522 W spectrally beam combined fiber laser with near-diffraction limited beam quality

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

doi:10.1117/12.719789

10 May 2007 522 W spectrally beam combined fiber laser with near-diffraction limited beam quality

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

Proceedings Volume 6552, Laser Source Technology for Defense and Security III; 65520O (2007) https://doi.org/10.1117/12.719789
Event: Defense and Security Symposium, 2007, Orlando, Florida, 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, Raul Hoffman, Alison M. Thomas, Marc Norsen, Robert Royse, and Eric Honea "522 W spectrally beam combined fiber laser with near-diffraction limited beam quality", Proc. SPIE 6552, Laser Source Technology for Defense and Security III, 65520O (10 May 2007); https://doi.org/10.1117/12.719789

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