WO2016155381A1 - Ensemble à réseaux de lentilles optiques à plusieurs voies intégré pour module émetteur-récepteur optique parallèle - Google Patents

Ensemble à réseaux de lentilles optiques à plusieurs voies intégré pour module émetteur-récepteur optique parallèle Download PDF

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Publication number
WO2016155381A1
WO2016155381A1 PCT/CN2015/099428 CN2015099428W WO2016155381A1 WO 2016155381 A1 WO2016155381 A1 WO 2016155381A1 CN 2015099428 W CN2015099428 W CN 2015099428W WO 2016155381 A1 WO2016155381 A1 WO 2016155381A1
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WO
WIPO (PCT)
Prior art keywords
lens
optical
lens array
transceiver module
base
Prior art date
Application number
PCT/CN2015/099428
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English (en)
Chinese (zh)
Inventor
张尔康
徐红春
王雨飞
曹芳
Original Assignee
武汉电信器件有限公司
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Filing date
Publication date
Application filed by 武汉电信器件有限公司 filed Critical 武汉电信器件有限公司
Publication of WO2016155381A1 publication Critical patent/WO2016155381A1/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
    • 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
    • G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections

Definitions

  • the invention belongs to the field of optical communication and relates to an integrated multi-path optical lens array assembly for a parallel optical transceiver module.
  • Parallel optical modules have been favored by the industry due to their large communication capacity and low energy consumption, and have developed rapidly in recent years.
  • Parallel optical modules refer to one-to-one transmission of multi-channel lasers and multi-channel detectors in multiple modules through multiple fibers.
  • the low power consumption of device integration and miniaturization allows parallel optical modules to generate and dissipate much less heat than multiple discrete devices.
  • Parallel optical modules rely primarily on high-density integration of optics.
  • QSFP Quad Small Form-factor Pluggable 4x10G hot-swappable optical transceiver module
  • CXP 120Gb/s 12x Small Form-factor Pluggable 12x10G hot-swappable optical transceiver module
  • the QSFP 4-channel pluggable interface has a transfer rate of up to 40 Gbps and supports four channels at 10 Gbps per channel at the same port size of the XFP (10G Small Form Factor Pluggable, 10G single-channel hot-swappable optical transceiver module). Data transmission, so the transmission density of QSFP can reach 4 times that of XFP products and 4 times that of SFP+ products.
  • the existing QSFP SR4 short-distance transmission module integrates four-way transmission and four-way reception, and the optical port is realized by a standard 12-core MPO (Multi-fiber PullOff multimode fiber connector) standard array fiber.
  • the VECSEL laser dies are surface-emitting, and the exit beam and the incident light are deflected by 90 degrees.
  • the current common solution is to use the lens to realize the optical path deflection. In order to realize the optical signal transmission from the laser through the lens to the optical fiber, one end is required.
  • the fiber array of the MT optical interface is coupled to the lens array.
  • the existing coupling method is passively aligned with the guide hole on the fiber joint of the MT (mechanical butt transmission multi-core connector (usually 12 core)) through the plastic guide pin on the lens base, and then glue or other machinery The method fixes the MT fiber connector to the lens base. Because the plastic guide pin has low strength and length cannot be made long, and the existing lens base itself cannot be fixed with the MT fiber joint, the fixing between the lens base and the MT fiber joint is not stable, and the later adhesive process is also complicated.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide an integrated multi-path optical lens array assembly for a parallel optical transceiver module that is firmly connected and has a simple post-production process.
  • the invention provides an integrated multi-path optical lens array assembly for a parallel optical transceiver module for docking with an MT fiber connector, comprising a lens base and three sets of lens arrays disposed inside the lens base, the lens base A hook is disposed on each side of the mating end of the mating end of the MT fiber connector; two metal guide pins are disposed inside the lens base, and two metal guide pins protrude from the lens base and the MT fiber joint a docking end face, the metal pin is fixedly connected to the MT fiber connector when the lens base is docked with the MT fiber connector; the three lens arrays are an A lens array, a B lens array, and a C lens array The B lens array is located on the butt end face, the A lens array and the C lens array are located on the same side of the lens base; the lens base is internally provided with an A optical interface, a B optical interface, and a C optical interface. Wherein, the A-optical interface total reflection critical angle is less than 45°.
  • the lens base is made of optical plastic.
  • two through-holes are formed in the lens base, and the two metal guide pins are respectively inserted into the through-holes.
  • the A lens array, the B lens array, and the C lens array each include 4-12 lenses.
  • the lens has a face shape of a spherical shape or an aspherical shape.
  • the two hooks are symmetrically disposed and are fastened on opposite sides of the MT fiber connector.
  • the lens base is integrally formed with three sets of lens arrays.
  • the integrated multi-channel optical lens array assembly for parallel optical transceiver module Compared with the conventional QSFP parallel transmission optical component, the integrated multi-channel optical lens array assembly for parallel optical transceiver module provided by the invention has the following beneficial effects: the metal guide pin makes the connection between the lens base and the MT fiber connector more firm; The hook can be used to clamp the MT fiber connector, so there is no need to use the clamp fixture and the MT fiber connector in the subsequent dispensing process and the glue curing process, which simplifies the process and improves the product reliability; the solution is simple and easy, and is suitable for mass production. Can effectively improve the yield and reduce costs.
