inner diameter of the guide portion on the holding portion side may be larger than an inner diameter of the second insertion portion.
  • the optical axis correction portion and the holding portion may be fixed to each other.
  • the main body may have a through hole formed between the light guiding portion and the holding portion, the through hole penetrating in a direction perpendicular to a direction in which the optical transmission path is inserted.
  • the optical axis correction section may be composed of one or more members having the plurality of first insertion sections.
  • the first insertion portion may be a through hole or a recess.
  • the optical axis correction portion may include a semiconductor material.
  • the optical axis correction portion may include Si.
  • Each of the first insertion portions and each of the second insertion portions correspond to each other,
  • the pitch of the plurality of first insertion portions and the pitch of the plurality of second insertion portions may be different from each other.
  • the length of the optical axis correction portion in the light traveling direction may be within a range of 100 ⁇ m to 600 ⁇ m.
  • the plurality of optical transmission lines may be arranged one-dimensionally.
  • the plurality of optical transmission paths may be arranged two-dimensionally.
  • the optical transmission line may be a single mode fiber.
  • the optical transmission line may be a multimode fiber.
  • the optical connector may further include a lens that refracts light transmitted through the plurality of optical transmission paths.
  • the optical connector may further include a hole for determining the position of the main body.
  • the optical connector A main body substrate; An optical element and an optical system are provided on the main body substrate,
  • the optical transmission module includes an optical connector and an optical element that are optically coupled to each other via the optical system.
  • a plurality of optical transmission lines arranged; and an optical connector for the plurality of optical transmission paths The optical connector comprises: a main body portion that fixes each of the plurality of optical transmission paths; an optical axis correction unit that corrects the position of an optical axis of light transmitted through the plurality of optical transmission paths,
  • the main body portion is a light guiding section that guides light transmitted through the plurality of optical transmission paths; a holding portion that holds each of the plurality of optical transmission paths, the light guiding unit, the optical axis correction unit, and the holding unit are arranged in this order, the optical axis correction unit has a plurality of first insertion units into which the plurality of optical transmission paths are inserted,
  • the optical transmission module is provided, wherein the holding portion has a plurality of second insertion portions into which the plurality of optical transmission paths are inserted.
  • This technology can provide an optical connector and an optical transmission module that reduce misalignment of the optical axis of the optical transmission path. Note that the effects described here are not necessarily limited to those described herein, and may be any of the effects described in this disclosure.
  • 1 is a schematic diagram showing a configuration example of an optical connector 1 according to an embodiment of the present technology.
  • 1 is a perspective view showing a configuration example of an optical connector 1 according to an embodiment of the present technology.
  • 1 is a front view showing a configuration example of a holding portion 14 according to an embodiment of the present technology.
  • 1 is a front view showing a configuration example of an optical axis correction unit 11 according to an embodiment of the present technology.
  • 1A to 1C are schematic diagrams illustrating an example of a procedure for arranging an optical axis correction unit 11 according to an embodiment of the present technology.
  • 1 is a front view showing a configuration example of an optical axis correction unit 11 according to an embodiment of the present technology.
  • 1 is a front view showing a configuration example of an optical axis correction unit 11 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical connector 1 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical connector 1 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical system 37 through an optical connector 1 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical system 37 through an optical connector 1 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical system 37 through an optical connector 1 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical system 37 through an optical connector 1 according to an embodiment of the present technology.
  • 1 is a schematic diagram showing a configuration example of an optical connector 1 and a main body substrate 3 according to an embodiment of the present technology.
  • top means the upper direction or upper side in the drawing
  • bottom means the lower direction or lower side in the drawing
  • left means the left direction or left side in the drawing
  • right means the right direction or right side in the drawing.
  • the same or equivalent elements or members are given the same reference numerals, and duplicate explanations are omitted.
  • the present technology provides an optical connector for an array of multiple optical transmission paths.
