Fiber amplifier based UV laser source

Manuel J. Leonardo; Mark W. Byer; Gregory L. Keaton; Derek J. Richard; Frank J. Adams; John L. Nightingale; Mark A. Arbore; Susi Guzsella; Laura A. Smoliar

doi:10.1117/12.806820

19 February 2009 Fiber amplifier based UV laser source

Manuel J. Leonardo, Mark W. Byer, Gregory L. Keaton, Derek J. Richard, Frank J. Adams, John L. Nightingale, Mark A. Arbore, Susi Guzsella, Laura A. Smoliar

Author Affiliations +

Proceedings Volume 7195, Fiber Lasers VI: Technology, Systems, and Applications; 71950F (2009) https://doi.org/10.1117/12.806820
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

We demonstrate 30 W of average UV power, at 353 nm, by harmonically converting the output of a seeded cascade of fiber amplifiers operating at 1060 nm. The UV output represents 46% harmonic conversion efficiency from the fundamental beam. The all-fiber-amplifier, MOPA architecture supports variable pulse repetition frequencies and pulse widths. We demonstrate pulse repetition frequencies up to 2 MHz and pulse widths as short as 2 ns. Two bulk LBO crystals, oriented for second and third harmonic conversion, are used to obtain stable UV output power. A turnkey system using this architecture is commercially available. The system is entirely air-cooled and operates from a standard wall plug electric service, facilitating integration into various material processing applications.

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Manuel J. Leonardo, Mark W. Byer, Gregory L. Keaton, Derek J. Richard, Frank J. Adams, John L. Nightingale, Mark A. Arbore, Susi Guzsella, and Laura A. Smoliar "Fiber amplifier based UV laser source", Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71950F (19 February 2009); https://doi.org/10.1117/12.806820

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