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Optical module

A technology of optical modules and light intensity, applied in the field of optical communication, can solve problems affecting production efficiency, increase the production man-hours of optical modules, etc., and achieve the effect of improving production efficiency

Pending Publication Date: 2021-12-21
广东海信宽带科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is easy to increase the man-hours of optical module production and affect production efficiency

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0024] One of the core links of optical fiber communication is the mutual conversion of optical and electrical signals. Optical fiber communication uses optical signals carrying information to be transmitted in information transmission equipment such as optical fibers / optical waveguides, and the passive transmission characteristics of light in optical fibers / optical waveguides can be used to achieve low-cost, low-loss information transmission; and information processing equipment suc...

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Abstract

The invention provides an optical module. The optical module comprises a circuit board, an optical receiving assembly connected with the circuit board and an MCU arranged on the circuit board. The light receiving assembly is used for generating photo-generated current. The MCU is provided with a target sampling value corresponding to the target light intensity. The target light intensity is used for judging the RX-LOS signal. The target sampling value of the optical module is not equal to the target sampling values of other optical modules, but is equal to the target light intensity of other optical modules, and the target sampling value is obtained by inverse calculation of the target light intensity. As the range of the LOS signals generated by all the optical modules is the same, the target light intensities for generating the LOS signals are the same. According to the invention, the target sampling value is obtained through the inverse calculation of the target light intensity, the target sampling value can be set as the RX-LOS threshold value, the RX-LOS threshold value matched with the light receiving assembly can be obtained without the need of additionally adding processes, the RX-LOS threshold value adaptive function is realized, independent debugging is not needed, and the production efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of optical communication, and in particular to an optical module. Background technique [0002] In optical module products, an RX-LOS (Receive Loss of Signal Alarm) pin is usually designed. During use, judge whether the receiving signal of the optical module is lost by monitoring the RX-LOS status. With the rapid increase in social bandwidth requirements, optical modules begin to rely on DSP to achieve rate conversion and signal amplification. However, the DSP does not have the RX-LOS function and cannot meet the functional requirements of the optical module. [0003] In order to solve this problem, a software algorithm is set in the MCU of the traditional optical module, and the RX-LOS function is realized by using the software algorithm in the MCU. The specific process is as follows: First, the optical signal is input to the optical receiving sub-module to generate photo-generated current; sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/40H04B10/69
CPCH04B10/40H04B10/695
Inventor 朱晓勐薛登山李福宾
Owner 广东海信宽带科技有限公司