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Proceedings Paper

Design of laser diode driver with constant current and temperature control system
Author(s): Ming-cai Wang; Kai-yong Yang; Zhi-guo Wang; Zhen-fang Fan
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Paper Abstract

A laser Diode (LD) driver with constant current and temperature control system is designed according to the LD working characteristics. We deeply researched the protection circuit and temperature control circuit based on thermos-electric cooler(TEC) cooling circuit and PID algorithm. The driver could realize constant current output and achieve stable temperature control of LD. Real-time feedback control method was adopted in the temperature control system to make LD work on its best temperature point. The output power variety and output wavelength shift of LD caused by current and temperature instability were decreased. Furthermore, the driving current and working temperature is adjustable according to specific requirements. The experiment result showed that the developed LD driver meets the characteristics of LD.

Paper Details

Date Published: 24 October 2017
PDF: 5 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045730 (24 October 2017); doi: 10.1117/12.2285055
Show Author Affiliations
Ming-cai Wang, National Univ. of Defense Technology (China)
Kai-yong Yang, National Univ. of Defense Technology (China)
Zhi-guo Wang, National Univ. of Defense Technology (China)
Zhen-fang Fan, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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