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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 25 — Dec. 6, 2010
  • pp: 26214–26228

Theoretical analysis of single-frequency Raman fiber amplifier system operating at 1178nm

Christopher Vergien, Iyad Dajani, and Clint Zeringue  »View Author Affiliations

Optics Express, Vol. 18, Issue 25, pp. 26214-26228 (2010)

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We analyze the scalability of amplifying the output from a single-frequency diode laser operating at 1178 nm through the utilization of a core pumped Raman fiber amplifier. A detailed model that accounts for stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) in relation to the fiber mode field diameter, length, seed power, and available pump power in both co-pumped and counter-pumped configurations is developed. The backward travelling Stokes light is initiated from both spontaneous Brillouin and spontaneous Raman processes. It is found that when fiber length is optimized, the amplifier output scales linearly with available pump power. Although higher amplifier efficiency is obtained with higher seed power, the output power diminishes. In order to mitigate the SBS process for further power scaling, we employ and optimize a multi-step temperature distribution. Finally, we consider the feasibility of generating the D2a and D2b lines in a sodium guide star beacon from a single Raman amplifier by examining four-wave mixing (FWM).

© 2010 OSA

OCIS Codes
(140.3550) Lasers and laser optics : Lasers, Raman
(290.5900) Scattering : Scattering, stimulated Brillouin
(290.5910) Scattering : Scattering, stimulated Raman

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 30, 2010
Revised Manuscript: October 15, 2010
Manuscript Accepted: November 4, 2010
Published: December 1, 2010

Christopher Vergien, Iyad Dajani, and Clint Zeringue, "Theoretical analysis of single-frequency Raman fiber amplifier system operating at 1178nm," Opt. Express 18, 26214-26228 (2010)

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