Communication method and system for low-optical-power down-regulation signal, and optical module

• Main Authors: QIAN YINBO, CHEN CONG, LIAO ZHENXING, NIE SHAOLIN, ZHONG JIANFENG
• Format: Patent
• Language: Chinese; English
• Published: 10.07.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to the technical field of optical communication, and discloses a communication method and system for a low-optical-power down-regulation signal, and an optical module. The communication method comprises the following steps that: a first optical module judges whether the number of times of continuous error reporting of check codes in received low-speed topping data exceeds a preset threshold value and the received optical power is lower than the conventional sensitivity, receives SD/LOS loss report information and/or receives system high-error-rate feedback information; ifyes, the first optical module sends a parameter adjustment notification to the second optical module through the first low-speed topping transmitter; and the second optical module adjusts modulationparameters of the second low-speed topping transmitter and controls the second low-speed topping transmitter to work according to the adjusted modulation parameters. According to the embodiment of theinvention, through a mode