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1.5-μm high-gain and high-power laser amplifier using a Er, Yb:Glass planar waveguide for coherent Doppler LIDAR

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9 Author(s)
Sakimura, T. ; Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan ; Watanabe, Y. ; Ando, T. ; Kameyama, S.
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We have developed a 1.5-μm high-power laser amplifier using Er, Yb:glass planar waveguide for a coherent Doppler LIDAR. Large cooling surface of the waveguide realized high-average power pumping for Er, Yb:glass which has low thermal fracture limit. Multi-bounce optical path configuration and high-intensity pumping provide high-gain operation in spite of small stimulated emission cross section. With pulsed operation, the maximum amplified signal power was 7.6-W with the amplified gain of more than 20 dB. The pulse energy of 1.9-mJ was achieved at the repetition rate of 4-kHz.

Published in:

Lasers and Electro-Optics (CLEO), 2012 Conference on

Date of Conference:

6-11 May 2012

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