A Method of Stabilizing Semiconductor Laser Power

Abstract:

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For the influence of the temperature and current, the power of semiconductor laser fluctuates constantly. So this paper comes up with a new method to solve this problem. The design of peripheral circuit contains two parts: temperature control and power control. The system of temperature control uses special laser temperature control chip, which realizes the accuracy of 0.01°C. The system of power control adopts hardware PI control, over-current protection, over-voltage protection, and temperature protection. Temperature compensation is added to the circuit, which realizes the accuracy of 0.01mW.

Info:

Periodical:

Edited by:

Han Zhao

Pages:

1370-1373

DOI:

10.4028/www.scientific.net/AMM.130-134.1370

Citation:

Q. P. Yuan et al., "A Method of Stabilizing Semiconductor Laser Power", Applied Mechanics and Materials, Vols. 130-134, pp. 1370-1373, 2012

Online since:

October 2011

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Price:

$35.00

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