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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 2052–2055

3.77  μm fiber laser based on cascaded Raman gain in a chalcogenide glass fiber

Martin Bernier, Vincent Fortin, Mohammed El-Amraoui, Younès Messaddeq, and Réal Vallée  »View Author Affiliations

Optics Letters, Vol. 39, Issue 7, pp. 2052-2055 (2014)

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Laser emission is demonstrated at a wavelength of 3.766 μm in a cascaded Raman gain device. The laser cavity is made of two nested pairs of fiber Bragg gratings inscribed in a 2.8 m length of low-loss As2S3 fiber. An erbium-doped fluoride glass quasi-CW fiber laser emitting at 3.005 μm is used to pump the cascaded Raman cavity, which converts the pump wavelength successively to the first and second Stokes orders, respectively at 3.340 and 3.766 μm. A laser output peak power in excess of 100 mW is obtained with a lasing efficiency of about 8.3% with respect to the launched pump power. This represents the highest emission wavelength delivered by a fiber laser operating at room temperature.

© 2014 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3550) Lasers and laser optics : Lasers, Raman
(230.1480) Optical devices : Bragg reflectors

ToC Category:
Lasers and Laser Optics

Original Manuscript: February 4, 2014
Revised Manuscript: March 3, 2014
Manuscript Accepted: March 4, 2014
Published: March 26, 2014

Martin Bernier, Vincent Fortin, Mohammed El-Amraoui, Younès Messaddeq, and Réal Vallée, "3.77  μm fiber laser based on cascaded Raman gain in a chalcogenide glass fiber," Opt. Lett. 39, 2052-2055 (2014)

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