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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 22 — Nov. 15, 2012
  • pp: 4796–4798

Stimulated-Brillouin-scattering-suppressed high-power single-frequency polarization-maintaining Raman fiber amplifier with longitudinally varied strain for laser guide star

Lei Zhang, Jinmeng Hu, Jianhua Wang, and Yan Feng  »View Author Affiliations


Optics Letters, Vol. 37, Issue 22, pp. 4796-4798 (2012)
http://dx.doi.org/10.1364/OL.37.004796


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Abstract

An up to 44 W, 1 MHz linewidth, 1178 nm CW laser is obtained by Raman amplification of a distributed feedback diode laser in a variably strained polarization-maintaining fiber with a record-high optical efficiency of 52%, pumped by a linearly polarized 1120 nm fiber laser. A polarization extinction ratio of 30 dB is achieved due to the all-polarization-maintaining configuration and the polarization dependence of Raman gain. The strain distribution is designed according to the signal power evolution along the fiber. A 20 times reduction in the effective stimulated Brillouin scattering coefficient is achieved. A 24.3 W 589 nm laser is generated by an external resonant doubling cavity with an optical efficiency of 68.5%. The laser is locked to 589.1591 nm for a laser guide star.

© 2012 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3550) Lasers and laser optics : Lasers, Raman
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 29, 2012
Revised Manuscript: September 30, 2012
Manuscript Accepted: October 4, 2012
Published: November 15, 2012

Citation
Lei Zhang, Jinmeng Hu, Jianhua Wang, and Yan Feng, "Stimulated-Brillouin-scattering-suppressed high-power single-frequency polarization-maintaining Raman fiber amplifier with longitudinally varied strain for laser guide star," Opt. Lett. 37, 4796-4798 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-22-4796

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