A Design of Diode Laser Output Power Control System

This paper introduces a semiconductor laser power drive system that can set up the work magnitude of current in advance by single-chip micro computer.The syetem uses the feedback loop to compare and adjust the current using core component 89S51,which improves system accuracy.The experiments show that the system has the merits of high intelligence,strong antijamming ability,excellent power source stability and no harm to the laser.