PROGRESS IN DUAL FREQUENCY HeNe LASER AND APPLICATION

S. Zhang, Y. Li, X. Zong

Abstract

Recent important progress in Dual frequency He-Ne lasers is reported, including two methods and experimental results to avoid mode competition and generate the frequency difference covering of 1~40 MHz, and the principle and the experiments of making a birefringence dual frequency laser itself be a displacement sensor with l/8 resolution, 8mm measurement range, and the function of selfcalibration.

Keywords

dual frequency laser, displacement

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IMEKO-WC-2000-TC2-P058.pdf

DOI

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IMEKO TC

TC2 - Photonics

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