  • the optical connector includes a main body that fixes each of the multiple optical transmission paths, and an optical axis correction unit that corrects the position of the optical axis of light transmitted through the multiple optical transmission paths.
  • the main body includes a light guide that guides the light transmitted through the multiple optical transmission paths, and a holding unit that holds each of the multiple optical transmission paths.
  • the light guide, the optical axis correction unit, and the holding unit are arranged in this order.
  • the optical axis correction unit includes multiple first insertion units into which the multiple optical transmission paths are inserted.
  • the holding unit includes multiple second insertion units into which the multiple optical transmission paths are inserted.
  • FIG. 1 is a schematic diagram showing an example of the configuration of an optical connector 1 according to an embodiment of the present technology.
  • the optical connector 1 is an optical connector for an array of multiple optical transmission paths 2.
  • the optical transmission paths 2 are arrayed from the front side to the back side of the figure.
  • the optical transmission paths 2 are arranged two-dimensionally. This allows the optical connector 1 to transmit and receive large amounts of data in a short period of time.
  • the optical transmission paths 2 may be arranged two-dimensionally or one-dimensionally.
  • the optical transmission paths 2 may be arranged in two stages, one above the other, as in this configuration example, or may be arranged in three or more stages.
  • the optical connector 1 includes a main body 12 and an optical axis correction unit 11.
  • the main body 12 fixes each of the multiple optical transmission paths 2.
  • the optical axis correction unit 11 corrects the position of the optical axis of the light transmitted through the multiple optical transmission paths 2.
  • the main body 12 has a light guiding section 13 and a holding section 14.
  • the light guiding section 13 guides light transmitted through the multiple optical transmission paths 2.
  • the holding section 14 holds each of the multiple optical transmission paths 2.
  • the light guiding section 13, optical axis correction section 11, and holding section 14 are arranged in this order.
  • the optical connector 1 further includes a lens 15 that refracts the light transmitted through the multiple optical transmission paths 2.
  • the lens 15 faces the main body substrate (not shown in FIG. 1).
  • the light guiding section 13 has a surface that is inclined with respect to the direction in which the optical transmission path 2 is inserted (left and right direction in the figure).
  • This surface for example, reflects light from the optical transmission path 2 toward the lens 15.
  • this surface for example, reflects light from the lens 15 toward the optical transmission path 2.
  • This surface can be a total reflection mirror, or a metal mirror formed with a thin film containing a highly light-reflecting material such as aluminum or stainless steel.
  • the angle of inclination of this surface can be, for example, 45 degrees or 50 degrees.
  • a reflective lens may be provided at the position on this surface where the light is reflected.
  • the material of the light-guiding section 13 is not particularly limited, but it is preferable that the material be highly light-transmitting and light-resistant.
  • PPS polyphenylene sulfide
  • Lens 15 for example, converts the light from optical transmission path 2 into parallel light and emits it to the main substrate. Alternatively, lens 15 focuses the parallel light from the main substrate.
  • the diameter of lens 15 can be, for example, 240 ⁇ m.
  • the main body 12 further includes a reinforcing section 16 to prevent deformation of the light guide section 13 due to the application of force to the light guide section 13.
  • the optical axis correction unit 11 has a plurality of first insertion portions 111 into which the plurality of optical transmission paths 2 are respectively inserted.
  • the holding unit 14 has a plurality of second insertion portions 141 into which the plurality of optical transmission paths 2 are respectively inserted.
  • the first insertion portion 111 and the second insertion portion 141 are through holes, but are not limited to this shape and may be, for example, a groove-like shape.
  • FIG. 2 is a perspective view showing an example of the configuration of an optical connector 1 according to one embodiment of the present technology. As shown in FIG. 2, optical transmission paths 2 arranged two-dimensionally are inserted into the optical connector 1.
  • the optical connector 1 includes a main body 12 and an optical axis correction unit 11.
