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A parallel transceiver light module for dual-link transmission and its manufacturing method

A manufacturing method and technology of an optical module, which are applied in the field of optical communication

Active Publication Date: 2018-08-07
WUHAN TELECOMM DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a parallel transceiver optical module for dual-link transmission and a manufacturing method to solve the problem that there is no parallel transceiver optical module in the prior art that is compatible with multimode optical fiber and single-mode optical fiber transmission at the same time. question

Method used

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  • A parallel transceiver light module for dual-link transmission and its manufacturing method
  • A parallel transceiver light module for dual-link transmission and its manufacturing method
  • A parallel transceiver light module for dual-link transmission and its manufacturing method

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Effect test

Embodiment 1

[0044] Such as figure 1 Shown is a parallel receiving and receiving light module for dual-link transmission provided by the present invention, the parallel receiving and receiving light module includes a light emitting device 103, a light receiving device 104, a PCB circuit board 102 and a data interface (in the figure not shown), specifically:

[0045] Such as figure 2 As shown, the light-emitting device is composed of a first pin collimator 201 and a first shell assembly 202; the first pin collimator 201 includes a first optical fiber interface 401, a single-mode pin 402 and a first A collimating lens 403, the three are sequentially coupled and fixed on the first pin collimator 201; the first package assembly 202 includes a wavelength division multiplexing assembly 405, a coupling lens group 406 and a laser chipset 407, the three are sequentially coupled and fixed on the shell assembly 202;

[0046] Such as image 3 As shown, the light-receiving device is composed of a ...

Embodiment 2

[0054] The embodiment of the present invention also provides a method for manufacturing a parallel transceiver optical module for dual-link transmission, which is assembled according to the parallel transceiver optical module described in Embodiment 1, wherein, as Figure 5 As shown, the process of assembling the first collimating lens 403 and the coupling lens group 406 also includes:

[0055] In step 201, the first collimator lens 403 is customized so that the difference between the multimode coupling optical power and the single mode coupling optical power of each channel at the output port of the laser component 407 is within a preset coupling tolerance range. The tolerance range can refer to the industrial parameter index of each device, and details will not be repeated here.

[0056] In step 202, test and count the average value of the maximum coupled optical power of the lasers of each channel coupled with the single-mode collimator 402, denoted as Ps1, Ps2, ..., Psn, w...

Embodiment 3

[0069] In the embodiment of the present invention, a device composed of a four-channel laser component and a four-channel detector component for CWDM is used as an example to illustrate, wherein the working wavelength adopts four commonly used wavelengths of CWDM: λ 1 , lambda 2 , lambda 3 and lambda 4 , such as 1271nm, 1291nm, 1311nm and 1331nm. The optical module can adopt QSFP+IR4, QSFP+LM4, QSFP+LR4, QSFP28, PSM4, CFP2, CFP4 and other packaging forms. For the convenience of presentation, the following uses the QSFP+LR4 packaging form as an example for illustration.

[0070] Such as Figure 1-3 As shown, the optical module includes a housing 101 , a PCB board 102 , an optical emitting device 103 and an optical receiving device 104 . The light-emitting device 103 includes a pin collimator 201 , a shell assembly 202 and a flexible tape 409 , and the light-receiving device 104 includes a pin collimator 204 , a shell assembly 205 and a flexible tape 508 . The light-emittin...

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Abstract

A parallel transmission and reception optical module for dual-link transmission, and a preparation method. The transmission and reception optical module comprises a transmission optical device (103), a reception optical module (104), a PCB circuit board (102), and a data interface. The transmission optical device (103) consists of a first contact pin collimator (201) and a first tube assembly (202). The first contact pin collimator (201) comprises a first optical fiber interface (401), a single-mode contact pin (402), and a first collimation lens (403), all of which are sequentially coupled and fixed to the first contact pin collimator (201). The first tube assembly (202) comprises a wavelength division multiplexing assembly (405), a coupling lens group (406), and a laser chipset (407), all of which are sequentially coupled and fixed to the tube assembly. The reception optical module (104) consists of a second contact pin collimator (204) and a second tube assembly (205). The second contact pin collimator (204) comprises a second optical fiber interface (501), a multi-mode contact pin (502) and a second collimation lens (503), all of which are sequentially coupled and fixed on the second contact pin collimator (204). The second tube assembly (205) comprises a wavelength division demultiplexing assembly (504), an array lens (505) and a detector chipset (506), all of which are sequentially coupled and fixed to the tube assembly. The optical module has capabilities of transmission on a long-distance single-mode optical fiber and a short-distance multi-mode optical fiber, and has the characteristics of low costs, batch production and miniaturization. Also provided is a preparation method for the optical module.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and in particular relates to a parallel receiving and receiving optical module for dual-link transmission and a manufacturing method. Background technique [0002] Today's high-speed optical devices and optical modules for parallel transmission, such as QSFP+IR4, QSFP+LM4, QSFP+LR4, QSFP+28, etc., are all aimed at a certain application site, or an application link layer, such as patent CN201210184192. 7. CN201310751180.2, US20120189314A1, etc., are applied to long-distance single-mode link transmission; patents such as CN201410700394.1, CN201310164198.2, etc., are applied to short-distance multi-mode link transmission. For the requirements of different application places or different application link layers, such as being applied to long-distance single-mode links and short-distance multi-mode links at the same time, the optical devices or optical modules commonly used in the market...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42G02B6/32
CPCG02B6/42
Inventor 胡百泉付永安刘成刚陈伟赵丹郑盼
Owner WUHAN TELECOMM DEVICES