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Optical waveguide chip and PD array lens coupling device

A technology of array lens and coupling device, which is applied in the field of optical communication, can solve the problems of inability to use optical fiber group coupling, difficult operation, low production efficiency, etc., and achieves the effects of easier realization of assembly process, lower cost and simple structure

Active Publication Date: 2014-01-15
GUANGXUN SCI & TECH WUHAN
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Problems solved by technology

However, the use of double-lens coupling structure and the use of two lenses also increase additional costs, the optical path is more complicated, the operation is more difficult in the actual assembly process, and the production efficiency is lower; ② Chinese patent 200610125025.X, based on an inclined plane cylindrical lens The coupling structure shown in the high-efficiency coupling component of optical fiber and its manufacturing method is difficult to fix. Its cylindrical lens can only converge and compress the beam in one dimension, and cannot use optical fiber groups or multiple output optical waveguides and PD arrays. Coupling, because the light spot converged by the cylindrical lens is slender, and the light spot will irradiate the adjacent PD to generate crosstalk

Method used

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  • Optical waveguide chip and PD array lens coupling device
  • Optical waveguide chip and PD array lens coupling device
  • Optical waveguide chip and PD array lens coupling device

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] like figure 1 As shown, it is used for optical waveguide chip and PD array lens coupling structure, including waveguide chip 101, PD array 102, lens array 103, reflective prism 104, cover glass 105, lens holder 106, heat sink 107, waveguide gasket 108, Substrate 109. figure 1The shown heat sink 107 is located on the substrate 109, and the PD array 102 is pasted on the heat sink 107 by conductive glue. The heat sink 107 is provided with a lens holder 106. The lens holder 106 is a combination of two holders, and the two holders are divided into two parts. They are arranged on both sides of the PD array 102; the lens holder 106 is erected with a strip-shaped lens array 103, and the lens array 103 is first fixed on the lens holder 106, and the material of the lens holder 106 is glass. Paste the lens array 103 with the lens holder 106 directly above the PD array ...

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Abstract

The invention discloses an optical waveguide chip and PD array lens coupling device which comprises a waveguide chip (101), a PD array (102), a heat sink (107), a waveguide gasket (108), a substrate (109) and another waveguide gasket (108). The heat sink (107) is arranged on the substrate (109). The PD array (102) is arranged on the heat sink (107). The waveguide chip (101) is arranged on the waveguide gaskets (108). A reflecting prism (104) is arranged in a light path between the waveguide chip (101) and the PD array (102). Output light of the waveguide chip (101) is reflected by the reflecting prism (104) and is received by the PD array (102). A lens array (103) which has a converging effect is arranged in the light path between the waveguide chip (101) and the PD array (102). According to the device, cost is lowered, structure is simple, the assembling technology is easy to achieve, and photoelectric conversion efficiency is very high.

Description

[0001] technical field [0002] The invention relates to a coupling device applied to an optical module of optical communication technology, in particular to an optical coupling device with a large tolerance between the optical transmission medium (optical fiber, optical waveguide) and the optical semiconductor element (semiconductor laser, photodiode) in the optical module , The invention belongs to the field of optical communication. [0003] Background technique [0004] With the emergence of smart devices, cloud computing, and the Internet of Things, the demand for network bandwidth continues to rise, and it is imminent to increase the system transmission rate, and 100G and higher rate transmission systems have been applied. At present, the 100G dense wavelength division multiplexing (Dense Wavelength Division Multiplexing, DWDM) optical transmission system adopts coherent reception dual-polarization quadrature phase shift keying (DP-QPSK) technology. Compared with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/4204G02B6/4214G02B6/43G02B6/4269G02B6/325G02B6/4206
Inventor 石川习华丽梁雪瑞陈征江雄
Owner GUANGXUN SCI & TECH WUHAN
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