  • the main body 12 includes a light guide unit 13 and a holding unit 14.
  • a dust-proof cover 17 is attached to the main body 12.
  • the optical axis correction unit 11 is preferably a separate component from the main body 12.
  • the optical axis correction unit 11 and the holding unit 14 are preferably fixed to each other.
  • the optical axis correction unit 11 and the holding unit 14 are aligned and bonded to each other. This allows the optical axis correction unit 11 to be attached to the main body 12, which is mass-produced by processing, for example, a resin material.
  • the optical axis correction unit 11 can correct the positional deviation of the optical axis that inevitably occurs in the holding unit 14 due to mass production.
  • the method for fixing the optical axis correction unit 11 and the holding unit 14 to each other is not particularly limited, and they may be glued or welded to each other, for example.
  • the material of the optical axis correction unit 11 is not particularly limited, but in order to form the first insertion unit 111 with high precision on the micron order, it is preferable that the optical axis correction unit 11 contains a semiconductor material and is manufactured by a MEMS (Micro Electro Mechanical Systems) process. In particular, it is preferable that the optical axis correction unit 11 contains Si.
  • the multiple first insertion units 111 of the optical axis correction unit 11 can be formed by a process such as photolithography.
  • the length t of the optical axis correction section 11 in the light propagation direction is within the range of 100 ⁇ m to 600 ⁇ m. If this length t is less than 100 ⁇ m, the strength of the optical axis correction section 11 is reduced and the optical axis correction section 11 becomes more susceptible to damage. If this length t is more than 600 ⁇ m, it becomes difficult to form the first insertion section 111 by a process such as photolithography.
  • the first insertion portion 111 has a guiding portion 112 and a fixing portion 113.
  • the guiding portion 112 is formed in a tapered shape so that the inner diameter becomes smaller as it moves away from the holding portion 14.
  • the inner diameter ⁇ C of the guiding portion 112 on the holding portion 14 side is larger than the inner diameter ⁇ A of the second insertion portion. This allows the optical transmission path 2 to be easily inserted without hitting and getting caught on the optical axis correction portion 11.
  • the inner diameter ⁇ B of the fixed portion 113 is approximately the same as the outer diameter of the optical transmission path 2.
  • the inner diameter ⁇ B of the fixed portion 113 is smaller than the inner diameter ⁇ A of the second insertion portion 141. This allows the fixed portion 113 to reliably fix the optical transmission path 2.
  • the main body 12 is preferably formed with a through hole 18 between the light guide 13 and the holder 14, penetrating in a direction perpendicular to the direction in which the optical transmission path 2 is inserted (the left-right direction in the figure) (the up-down direction in the figure).
  • the optical axis correction unit 11 can be inserted and fixed into this through hole 18.
  • the optical axis correction unit 11 when fixing the optical axis correction unit 11 to the holding unit 14, it is necessary to determine the position by sandwiching the optical axis correction unit 11 from above and below. If the optical axis correction unit 11 is supported only from above, the supporting member needs to have an adsorption structure or a region for adsorption to the optical axis correction unit 11. This causes a problem in that the sizes of the main body unit 12 and the optical axis correction unit 11 become large.
  • FIG. 3 is a front view showing an example of the configuration of the holding portion 14 according to one embodiment of the present technology.
  • the holding portion 14 has a plurality of second insertion portions 141 into which a plurality of optical transmission paths 2 are respectively inserted.
  • the inner diameter ⁇ A of the second insertion portions 141 is shown.
  • the pitch P2 of the second insertion portions 141 is shown.
  • the pitch P2 is the distance between the central axes of the optical transmission paths 2.
  • the pitch P2 can be, for example, 250 ⁇ m.
  • the holding section 14 has eight second insertion sections 141, but the number of second insertion sections 141 is not particularly limited. Also, because this figure is schematic, the second insertion sections 141 are spaced apart from each other, but the second insertion sections 141 may be adjacent to each other.
