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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 21 — Oct. 12, 2009
  • pp: 19067–19074

Demonstration of a 3 mW threshold Er-doped random fiber laser based on a unique fiber Bragg grating

Mathieu Gagné and Raman Kashyap  »View Author Affiliations

Optics Express, Vol. 17, Issue 21, pp. 19067-19074 (2009)

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We demonstrate a novel random laser based on a single fiber Bragg grating. A long fiber Bragg grating fabrication technique allows the insertion of a large number of randomly distributed phase errors in the structure of the grating which induces light localization. By writing such a grating in a polarisation maintaining Er-doped fiber, a random laser is demonstrated by pumping the fiber with 976 and 1480 nm pump lasers. The number of emitted modes is observed to be a function of the length of the grating and of the pump power and single-mode operation is shown to be possible. The random fiber laser shows low-threshold (~3 mW) and measured ~0.5 pm emission linewidth at a wavelength of around 1534 nm.

© 2009 OSA

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(290.4210) Scattering : Multiple scattering
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 3, 2009
Revised Manuscript: September 6, 2009
Manuscript Accepted: September 6, 2009
Published: October 8, 2009

Mathieu Gagné and Raman Kashyap, "Demonstration of a 3 mW threshold Er-doped random fiber laser based on a unique fiber Bragg grating," Opt. Express 17, 19067-19074 (2009)

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