High power spectrally beam combined fiber laser with near-diffraction limited beam quality

Thomas H. Loftus; Paul R. Hoffman; Alison M. Thomas; Marc Norsen; Robert Royse; Eric Honea

doi:10.1117/12.702574

20 February 2007 High power spectrally beam combined fiber laser with near-diffraction limited beam quality

Thomas H. Loftus, Paul R. Hoffman, Alison M. Thomas, Marc Norsen, Robert Royse, Eric Honea

Proceedings Volume 6453, Fiber Lasers IV: Technology, Systems, and Applications; 64530S (2007) https://doi.org/10.1117/12.702574
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

We describe a three-channel, spectrally beam combined (SBC), 1-&mgr;m fiber laser that features a SBC power combining efficiency of 93%, versatile master-oscillator, power-amplifier (MOPA) fiber channels with up to 260 W of narrowband, polarized, and near-diffraction limited output, and currently produces 522 W of average power with a dispersed (non-dispersed) beam quality at 522 W of 1.18x (1.22x) diffraction limited. To our knowledge, these results represent the best combination of output power and beam quality achieved by SBC to date.

Citation Download Citation

Thomas H. Loftus, Paul R. Hoffman, Alison M. Thomas, Marc Norsen, Robert Royse, and Eric Honea "High power spectrally beam combined fiber laser with near-diffraction limited beam quality", Proc. SPIE 6453, Fiber Lasers IV: Technology, Systems, and Applications, 64530S (20 February 2007); https://doi.org/10.1117/12.702574

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