  • FIG. 4 is a front view showing an example of the configuration of the optical axis correction unit 11 according to one embodiment of the present technology.
  • the optical axis correction unit 11 has a plurality of first insertion portions 111 into which a plurality of optical transmission paths 2 are respectively inserted.
  • the inner diameter ⁇ B of the fixing portion 113 and the inner diameter ⁇ C of the guide portion 112 on the holding portion 14 side are shown.
  • the pitch P1 of the first insertion portions 111 is shown.
  • the pitch P1 is the distance between the central axes of the optical transmission paths 2.
  • the pitch P1 can be, for example, 250 ⁇ m. However, as described later, it is preferable that the pitch P1 and the pitch P2 are different from each other.
  • the optical axis correction unit 11 has eight first insertion parts 111, but the number of first insertion parts 111 is not particularly limited. Also, since this figure is schematic, the first insertion parts 111 are spaced apart from each other, but the first insertion parts 111 may be adjacent to each other.
  • the multiple first insertion sections 111 shown in FIG. 4 correspond to the multiple second insertion sections 141 shown in FIG. 3.
  • the optical transmission path 2 inserted from the second insertion section 141 located second from the left in the top row in the holding section 14 shown in FIG. 3 is inserted into the first insertion section 111 located second from the left in the top row in the optical axis correction section 11 shown in FIG. 4.
  • the pitch P1 of the multiple first insertion parts 111 and the pitch P2 of the multiple second insertion parts 141 are different from each other. This allows the first insertion parts 111 to correct the misalignment of the optical axis even if the second insertion parts 141 are misaligned due to mass production, causing a misalignment of the optical axis of the optical transmission path 2.
  • FIG. 5 is a schematic diagram showing an example of a procedure for placing the optical axis correction unit 11 according to one embodiment of the present technology.
  • FIG. 5A first, parallel light is emitted from a light source (not shown in FIG. 5) located at the bottom of the figure. Then, the position of the focal point is measured from the right side of the figure using a beam profiler or the like.
  • the optical axis correction unit 11 is manufactured with the first insertion portion 111 formed to match this focal point position.
  • the optical axis correction unit 11 is fixed to the holding unit 14. At this time, the position of the optical axis correction unit 11 is adjusted so that the amount of light passing through the first insertion unit 111 is maximized.
  • the optical transmission path 2 is inserted into the second insertion section 141 and the first insertion section 111.
  • the optical transmission path 2 may be a multimode fiber or a single mode fiber.
  • optical connector according to the first embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • the optical axis correction unit 11 is configured from one member having a plurality of first insertion parts 111.
  • the optical axis correction unit 11 may be configured from a plurality of members having a plurality of first insertion parts 111. This will be described with reference to Fig. 6.
  • Fig. 6 is a front view showing a configuration example of the optical axis correction unit 11 according to an embodiment of the present technology.
  • the optical axis correction unit 11 is composed of two members 11A and 11B having a plurality of first insertion portions 111.
  • the optical axis correction unit 11 is composed of two members, but it may be composed of three or more members.
  • the optical axis correction unit 11 When the data capacity transmitted by the optical connector 1 becomes very large, the number of optical transmission paths 2 to be inserted into the optical axis correction unit 11 becomes very large. In this case, if the optical axis correction unit 11 is composed of a single member, the area of the optical axis correction unit 11 becomes large and there is a risk of breakage. Therefore, if the optical axis correction unit 11 is composed of multiple members, it becomes easier to manufacture the optical connector 1.
  • optical connector according to the second embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • the first insertion portion 111 is a through hole.
  • the first insertion portion 111 may be a recess. This will be described with reference to Fig. 7.
  • Fig. 7 is a front view showing a configuration example of the optical axis correction unit 11 according to an embodiment of the present technology.
