Optical module and method for monitoring light-emitting power thereof

• Main Authors: QIAN YINBO, LIAO ZHENXING, NIE SHAOLIN, WANG HUITAO, ZHONG JIANFENG
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention relates to the technical field of optical communication, and discloses an optical module and a method for monitoring the light-emitting power thereof. The optical module comprises a multi-channel laser used for outputting multiple optical signals; a combiner used for combining and outputting the multiple optical signals; an optical splitter used for splitting the optical signal output by the combiner into a first optical splitting signal and a second optical splitting signal; a monitoring photodiode used for receiving the first light splitting signal and outputting a corresponding electric signal; an output circuit used for providing bias current for the multi-channel laser; an ADC unit used for collecting an electric signal of the monitoring photodiode in real time; and a controller used for sequentially performing low-frequency perturbation on the bias current of each channel of the multi-channel laser and determining the light emitting power of each channel of the multi-channel laser accordin