Published July 2, 2012
| Published
Journal Article
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Suppression of stimulated Brillouin scattering in optical fibers using a linearly chirped diode laser
Abstract
The output of high power fiber amplifiers is typically limited by stimulated Brillouin scattering (SBS). An analysis of SBS with a chirped pump laser indicates that a chirp of 2.5 × 10^(15) Hz/s could raise, by an order of magnitude, the SBS threshold of a 20-m fiber. A diode laser with a constant output power and a linear chirp of 5 × 10^(15) Hz/s has been previously demonstrated. In a low-power proof-of-concept experiment, the threshold for SBS in a 6-km fiber is increased by a factor of 100 with a chirp of 5 × 10^(14) Hz/s. A linear chirp will enable straightforward coherent combination of multiple fiber amplifiers, with electronic compensation of path length differences on the order of 0.2 m.
Additional Information
© 2012 Optical Society of America. Received 11 May 2012; revised 13 Jun 2012; accepted 15 Jun 2012; published 27 Jun 2012. This work has been supported by High Energy Laser Joint Technology Office contract 11- SA-0405. We are also grateful for continuing technical input from Scott Christensen, John Edgecumbe, and Imtiaz Majid at Nufern.Attached Files
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Additional details
- Eprint ID
- 32994
- Resolver ID
- CaltechAUTHORS:20120807-153614740
- 11-SA-0405
- High Energy Laser Joint Technology Office
- Created
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2012-08-07Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field