Research of simulate experiment method on Semiconductor laser driver´s export circuit

The applications of semiconductor laser are more and more extensive in the optical fiber communication, information storage and read, and efficient pump source. As a result it has very high requirement to the performance and security of the laser driver. Based on the hardware circuit of the great power semiconductor laser driver which has been completed, we focus on theoretic analysis for export circuit using the Protel99SE simulator. The paper researches on experimental method to the main unit circuit, and proposes the experimental method which differs from hardware experiment. The results indicate that the design is accurate and can insure the stable current of 250mA in the export circuit of the driver.