  • the first insertion portion 111 is a recess. A portion of this recess is tapered as in the above embodiment. Therefore, just like in the embodiment in which the first insertion portion 111 is a through hole, the inner diameter ⁇ B of the fixing portion 113 and the inner diameter ⁇ C of the guide portion 112 on the holding portion 14 side are shown.
  • optical connector according to the third embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • FIG. 8 is a schematic diagram showing a configuration example of the optical connector 1 according to one embodiment of the present technology.
  • multiple optical transmission paths 2 inserted into the optical connector 1 are arranged one-dimensionally. If the data capacity transmitted by the optical connector 1 is small, the optical transmission paths 2 may be arranged one-dimensionally.
  • optical connector according to the fourth embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • the optical connector 1 may further include a hole for determining the position of the main body 12. This will be described with reference to Fig. 9.
  • Fig. 9 is a schematic diagram showing a configuration example of the optical connector 1 according to an embodiment of the present technology.
  • the optical connector 1 is connected to the main substrate 3.
  • the main substrate 3 includes a transparent substrate 31, an optical element 32, and a driving element 33.
  • An optical element 32 is disposed on the back side of the transparent substrate 31.
  • the optical element 32 can be a light-emitting element or a light-receiving element.
  • the main substrate 3 has a front surface and a back surface.
  • the back surface of the main substrate 3 can be connected to the motherboard 42 via bumps 35.
  • the main substrate 3 itself may be the motherboard.
  • the transparent substrate 31 is disposed between the optical connector 1 and the main substrate 3.
  • the transparent substrate 31 has an optical system (e.g., a lens) 37 formed opposite the optical connector 1.
  • the optical connector 1 has holes 19A and 19B for determining the position of the main body 12.
  • a positioning pin 39A is inserted into the positioning hole 19A.
  • a positioning pin 39B is inserted into the positioning hole 19B. This positions the main body board 3 and the optical connector 1 opposite each other and fixed so that they can be inserted and removed.
  • the holes 19A and 19B allow the positions of the lens 15, optical system 37, and optical element 32 to be determined with high precision.
  • the material of the pins 39A, 39B is preferably a metal such as brass, copper, or aluminum, but may also be a resin material molded with high precision.
  • a plurality of the pins 39A, 39B are provided around the transparent substrate 31 on the main substrate 3. It is preferable that four or more of the pins 39A, 39B are arranged in positions surrounding the lens 15 and the optical system 37. However, if the optical transmission path 2 is arranged in a line in one dimension, two of the pins 39A, 39B may be arranged in positions sandwiching the optical system 37 arranged in a line.
  • the lens 15 of the optical connector 1 is preferably made of an injected resin material that is transparent to the propagating optical signal. Since a highly accurate positional relationship is required between the lens 15 and the holes 19A and 19B, it is preferable that the lens 15 and the holes 19A and 19B are integrally molded.
  • the optical element 32 is disposed between the rear surface of the transparent substrate 31 and the main substrate 3.
  • the optical element 32 is electrically connected to the main substrate 3 via bumps 34A, wiring 38A, bumps 34B, and wiring 38B.
  • the driving element 33 is disposed between the optical connector 1 and the surface of the main substrate 3.
  • the driving element 33 is electrically connected to the main substrate 3 via the bump 34C and the wiring 38C.
  • bumps 34A, 34B, 34C, and 35 are solder bumps.
  • Wiring 38A, wiring 38B, and wiring 38C may have not only an electrical connection but also a function of transmitting heat generated by transparent substrate 31 and optical element 32 serving as a heat source element to main substrate 3.
  • the transparent substrate 31 is transparent to the wavelength of light used in optical transmission.
  • the transparent substrate 31 may be of any type as long as it is transparent to the wavelength of the optical signal propagating through the optical connector 1.
  • the transparent substrate 31 may include materials such as resin, glass, or quartz.
  • optical connector according to the fifth embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • the optical connector 1 can be mounted on a main body substrate via an optical system that transforms light transmitted through the optical transmission path 2.
