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Proceedings Paper

Overview of Sandia's fiber laser program
Author(s): Dahv A. V. Kliner; Ray P. Bambha; Binh T. Do; Roger L. Farrow; Jean-Philippe Fève; Brian P. Fox; G. Ronald Hadley; Andrea Hansen; Hanna J. Hoffman; Mircea Hotoleanu; Alexandra A. Hoops; Wen L. Hsu; Jeffrey P. Koplow; Joona Koponen; Sean W. Moore; Randal L. Schmitt; Paul E. Schrader; Joseph H. Simmons; Kelly Simmons-Potter; Arlee V. Smith; Mikko Söderlund; W. Joseph Thomes; Georg Wien
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Paper Abstract

Sandia National Laboratories' program in high-power fiber lasers has emphasized development of enabling technologies for power scaling and gaining a quantitative understanding of fundamental limits, particularly for high-peak-power, pulsed fiber sources. This paper provides an overview of the program, which includes: (1) power scaling of diffraction-limited fiber amplifiers by bend-loss-induced mode filtering to produce >1 MW peak power and >1 mJ pulse energy with a practical system architecture; (2) demonstration of a widely tunable repetition rate (7.1-27 kHz) while maintaining constant pulse duration and pulse energy, linear output polarization, diffraction-limited beam quality, and <1% pulse-energy fluctuations; (3) development of microlaser seed sources optimized for efficient energy extraction; (4) high-fidelity, three-dimensional, time-dependent modeling of fiber amplifiers, including nonlinear processes; (5) quantitative assessment of the limiting effects of four-wave mixing and self-focusing on fiber-amplifier performance; (6) nonlinear frequency conversion to efficiently generate mid-infrared through deep-ultraviolet radiation; (7) direct diode-bar pumping of a fiber laser using embedded-mirror side pumping, which provides 2.0x higher efficiency and much more compact packaging than traditional approaches employing formatted, fiber-coupled diode bars; and (8) fundamental studies of materials properties, including optical damage, photodarkening, and gamma-radiation-induced darkening.

Paper Details

Date Published: 14 April 2008
PDF: 12 pages
Proc. SPIE 6952, Laser Source Technology for Defense and Security IV, 695202 (14 April 2008); doi: 10.1117/12.782227
Show Author Affiliations
Dahv A. V. Kliner, Sandia National Labs. (United States)
Ray P. Bambha, Sandia National Labs. (United States)
Binh T. Do, Sandia National Labs. (United States)
Roger L. Farrow, Sandia National Labs. (United States)
Jean-Philippe Fève, JDSU (United States)
Brian P. Fox, Univ. of Arizona (United States)
G. Ronald Hadley, Sandia National Labs. (United States)
Andrea Hansen, Sandia National Labs. (United States)
Hanna J. Hoffman, Liekki Corp. (Finland)
Mircea Hotoleanu, Liekki Corp. (Finland)
Alexandra A. Hoops, Sandia National Labs. (United States)
Wen L. Hsu, Sandia National Labs. (United States)
Jeffrey P. Koplow, Sandia National Labs. (United States)
Joona Koponen, Liekki Corp. (Finland)
Sean W. Moore, Sandia National Labs. (United States)
Randal L. Schmitt, Sandia National Labs. (United States)
Paul E. Schrader, Sandia National Labs. (United States)
Joseph H. Simmons, Univ. of Arizona (United States)
Kelly Simmons-Potter, Univ. of Arizona (United States)
Arlee V. Smith, Sandia National Labs. (United States)
Mikko Söderlund, Liekki Corp. (Finland)
W. Joseph Thomes, Sandia National Labs. (United States)
Georg Wien, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 6952:
Laser Source Technology for Defense and Security IV
Mark Dubinskii; Gary L. Wood, Editor(s)

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