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
CN103513348AActive Publication Date: 2014-01-15GUANGXUN SCI & TECH WUHAN
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXUN SCI & TECH WUHAN
Publication Date
2014-01-15

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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.
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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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