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

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-i...

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Bibliographic Details
Main Authors: Sakimura, T., Watanabe, Y., Ando, T., Kameyama, S., Asaka, K., Tanaka, H., Yanagisawa, T., Hirano, Y., Inokuchi, H.
Format: Conference Proceeding
Language:English
Subjects:
Laser excitation
Optical fiber amplifiers
Pump lasers
Stimulated emission
Waveguide lasers
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Summary: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.
ISSN:2160-8989
2160-9004