High-average power pulsed Yb:YAG thin-disk laser

Taisuke Miura; Takashi Suganuma; Akira Endo; Satoshi Wada

doi:10.1117/12.590206

27 April 2005 High-average power pulsed Yb:YAG thin-disk laser

Taisuke Miura, Takashi Suganuma, Akira Endo, Satoshi Wada

Proceedings Volume 5707, Solid State Lasers XIV: Technology and Devices; (2005) https://doi.org/10.1117/12.590206
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

We developed the elemental technologies to construct a 1-kW, 10-kHz thin-disk laser. We obtained the wellpolarized CW output of over 900 W without any compensation optics of the birefringence error. The extinction ratio of output was over 1:140. We developed and installed the water-cooled Pockels cell into the CW laser cavity to act as a polarization rotator by applying a DC-voltage to the cell. We confirmed that the cooled cell did not create distinguished birefringence and thermal lensing over 900-W operation. The deforming of thin-disk at high power operation was estimated by using a commercial M² meter. We optimized the cavity configuration from the estimation results to obtain high beam quality. After the optimization, the M² values kept up to 3.5 until the output reached to 400 W. At the 500-W output, the M² in vertical and horizontal plane were 3.65 and 3.02, respectively.

Citation Download Citation

Taisuke Miura, Takashi Suganuma, Akira Endo, and Satoshi Wada "High-average power pulsed Yb:YAG thin-disk laser", Proc. SPIE 5707, Solid State Lasers XIV: Technology and Devices, (27 April 2005); https://doi.org/10.1117/12.590206

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