16 September 2005 Design of a totally conductively cooled diode-pumped 2μm-laser amplifier
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Abstract
For space-based lidar applications, conductively cooled lasers have been identified as a critical technology for high energy, 2-micron laser transmitter. Effective thermal management is a challenge for high-energy, 2-micon lasers. In this paper, the design of a totally conductively cooled, diode pumped, 2-micron laser amplifier is presented. Based on the successful testing of a conductively cooled oscillator, concepts for a laser amplifier were developed. The newly designed amplifier consists of a 40 mm long Ho:Tm: LuLF rod being pumped by 4 banks of 5-radially arranged diode lasers totaling 80W pump power. Optical and thermal studies for the amplifier head are presented and discussed. Currently, the design of the amplifier head is being integrated into a complete amplifier subsystem for a conductive cooled Master Oscillator Power Amplifier (MOPA) laser.
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Bo Trieu, Bo Trieu, Jirong Yu, Jirong Yu, Mulugeta Petros, Mulugeta Petros, Luis Ramos-Izquierdo, Luis Ramos-Izquierdo, Glenn Byron, Glenn Byron, Peck Sohn, Peck Sohn, Yingxin Bai, Yingxin Bai, Songsheng Chen, Songsheng Chen, Michael J. Kavaya, Michael J. Kavaya, Upendra N. Singh, Upendra N. Singh, } "Design of a totally conductively cooled diode-pumped 2μm-laser amplifier", Proc. SPIE 5887, Lidar Remote Sensing for Environmental Monitoring VI, 58870M (16 September 2005); doi: 10.1117/12.620823; https://doi.org/10.1117/12.620823
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