Self-mixing interference effects with a folding feedback cavity in Zeeman-birefringence dual frequency laser
Optics Express, Vol. 14, Issue 1, pp. 182-189 (2006)
http://dx.doi.org/10.1364/OPEX.14.000182
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Abstract
The self-mixing interference effects with a folding feedback cavity in a Zeeman-birefringence dual frequency laser have been investigated theoretically and experimentally. The fringe frequency of the self-mixing interference system can be doubled due to the hollow cube corner prism, with which a folding cavity is formed. The intensities of the two frequencies are changed periodically in the modulation of the external cavity length. When the phase difference between the two frequencies equals π/2, the intensity modulation curves can be divided into four zones with equal width in a period. Each zone corresponds to one polarization state. Based on the experimental results, a novel displacement sensor with a high resolution of λ/16, as well as functions of direction discrimination, is discussed.
© 2006 Optical Society of America
OCIS Codes
(140.1340) Lasers and laser optics : Atomic gas lasers
(260.1440) Physical optics : Birefringence
(260.3160) Physical optics : Interference
(260.7490) Physical optics : Zeeman effect
ToC Category:
Lasers and Laser Optics
Citation
Wei Mao, Shulian Zhang, Liu Cui, and Yidong Tan, "Self-mixing interference effects with a folding feedback cavity in Zeeman-birefringence dual frequency laser," Opt. Express 14, 182-189 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-1-182
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References
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