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an optical module

A technology of optical modules and optical fiber ribbons, which is applied in the field of optical communications and can solve problems such as difficulties in wiring boards

Active Publication Date: 2018-06-19
HISENSE BROADBAND MULTIMEDIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An embodiment of the present invention provides an optical module, which is used to solve the problem of difficult routing on the circuit board of the optical module, so as to improve the transmission performance of the optical module

Method used

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Embodiment Construction

[0026] In order to make the technical problems, technical solutions and effects solved by the present invention clearer, the preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention. Invention is not intended to limit the present invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0027] For customized optical modules or optical module designs with many channels (such as 12, 24, and 48 channels), high-speed differential signal connectors, gold fingers, etc. define the pins for transmitting and receiving electrical signals on the circuit board, The definition of fiber optic egress channels is usually derived from customer requirements or MSA regulations, and these external conditions c...

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Abstract

The invention discloses an optical module, which is used to solve the problem of difficult PCB routing in the prior art. The optical module of the present invention includes: a circuit board, a lens assembly, and an optical fiber adapter corresponding to the lens assembly; the drive chip of the lens assembly is communicated with the electrical signal interface of the designated position area on the circuit board, so as to reduce the number of electrical signal interfaces and drive points in the designated position area. The crossing of the communication channels of the chip; among them, the electrical signal interface of the designated position area is determined according to the type of optical components driven by the driver chip, the type and arrangement of each electrical signal interface on the circuit board; the jumper device of the lens component and the optical fiber adapter pass through The optical fiber ribbon is connected, wherein the sequence of channels on the side where the optical fiber ribbon is connected to the jumper device is different from the sequence of channels on the side where the optical fiber ribbon is connected to the optical fiber adapter. The above-mentioned optical module connects the electrical signal interface of the specified location area to the driver chip, so that the PCB traces have no crossover or less crossover.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of optical communication, and in particular, to an optical module. Background technique [0002] In the field of high-speed parallel optical modules, with the increase of optical paths, the improvement of module integration, and the continuous improvement of transmission rates, especially the multi-channel parallel optical modules with a rate of 25Gbps, the PCB board, the length of differential signal traces, and the number of vias in the module Wait for higher requirements. Cabling is becoming more and more difficult to control to an optimal level. Especially when there are many optical paths, such as high-density and high-speed parallel optical modules with 12 / 24 / 48 channels, there are usually multiple ICs that output enough high-speed differential signal channels in parallel, and the routing of high-speed differential signals on the PCB will be very complicated. It will be difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42
CPCG02B6/4249G02B6/4279
Inventor 徐海强
Owner HISENSE BROADBAND MULTIMEDIA TECH
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