  • This optical system can be, for example, a lens, a diffraction grating, a metasurface having a photonic structure, a reflecting mirror, a wavelength selective transmission film (for example, a bandpass filter, etc.), or the like.
  • this technology provides an optical transmission module that includes an optical connector 1 and a main body substrate, an optical element and an optical system are mounted on the main body substrate, and the optical connector and the optical element are optically coupled to each other via the optical system.
  • the structure of this optical system can be, for example, parallel light coupled to an optical system (such as a lens) of the main body substrate on which the optical connector 1 is mounted, focused light coupled, diffusely coupled, or multi-wavelength coupled.
  • an optical system such as a lens
  • FIG. 10 is a schematic diagram showing an example of the configuration of an optical system 37 through an optical connector 1 according to an embodiment of the present technology.
  • the optical connector 1 is attached to the main substrate 3 via an optical system 37.
  • the main substrate 3 includes a lens that is the optical system 37, an optical element 32, and solder bumps 34.
  • the optical connector 1 and the main body board 3 are coupled to each other via the optical system 37 to provide parallel light.
  • the optical element 32 can be a light-emitting element or a light-receiving element.
  • the optical system 37 converts the light emitted by the optical element 32 into parallel light.
  • the lens 15 provided in the optical connector 1 collects this parallel light, and the light-guiding unit 13 guides it to the optical transmission path 2.
  • the optical element 32 is a light-receiving element
  • the light-guiding unit 13 guides the light emitted by the optical transmission path 2 to the lens 15.
  • the lens 15 converts the light into parallel light.
  • the optical system 37 provided in the main body board 3 collects this parallel light, and the optical element 32 receives it.
  • FIG. 11 is a schematic diagram showing an example of the configuration of an optical system 37 through the optical connector 1 according to one embodiment of the present technology.
  • the optical connector 1 and the main body substrate 3 are optically coupled to each other via the optical system 37.
  • the lens 15 of the optical connector 1 and the optical system 37 of the main body substrate 3 focus light on each other.
  • FIG. 12 is a schematic diagram showing an example of the configuration of the optical system 37 through the optical connector 1 according to one embodiment of the present technology.
  • the optical connector 1 is attached to the main substrate 3 via an optical system 37.
  • the main substrate 3 can be, for example, a silicon substrate.
  • the optical system 37 can be, for example, a diffraction grating or a metasurface.
  • FIG. 13 is a schematic diagram showing an example of the configuration of the optical system 37 through the optical connector 1 according to one embodiment of the present technology.
  • the optical connector 1 and the main board 3 are multi-wavelength coupled to each other.
  • the wavelength of the light transmitted through the first optical transmission path 2 and the wavelength of the light transmitted through the second optical transmission path 2 are different from each other.
  • FIG. 14 is a schematic diagram showing an example of the configuration of the optical connector 1 and the main body substrate 3 according to one embodiment of the present technology.
  • the main substrate 3 includes, for example, an optical element 32 and a circuit element 40.
  • the optical connector 1 is fixed to the main substrate 3 by a coupling portion 41.
  • the method for fixing the optical connector 1 and the main substrate 3 to each other is not particularly limited, and they may be glued to each other or welded to each other, for example.
  • optical transmission module according to the sixth embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • the present technology provides an optical transmission module comprising: a plurality of optical transmission paths arranged; and an optical connector for the plurality of optical transmission paths, wherein the optical connector comprises a main body portion that fixes each of the plurality of optical transmission paths; and an optical axis correction portion that corrects the position of an optical axis of light transmitted through the plurality of optical transmission paths, wherein the main body portion has a light guiding portion that guides light transmitted through the plurality of optical transmission paths; and a holding portion that holds each of the plurality of optical transmission paths, wherein the light guiding portion, the optical axis correction portion, and the holding portion are arranged in this order, the optical axis correction portion has a plurality of first insertion portions into which the plurality of optical transmission paths are inserted, and the holding portion has a plurality of second insertion portions into which the plurality of optical transmission paths are inserted.
