Compact frequency-quadrupled pulsed 1030nm fiber laser

Chris McIntosh; Lew Goldberg; Brian Cole; Tom DiLazaro; Alan D. Hays

doi:10.1117/12.2209334

11 March 2016 Compact frequency-quadrupled pulsed 1030nm fiber laser

Chris McIntosh, Lew Goldberg, Brian Cole, Tom DiLazaro, Alan D. Hays

Proceedings Volume 9728, Fiber Lasers XIII: Technology, Systems, and Applications; 97283E (2016) https://doi.org/10.1117/12.2209334
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

A compact 1030nm fiber laser for ultraviolet generation at 257.5nm is presented. The laser employs a short length of highly-doped, large core (20μm), coiled polarization-maintaining ytterbium-doped double-clad fiber pumped by a wavelength-stabilized 975nm diode. It is passively Q-switched via a Cr⁴⁺:YAG saturable absorber and generates 2.4W at 1030nm in a 110μJ pulse train. Lithium triborate (LBO) and beta-barium borate (BBO) are used to achieve 325mW average power at the fourth harmonic. The laser's small form factor, narrow linewidth and modest power consumption are suitable for use in a man-portable ultraviolet Raman explosives detection system.

Citation Download Citation

Chris McIntosh, Lew Goldberg, Brian Cole, Tom DiLazaro, and Alan D. Hays "Compact frequency-quadrupled pulsed 1030nm fiber laser", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97283E (11 March 2016); https://doi.org/10.1117/12.2209334

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