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Spaceflight 100W, 1940nm polarization maintaining Tm doped fiber laser for pumping Q-switched 2um Ho:YLF
Author(s): Doruk Engin; Slava Litvinovitch; Mark Long; He Cao; Mark Storm
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Paper Abstract

Fibertek has designed and is building a spaceflight (TRL 5-6) high-efficiency, high reliability (97.2% for 5-year mission) 100 W average, 1940 nm thulium doped fiber laser (TDFL) meeting all requirements for a NASA Earth Science spaceflight 2 μm Ho:YLF pump laser. These include polarization extinction ratio <16dB, diffraction limited beam quality, narrow linewidth (0.35nm) and >50% optical to optical efficiency. High reliability laser package, optimized for space environment and SWAP has size 10.6”x13.8”x4.4”and weight 30lbs. A summary of laser package design is presented, including structural and thermal analysis. Preliminary environmental testing results of the space laser are also presented. A spaceflight 100 W PM Tm laser provides a path to space for a pulsed, Q-switched 2 μm Ho:YLF laser with ~80 mJ/pulse at 100-200 Hz.

Paper Details

Date Published: 4 March 2019
PDF: 8 pages
Proc. SPIE 10899, Components and Packaging for Laser Systems V, 108990H (4 March 2019); doi: 10.1117/12.2507905
Show Author Affiliations
Doruk Engin, Fibertek, Inc. (United States)
Slava Litvinovitch, Fibertek, Inc. (United States)
Mark Long, Fibertek, Inc. (United States)
He Cao, Fibertek, Inc. (United States)
Mark Storm, Fibertek, Inc. (United States)

Published in SPIE Proceedings Vol. 10899:
Components and Packaging for Laser Systems V
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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