  • the optical transmission module 10 includes a plurality of optical transmission paths 2 arranged in an array and an optical connector 1 for the plurality of optical transmission paths 2.
  • the optical connector 1 includes a main body 12 that fixes each of the multiple optical transmission paths 2, and an optical axis correction unit 11 that corrects the position of the optical axis of the light transmitted through the multiple optical transmission paths 2.
  • the main body 12 has a light guide section 13 that guides light transmitted through the multiple optical transmission paths 2, and a holding section 14 that holds each of the multiple optical transmission paths 2.
  • the light guide section 13, optical axis correction section 11, and holding section 14 are arranged in this order.
  • the optical axis correction unit 11 has a plurality of first insertion sections 111 into which a plurality of optical transmission paths 2 are inserted.
  • the holding unit 14 has a plurality of second insertion sections 141 into which a plurality of optical transmission paths 2 are inserted.
  • optical transmission module according to the seventh embodiment of the present technology can be applied to other embodiments of the present technology, unless there is a particular technical contradiction.
  • An optical connector for an array of optical transmission lines comprising: a main body portion that fixes each of the plurality of optical transmission paths; an optical axis correction unit that corrects the position of an optical axis of light transmitted through the plurality of optical transmission paths,
  • the main body portion is a light guiding section that guides light transmitted through the plurality of optical transmission paths; a holding portion that holds each of the plurality of optical transmission paths, the light guiding unit, the optical axis correction unit, and the holding unit are arranged in this order, the optical axis correction unit has a plurality of first insertion units into which the plurality of optical transmission paths are inserted,
  • the holding portion has a plurality of second insertion portions into which the plurality of optical transmission lines are inserted.
  • the first insertion portion A guide portion formed in a tapered shape so that an inner diameter becomes smaller as the guide portion moves away from the holding portion; and a fixing portion having an inner diameter substantially equal to an outer diameter of the optical transmission line.
  • the inner diameter of the fixing portion is smaller than the inner diameter of the second insertion portion.
  • the inner diameter of the guide portion on the holding portion side is larger than the inner diameter of the second insertion portion.
  • the optical axis correction unit and the holding unit are fixed to each other.
  • the optical axis correction unit is composed of one or more members having the plurality of first insertion portions.
  • the first insertion portion is a through hole or a recess.
  • the optical axis correction unit includes a semiconductor material.
  • the optical axis correction unit includes Si.
  • the optical connector according to any one of [1] to [9].
  • Each of the plurality of first insertion portions corresponds to each of the plurality of second insertion portions, The pitch of the first insertion portions and the pitch of the second insertion portions are different from each other.
  • the length of the optical axis correction unit in the light traveling direction is within a range of 100 ⁇ m to 600 ⁇ m.
  • the optical connector according to any one of [1] to [11].
  • the plurality of optical transmission paths are arranged one-dimensionally.
  • the plurality of optical transmission paths are arranged two-dimensionally.
  • the optical transmission line is a single mode fiber.
  • the optical transmission line is a multimode fiber.
  • the optical fiber further includes a lens that refracts light transmitted through the plurality of optical transmission paths.
  • [18] Further comprising a hole for determining the position of the main body.
  • the optical connector comprises: a main body portion that fixes each of the plurality of optical transmission paths; an optical axis correction unit that corrects the position of an optical axis of light transmitted through the plurality of optical transmission paths,
  • the main body portion is a light guiding section that guides light transmitted through the plurality of optical transmission paths; a holding portion that holds each of the plurality of optical transmission paths, the light guiding unit, the optical axis correction unit, and the holding unit are arranged in this order, the optical axis correction unit has a plurality of first insertion units into which the plurality of optical transmission paths are inserted, the holding portion has a plurality of second insertion portions into which the plurality of optical transmission paths are inserted.
