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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 18 — Jun. 20, 2009
  • pp: 3424–3428

Reduction of gain depletion and saturation on a Brillouin–erbium fiber laser utilizing a Brillouin pump preamplification technique

Mohammed Hayder Al-Mansoori and Mohd Adzir Mahdi  »View Author Affiliations


Applied Optics, Vol. 48, Issue 18, pp. 3424-3428 (2009)
http://dx.doi.org/10.1364/AO.48.003424


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Abstract

This paper presents the characteristics of a multiwavelength L-band Brillouin–erbium comb fiber laser with a preamplified Brillouin pump (BP) power technique at low pumping powers. The issue of erbium-doped fiber gain depletion and Brillouin gain saturation are resolved by the proposed structure. For long single-mode fiber length, the Stokes line emission occurs at low pumping powers because of the high strength of spontaneous Brillouin scattering, which provides a strong seed for coherent regenerative amplification of the Stokes line in the laser cavity. The laser structure achieves a low threshold power of 17 mW and is able to produce high number of output channels at low pumping powers. We experimentally show that the fiber laser structure can produce up to 37 channels at 55 and 0.045 mW of 1480 nm pump and BP powers, respectively.

© 2009 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4480) Lasers and laser optics : Optical amplifiers
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 29, 2009
Revised Manuscript: May 6, 2009
Manuscript Accepted: May 29, 2009
Published: June 11, 2009

Citation
Mohammed Hayder Al-Mansoori and Mohd Adzir Mahdi, "Reduction of gain depletion and saturation on a Brillouin-erbium fiber laser utilizing a Brillouin pump preamplification technique," Appl. Opt. 48, 3424-3428 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-18-3424

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