The tunable laser module

A tunable laser module comprises a temperature control chip, a tunable laser, a laser driver chip, a zero-drift operation amplifier chip, a digital potentiometer chip, a single-chip microcomputer chip, an analog-digital sampling chip, a pin, a first linear power supply chip and a second linear power supply chip. A first output end of the tunable laser is connected with a first input end of the temperature control chip, and a first input end of tunable laser is connected with an output end of the temperature control chip. An output end of the laser driver chip is connected with a second input end of the tunable laser. An output end of the zero-drift operation amplifier chip is connected with a third input end of the tunable laser. An output end of the digital potentiometer chip is connected with an input end of the zero-drift operation amplifier chip. A first output end of the single-chip microcomputer chip is connected with an input end of the tunable laser driver chip, and a second output end of the single-chip microcomputer chip is connected with an input end of the digital potentiometer chip. An output end of the analog-digital sampling chip is connected with an input end of the single-chip microcomputer chip, and an input end of the analog-digital sampling chip is connected with a second output end of the tunable laser. The pin is in linear connection with the single-chip microcomputer chip. The first linear power supply chip and the second linear power supply chip are respectively in linear connection with the pin.