  • optical connector 10 optical transmission module 11 optical axis correction section 111 first insertion section 112 guiding section 113 fixing section 12 main body section 13 light guiding section 14 holding section 141 second insertion section 15 lens 16 reinforcing section 17 cover 18 through hole 19A, 19B hole section 2 optical transmission path 3 main body substrate 31 transparent substrate 32 optical element 33 driving element 37 optical system 41 coupling section

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

Abstract

Le but de la présente invention est de réduire l'écart de position de l'axe optique d'une ligne de transmission optique.　La présente technologie concerne un connecteur optique (1) pour une pluralité de lignes de transmission optique agencées (2), le connecteur optique (1) comprenant : une partie de corps principal (12) qui fixe chacune de la pluralité de lignes de transmission optique (2) ; et une partie de correction d'axe optique (11) qui corrige la position de l'axe optique de lumière à transmettre par l'intermédiaire de chacune de la pluralité de lignes de transmission optique (2), la partie de corps principal (12) ayant une partie de guidage de lumière (13) qui guide la lumière à transmettre par l'intermédiaire de la pluralité de lignes de transmission optique (2), et une partie de maintien (14) qui maintient chacune de la pluralité de lignes de transmission optique (2), la partie de guidage de lumière (13), la partie de correction d'axe optique (11) et la partie de maintien (14) sont disposées dans cet ordre, la partie de correction d'axe optique (11) a une pluralité de premières parties d'insertion (111) dans lesquelles la pluralité de lignes de transmission optique (2) sont insérées, et la partie de maintien (14) a une pluralité de secondes parties d'insertion (141) dans lesquelles la pluralité de lignes de transmission optique (2) sont insérées.
PCT/JP2023/037440 2022-12-02 2023-10-16 Connecteur optique et module de transmission optique WO2024116621A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022193420 2022-12-02
JP2022-193420 2022-12-02

Publications (1)

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WO2024116621A1 true WO2024116621A1 (fr) 2024-06-06

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08503079A (ja) * 1992-08-20 1996-04-02 ヒューレット−パッカード・カンパニー 光学装置
JP2004045838A (ja) * 2002-07-12 2004-02-12 Seiko Instruments Inc 光デバイスおよび光軸調整機構
US20040052476A1 (en) * 2000-12-28 2004-03-18 Patrice Houmault Method and device for mechanically fixing an optical component
US6773170B1 (en) * 1999-08-27 2004-08-10 Goran Dimitrov Georgiev Method and device for connection and adjustment of optical units: elements, modules, devices, and systems
JP2009093041A (ja) * 2007-10-11 2009-04-30 Sumitomo Electric Ind Ltd 光モジュール
JP2016218121A (ja) * 2015-05-15 2016-12-22 日立金属株式会社 光トランシーバ
JP2017134282A (ja) * 2016-01-28 2017-08-03 ソニー株式会社 光コネクタ及び光伝送モジュール

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08503079A (ja) * 1992-08-20 1996-04-02 ヒューレット−パッカード・カンパニー 光学装置
US6773170B1 (en) * 1999-08-27 2004-08-10 Goran Dimitrov Georgiev Method and device for connection and adjustment of optical units: elements, modules, devices, and systems
US20040052476A1 (en) * 2000-12-28 2004-03-18 Patrice Houmault Method and device for mechanically fixing an optical component
JP2004045838A (ja) * 2002-07-12 2004-02-12 Seiko Instruments Inc 光デバイスおよび光軸調整機構
JP2009093041A (ja) * 2007-10-11 2009-04-30 Sumitomo Electric Ind Ltd 光モジュール
JP2016218121A (ja) * 2015-05-15 2016-12-22 日立金属株式会社 光トランシーバ
JP2017134282A (ja) * 2016-01-28 2017-08-03 ソニー株式会社 光コネクタ及び光伝送モジュール

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