Michelson interferometer for laser wavelength

Liqiang Wang; Wenjie Ren

doi:10.1117/12.636227

2 December 2005 Michelson interferometer for laser wavelength

Liqiang Wang, Wenjie Ren

Proceedings Volume 6020, Optoelectronic Materials and Devices for Optical Communications; 60202M (2005) https://doi.org/10.1117/12.636227
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

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.

Citation Download Citation

Liqiang Wang and Wenjie Ren "Michelson interferometer for laser wavelength", Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60202M (2 December 2005); https://doi.org/10.1117/12.636227

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