Published December 2013
| public
Journal Article
Stimulated Brillouin Scattering Suppression With a Chirped Laser Seed: Comparison of Dynamical Model to Experimental Data
Abstract
A numerical model is developed to simulate stimulated Brillouin scattering (SBS) in high power single-mode fiber amplifiers. The time dependent model incorporates both laser and Stokes wave amplification and initiates the Brillouin scattering from thermal phonons. A frequency chirped laser is used as the seed to suppress SBS. Experiments with Yb-doped fiber amplifiers show good agreement with the modeling. Using experimentally determined parameters, the model is used to predict chirp requirements for multi-kilowatt amplifiers with tens of meters of delivery fiber. A comparison is made between a chirped seed source and random phase modulation for SBS suppression.
Additional Information
© 2013 IEEE. Manuscript received July 15, 2013; revised September 29, 2013; accepted October 8, 2013. Date of publication October 10, 2013; date of current version October 23, 2013. This work was supported by High Energy Laser Joint Technology Office under Grants 11-SA-0405 and SA-13-0509 as well as the U.S. Army Research Office under Grant W911NF-11-2-0081. Special thanks to Dr. Carl Mungan (US Naval Academy), Dr. Scott Christensen (Nufern), and Dr. J. Thomas Schriempf (NAVSEA), for helpful discussions and the loan of the high power amplifier.Additional details
- Eprint ID
- 42625
- Resolver ID
- CaltechAUTHORS:20131121-133941917
- 11-SA-0405
- High Energy Laser Joint Technology Office
- SA-13-0509
- High Energy Laser Joint Technology Office
- W911NF-11-2-0081
- Army Research Office (ARO)
- Created
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2013-11-21Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field