Influence of optical feedback on the longitudinal mode stability of microchip Nd:YAG lasers

Xinjun Wan; Shulian Zhang; Gang Liu; Ligang Fei

doi:10.1117/1.2087247

1 October 2005 Influence of optical feedback on the longitudinal mode stability of microchip Nd:YAG lasers

Xinjun Wan, Shulian Zhang, Gang Liu, Ligang Fei

Author Affiliations +

Optical Engineering, Vol. 44, Issue 10, 104204 (October 2005). https://doi.org/10.1117/1.2087247

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.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Xinjun Wan, Shulian Zhang, Gang Liu, and Ligang Fei "Influence of optical feedback on the longitudinal mode stability of microchip Nd:YAG lasers," Optical Engineering 44(10), 104204 (1 October 2005). https://doi.org/10.1117/1.2087247

Published: 1 October 2005

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