Amplification of Q-switched pulses to 400 mJ at 2051 nm using a conduction-cooled laser pump module

Mark W. Phillips; J. Pete Tucker

doi:10.1117/12.572463

12 January 2005 Amplification of Q-switched pulses to 400 mJ at 2051 nm using a conduction-cooled laser pump module

Mark W. Phillips, J. Pete Tucker

Proceedings Volume 5653, Lidar Remote Sensing for Industry and Environmental Monitoring V; (2005) https://doi.org/10.1117/12.572463
Event: Fourth International Asia-Pacific Environmental Remote Sensing Symposium 2004: Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2004, Honolulu, Hawai'i, United States

Abstract

CTI has demonstrated Q-switched pulse amplification in Tm,Ho:YLF at >400 mJ output pulse energy for 60 mJ of input energy using a single stage 2-pass (on-axis) amplifier. The pulse duration was 800 ns. A double-pass gain of 10 was demonstrated for 35 mJ input pulse energy. The optical-to-optical efficiency for the 2-pass amplifier was 8%. This is the first demonstration of multiple hundred millijoule output and >10 times double-pass amplification in an all conduction-cooled two micron laser pump module: both the laser rod, operating at 200 K, and the pump laser diodes, operating at 300 K, are conduction-cooled to embedded cold-plates that remove heat from the pump module. As such, this design is directly compatible with the use of heatpipe and space radiator technology for thermal management in a space environment.

Citation Download Citation

Mark W. Phillips and J. Pete Tucker "Amplification of Q-switched pulses to 400 mJ at 2051 nm using a conduction-cooled laser pump module", Proc. SPIE 5653, Lidar Remote Sensing for Industry and Environmental Monitoring V, (12 January 2005); https://doi.org/10.1117/12.572463

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