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Proceedings Paper

Michelson interferometer for laser wavelength
Author(s): Liqiang Wang; Wenjie Ren
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Paper Abstract

A wavemeter based on Michelson interferometer accurately measure static wavelength of a tunable laser. Its operation principle is formulated in details. Double longitudinal-mode He-Ne laser with frequency stabilization is used as the reference optical source of the wavemeter. Voice-coil motor using PID means can realize to move in uniform motion. Phase-locked loop circuit including NE564 and 74LS193 is used to enhance resolution of the wavemeter. Data processing is carried out by the counter unit including two 8254 programmable timer, a MCU, a LCD. The test shows that its measurement accuracy is 1×10-6 and is higher than those of other wavemeters such as Fizeau interference and Fabry-Perot wavemeter.

Paper Details

Date Published: 2 December 2005
PDF: 8 pages
Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60202M (2 December 2005); doi: 10.1117/12.636227
Show Author Affiliations
Liqiang Wang, Beijing Univ. of Posts and Telecommunications (China)
Wenjie Ren, Dalian Univ. of Technology (China)
Hebei Univ. of Technology (China)


Published in SPIE Proceedings Vol. 6020:
Optoelectronic Materials and Devices for Optical Communications
Shinji Tsuji; Jens Buus; Yi Luo, Editor(s)

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