High-sensitivity two-dimensional observation of thermal birefringence in the laser diode pumped solid state lasers

Hiromitsu Kiriyama; Takuji Yoshida; Masanobu Yamanaka; Yasukazu Izawa; Tatsuhiko Yamanaka; Sadao Nakai; Chiyoe Yamanaka

doi:10.1117/12.246197

16 August 1996 High-sensitivity two-dimensional observation of thermal birefringence in the laser diode pumped solid state lasers

Hiromitsu Kiriyama, Takuji Yoshida, Masanobu Yamanaka, Yasukazu Izawa, Tatsuhiko Yamanaka, Sadao Nakai, Chiyoe Yamanaka

Author Affiliations +

Proceedings Volume 2873, International Symposium on Polarization Analysis and Applications to Device Technology; (1996) https://doi.org/10.1117/12.246197
Event: International Symposium on Polarization Analysis and Applications to Device Technology, 1996, Yokohama, Japan

Abstract

We report the high-sensitivity measurements of 2D thermal birefringence distribution in LD pumped Nd:glass (HAP4) laser under lasing at 1054 nm and non lasing conditions. The thermal birefringence was reduced under the lasing condition compared to the non lasing condition. By inserting a 90 degree(s) quartz rotator between two identically LD pumped Nd:glass rods, almost perfect birefringence compensation was achieved with very little residual birefringence. A considerable reduction of birefringence loss from over 20% before compensation to less than 1% after compensation was observed.

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Hiromitsu Kiriyama, Takuji Yoshida, Masanobu Yamanaka, Yasukazu Izawa, Tatsuhiko Yamanaka, Sadao Nakai, and Chiyoe Yamanaka "High-sensitivity two-dimensional observation of thermal birefringence in the laser diode pumped solid state lasers", Proc. SPIE 2873, International Symposium on Polarization Analysis and Applications to Device Technology, (16 August 1996); https://doi.org/10.1117/12.246197

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