Testing and analyzing system for electro-optics characteristics of LDs based on virtual instrumentation

Fengli Gao; Shuxu Guo; Zhenguo Zhang; Siyao Yu; Shuang Zhang; Xiangxin Shao

doi:10.1117/12.819696

31 December 2008 Testing and analyzing system for electro-optics characteristics of LDs based on virtual instrumentation

Fengli Gao, Shuxu Guo, Zhenguo Zhang, Siyao Yu, Shuang Zhang, Xiangxin Shao

Author Affiliations +

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71303T (2008) https://doi.org/10.1117/12.819696
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

In this paper, a testing and analyzing system for volt-current and optic-power characteristics of semiconductor laser diodes (LDs) based on virtual instrumentation is designed and developed by using PCI-6014 DAQ. The design methods of hardware circuit and software for NI-DAQ are introduced. Some protective methods to LDs, such as driving current limit, avoiding electrical pulse and delay start-up etc. problems, are completely finished by the software, instead of mostly considering the resolvent on hardware circuits. The detailed tested data for the function and performance of the system is presented, and the every tested data of LDs indicates that the whole system is of excellent performance and stability to obtain the parameters of LDs.

Citation Download Citation

Fengli Gao, Shuxu Guo, Zhenguo Zhang, Siyao Yu, Shuang Zhang, and Xiangxin Shao "Testing and analyzing system for electro-optics characteristics of LDs based on virtual instrumentation", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71303T (31 December 2008); https://doi.org/10.1117/12.819696

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