  • FIG. 1 is an integrated multi-channel optical lens array group for a parallel optical transceiver module according to an embodiment of the present invention
  • 2 is an integrated multi-path optical lens array group for a parallel optical transceiver module according to an embodiment of the present invention.
  • FIG. 3 is an integrated multi-path optical lens array group for a parallel optical transceiver module according to an embodiment of the present invention.
  • FIG. 4 is an integrated multi-path optical lens array group for a parallel optical transceiver module according to an embodiment of the present invention.
  • FIG. 5 is a third perspective application diagram of an integrated multi-path optical lens array assembly for a parallel optical transceiver module according to an embodiment of the present invention.
  • an embodiment of the present invention provides an integrated multi-path optical lens array assembly for a parallel optical transceiver module for docking with an MT fiber connector 2, including a lens base 1 and a lens base. 1 internal three sets of lens arrays.
  • the lens mount 1 is made of optical plastic. The transmittance of the three sets of lens arrays all meet the requirements of the QSFP package.
  • the lens base 1 is integrally formed with three sets of lens arrays, that is, processed by injection molding.
  • a hook 11 is disposed on each side of the mating end of the lens base 1 and the MT fiber connector 2, and in the preferred embodiment, the two hooks 11 are symmetrically disposed. And being fastened to opposite sides of the MT fiber connector 2.
  • the connection between the lens base 1 and the MT fiber connector 2 is stabilized, that is, the integrated multi-channel optical lens array assembly for the parallel optical transceiver module is ensured to be connected with the MT fiber.
  • the connection of the head 2 is stable, thereby ensuring stable optical path transmission between the three sets of lens arrays and the mating connector.
  • the lens base 1 is internally provided with two metal guide pins 12, and the two metal guide pins 12 are respectively protruded from the mating end faces of the lens base 1 and the MT fiber joint 2;
  • the metal pin 12 is connected and fixed to the MT fiber connector 2.
  • the lens base 1 is provided with two through holes, and the two metal guide pins 12 are respectively inserted into the through holes.
  • the size of the metal guide pin 12 meets the requirements for universal MT connector switching.
  • the metal guide pin can effectively solve the problem of low strength and low hardness of the plastic guide pin, and at the same time ensure the stability of the connection between the two.
  • the three sets of lens arrays are an A lens array (hereinafter referred to as A1-A12), a B lens array (hereinafter referred to as B1-B12), and a C lens array (hereinafter referred to as C1-C12).
  • the B lens array is located on the butt end face, and the A lens array and the C lens array are located on the same side of the lens base 1.
  • the A lens array includes 4-12 lenses, the B lens array includes 4-12 lenses, and the C lens array includes 4-12 lenses.
  • the lens has a spherical shape or a non-spherical shape, and functions as a beam shaping to ensure coupling efficiency.
  • the lens base 1 is internally provided with an A optical interface, a B optical interface and a C optical interface, wherein the A optical interface total reflection critical angle is less than 45°. Since the critical angle of total reflection of the A optical interface is less than 45°, the optical interface a is totally reflected by the incident light of 45°, thereby realizing the optical path bending function.
  • Each optical interface is directly formed directly inside the lens base 1.
  • the B optical interface faces the B lens array, the A lens array is located directly below the A optical interface, and the C lens array is located directly below the C optical interface.
  • the present invention is a specific example of a QSFP 40 Gbps module package (four-way transmission, four-way reception) in which the incident light energy is 1:1 divided.
  • B1-B4 are lenses corresponding to multimode fiber E1-E4 of MT adapter (referring to MT fiber connector 2)
  • B9-B12 is corresponding to multimode fiber E9-E12 of MT adapter.
  • lens As shown in FIG. 4, A1-A4 are lenses of the VCSEL chip array end, and A9-A12 are lenses of the PD array end.
  • C1-C4 are lenses of the linear array end of the MPD chip.
  • the principle of the light emitting part the VCSEL chip emits light with a divergence angle of 20-30°, which is shaped into parallel light after being shaped by the A1-A4 lens, and the optical path is bent by the A optical interface reflection, and then realized by the transflective glass.
  • Light energy segmentation The reflected light energy portion is focused by the lenses B1-B4 and coupled into the MPD, and the transmitted light energy portion is focused by the lenses C1-C4 and coupled into the E1-E4 channels of the multimode fiber of the MT connector.
  • Light receiving part principle MT adapter The transmitted light in the E9-E12 multimode fiber is shaped into parallel light by the C9-C12 lens, and the optical path is bent by the A optical interface reflection. The parallel light is then coupled into the PD chip array through the lens A9-A12.
  • the invention discloses an optical lens array and a lens holder assembly.
  • the integrated body can be processed by model injection molding, and integrates a plurality of collimating lens functions, and provides a cooperation scheme of a lens and an MT fiber joint.
  • the integrated multi-channel optical lens array assembly for parallel optical transceiver module provided by the invention has the following beneficial effects: the metal guide pin makes the connection between the lens base and the MT fiber connector more firm; The hook can be used to clamp the MT fiber connector, so there is no need to use the clamp fixture and the MT fiber connector in the subsequent dispensing process and the glue curing process, which simplifies the process and improves the product reliability; the solution is simple and easy, and is suitable for mass production. Can effectively improve the yield and reduce costs.

