Thermostatic Control and Drive System Design for Semiconductor Laser Based on SiP
Constant temperature environment and stable current injection are essential conditions for the stable operation of semiconductor lasers.The traditional thermostatic control system and light source current drive system consist of discrete components such as voltage reference source,operational amplifier,power transistor,MOSFET,and so on.The employment of numerous discrete components adds complexity to circuit designs and leads to low reliability.Technology of system in package(SiP)is utilized to realize high-density integration of the thermostatic control system and light source current drive system,realizing a miniaturized,integrated,and low-cost design.Through system-level circuit and thermal simulation analysis,the reliability of the device design is ensured.According to the test results,the parameters of the device can meet the requirements.
system in packagesemiconductor laserthermostatic controldriving current