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Optics Express

Optics Express

  • Editor: Martijn de Sterke
  • Vol. 16, Iss. 20 — Sep. 29, 2008
  • pp: 15970–15979

Brillouin scattering spectra in high-power singlefrequency ytterbium doped fiber amplifiers

Matthias Hildebrandt, Sebastian Büsche, Peter Weßels, Maik Frede, and Dietmar Kracht  »View Author Affiliations


Optics Express, Vol. 16, Issue 20, pp. 15970-15979 (2008)
http://dx.doi.org/10.1364/OE.16.015970


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Abstract

We report on theoretical and experimental investigations on spontaneous and stimulated Brillouin scattering during operation of a high-power single-frequency polarization-maintaining ytterbium doped fiber amplifier. For different amplifier configurations with co- and counter-propagating seed and pump radiation the evolution of Brillouin scattering spectra was investigated with a heterodyne detection scheme. Spontaneous Brillouin gain spectra at low powers were additionally investigated using a pump-probe technique. The data obtained from these experiments have been compared with a theoretical model based on coupled intensity equations. A Brillouin scattering suppression has been investigated theoretically and experimentally with externally applied temperature gradients along the fiber resulting in up to 3.5 dB suppression and 115 W of amplifier output power.

© 2008 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(290.5830) Scattering : Scattering, Brillouin

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 9, 2008
Revised Manuscript: September 15, 2008
Manuscript Accepted: September 21, 2008
Published: September 24, 2008

Citation
Matthias Hildebrandt, Sebastian Buesche, Peter Weβels, Maik Frede, and Dietmar Kracht, "Brillouin scattering spectra in high-power single-frequency ytterbium doped fiber amplifiers," Opt. Express 16, 15970-15979 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-20-15970


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References

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