Optical module

The invention discloses an optical module which comprises a circuit board and a light emitting assembly. The light emitting assembly includes a light emitting region and an electro-absorption modulation region. The circuit board is provided with an MCU, a bias circuit, a power supply circuit and a current detection circuit. And the bias circuit is connected with the light emitting region and used for providing bias current for the light emitting region so as to enable the light emitting region to emit light. And the power supply circuit is connected with the first end of the current detection circuit and used for supplying power to the electro-absorption modulation region. The second end of the current detection circuit is connected with the first end of the electro-absorption modulation region, and the current detection circuit is used for detecting current generated by the electro-absorption modulation region and converting the current into voltage. And the MCU monitors the optical power in real time accord