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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 ensemble à réseaux de lentilles optiques à plusieurs voies intégré qui est destiné à un module émetteur-récepteur optique parallèle, qui est prévu pour être couplé bout à bout à un connecteur de fibres optiques MT (2), et qui comprend une base de lentille (1) ainsi que trois groupes de réseaux de lentilles (A1-A12, B1-B12 et C1-C12). Les deux côtés de l'extrémité de couplage bout à bout de ladite base de lentille (1) qui vient en butée contre le connecteur de fibres optiques MT (2) sont respectivement munis d'une attache à crochet (11). Deux tiges de guidage en métal (12) se trouvent à l'intérieur de la base de lentille (1), ces deux tiges de guidage en métal (12) dépassent de la surface d'extrémité de couplage bout à bout de ladite base de lentille (1) qui vient en butée contre le connecteur de fibres optiques MT (2), et les tiges de guidage en métal (12) sont reliées à demeure au connecteur de fibres optiques MT (2). Les trois groupes de réseaux de lentilles sont respectivement des réseaux de lentilles A (A1-A12), des réseaux de lentilles B (B1-B12) et des réseaux de lentilles C (C1-C12). Les réseaux de lentilles B (B1-B12) se situent sur la surface d'extrémité de couplage bout à bout, et les réseaux de lentilles A (A1-A12) ainsi que les réseaux de lentilles C (C1-C12) se trouvent sur le même côté de la base de lentille (1). Une interface optique A, une interface optique B et une interface optique C se situent à l'intérieur de cette base de lentille (1). L'ensemble à réseaux de lentilles optiques à plusieurs voies intégré qui est destiné à un module émetteur-récepteur optique parallèle est relié solidement au connecteur de fibres optiques MT (2), il présente un processus de post-fabrication simple, et il convient à une production en série, de sorte que le rendement peut être efficacement amélioré et les coûts réduits.
PCT/CN2015/099428 2015-04-03 2015-12-29 Ensemble à réseaux de lentilles optiques à plusieurs voies intégré pour module émetteur-récepteur optique parallèle WO2016155381A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510156677.9 2015-04-03
CN201510156677.9A CN104765110A (zh) 2015-04-03 2015-04-03 用于并行光收发模块的集成多路光学透镜阵列组件

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WO2016155381A1 true WO2016155381A1 (fr) 2016-10-06

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WO (1) WO2016155381A1 (fr)

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CN104765110A (zh) * 2015-04-03 2015-07-08 武汉电信器件有限公司 用于并行光收发模块的集成多路光学透镜阵列组件
JP6510619B1 (ja) * 2017-11-16 2019-05-08 株式会社フジクラ フェルール構造体
CN110780391A (zh) * 2019-11-12 2020-02-11 杭州耀芯科技有限公司 一种光纤连接光学组件
CN114660723A (zh) * 2022-02-28 2022-06-24 中航光电科技股份有限公司 一种自浮动连接的并行无线光模块

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CN202083816U (zh) * 2011-05-03 2011-12-21 苏州旭创科技有限公司 用于宽带并行光学的光收发组件
CN202815278U (zh) * 2012-09-04 2013-03-20 开曼群岛商众达电子股份有限公司 光传导单元及光收发装置
US8961042B2 (en) * 2012-10-05 2015-02-24 Sintai Optical (Shenzhen) Co., Ltd. Optical coupling device
CN203084244U (zh) * 2012-12-28 2013-07-24 武汉电信器件有限公司 并行传输的光组件
US20150049986A1 (en) * 2013-08-16 2015-02-19 Hon Hai Precision Industry Co., Ltd. Optical coupling component with metal positioning rods and optical-electrical converting module having same
CN104422995A (zh) * 2013-08-20 2015-03-18 鸿富锦精密工业（深圳）有限公司 光耦合透镜及光电转换模块
CN104020538A (zh) * 2014-05-30 2014-09-03 深圳市易飞扬通信技术有限公司 光电耦合透镜组
CN104238027A (zh) * 2014-09-11 2014-12-24 武汉电信器件有限公司 分光透镜阵列元件
CN104765110A (zh) * 2015-04-03 2015-07-08 武汉电信器件有限公司 用于并行光收发模块的集成多路光学透镜阵列组件
CN204556914U (zh) * 2015-04-03 2015-08-12 武汉电信器件有限公司 用于并行光收发模块的集成多路光学透镜阵列组件

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