›› 2016, Vol. 29 ›› Issue (6): 96-.

• Articles • Previous Articles     Next Articles

Semiconductor Laser Driver Design and Test Based on ARM

GE Xiantao,HU Qi,GAO Pengfei,TAN Mengke   

  1. (School of OpticalElectrical and Computer Engineering, University of Shanghai for Science and Techonlogy,
    Shanghai 20093, China)
  • Online:2016-06-15 Published:2016-06-22

Abstract:

In the applications of the semiconductor laser , the driving circuit directly affects the stability of the laser . A design solution with high efficiency , stability , wide range of power  was put forward . In order to realize the stable closedloop control ,Sampling resistor and constant current circuit will be made use of , Then it gets a constant driving current . Using the themistor temperature properties and the control circuit of temperature with MCU control system , It obtains the temperature control of closedloop, which meets requirenment of stable temperature control.With the constant temperature , constant current and MCU system,a design solution of closedloop control will be realized. Experimental results show that the power measured by power meter has a good linear relationship with driving current and the range of power is wide. The circuit has a reliable long working time ; The laser has reliable monochromaticity ;System is reliable.

Key words: laser;constant current;constant temperature;driving circuit

CLC Number: 

  • TN248