OPTICAL MODULE AND TEMPERATURE CONTROL METHOD THEREOF

An optical module includes a shell, a circuit board, a light-emitting device, a sensor assembly and a processor. The circuit board is disposed in the shell. The light-emitting device is disposed in the shell, and includes a non-hermetically sealed cover, a laser chip and a thermo electric cooler. The thermo electric cooler is disposed in the cover and is configured to adjust a temperature of the heat exchange surface of the thermo electric cooler connected to the laser chip. The sensor assembly is disposed on the circuit board and is configured to detect ambient data inside the optical module, the ambient data including at least ambient humidity. The processor is disposed on the circuit board, and is configured to receive the ambient data detected by and sent from the sensor assembly, and control the thermo electric cooler to adjust the temperature of the heat exchange surface of the thermo electric cooler to a target temperature according to the ambient data.