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Optical Engineering

Influence of optical feedback on the longitudinal mode stability of microchip Nd:YAG lasers
Author(s): Xinjun Wan; Shulian Zhang; Gang Liu; Ligang Fei
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Paper Abstract

The influence of optical feedback on the longitudinal mode stability of microchip Nd:YAG lasers is demonstrated. Under optical feedback, the longitudinal mode output of microchip lasers relies strongly on the external cavity length, and mode suppression can be achieved. The intensity modulation waveform varies at different external cavity lengths. At higher feedback levels, the laser flips between orthogonal polarizations. Three important factors determining the influence of optical feedback are summarized, which are the external cavity length, longitudinal mode competition, and the external reflectivity.

Paper Details

Date Published: 1 October 2005
PDF: 5 pages
Opt. Eng. 44(10) 104204 doi: 10.1117/1.2087247
Published in: Optical Engineering Volume 44, Issue 10
Show Author Affiliations
Xinjun Wan, Tsinghua Univ. (China)
Shulian Zhang, Tsinghua Univ. (China)
Gang Liu, Tsinghua Univ. (China)
Ligang Fei, Tsinghua Univ. (China)


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