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Proceedings Paper

The design and implementation of high accuracy digital control semiconductor laser constant current source
Author(s): Tonggang Zhao; Chuanlong Huang
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Paper Abstract

In order to achieve the goal of constant output light power, the design of high accuracy digital control semiconductor laser constant current source is very important. Semiconductor laser is can be divided into load floating and load grounding two types based on the package. In this paper, a small power grounding type digital control semiconductor laser constant current source is realized by using ARM processor. By using this method, the semiconductor laser can be provided within the range of 0mA-500mA constant current. At same time, some functions such as slow start, temperature control, overcurrent protection are realized. In actual experiment test result show, the design method is stable, reliable and high accuracy.

Paper Details

Date Published: 19 December 2013
PDF: 8 pages
Proc. SPIE 9046, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 90460P (19 December 2013); doi: 10.1117/12.2035368
Show Author Affiliations
Tonggang Zhao, Beijing Univ. of Posts and Telecommunications (China)
Chuanlong Huang, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 9046:
2013 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Hwa-Yaw Tam; Kexin Xu; Hai Xiao; Jigui Zhu, Editor(s)

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