2 December 2005 Michelson interferometer for laser wavelength
Author Affiliations +
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
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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Liqiang Wang, Wenjie Ren, "Michelson interferometer for laser wavelength", Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60202M (2 December 2005); doi: 10.1117/12.636227; https://doi.org/10.1117/12.636227

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