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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 15 — Jul. 18, 2011
  • pp: 14152–14159

Spectral variations of the output spectrum in a random distributed feedback Raman fiber laser

A. R. Sarmani, M. H. Abu Bakar, A. A. A. Bakar, F. R. Mahamd Adikan, and M. A. Mahdi  »View Author Affiliations

Optics Express, Vol. 19, Issue 15, pp. 14152-14159 (2011)

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We report an ultra-long Raman laser that implemented a variable pumping scheme in backward and forward configurations. Rayleigh backscattering effects were realized in the 51 km fiber length that functioned as a virtual mirror at one fiber end. With the employment of a fiber Bragg grating that has a peak reflection wavelength at 1553.3 nm, spectral broadening effects were observed. These occurred as the pump power level was diverted more to the forward direction. Owing to this fact, a maximum width of 0.9 nm was measured at 100% forward pumping. The obtained results show that the efficient exploitation of four-wave mixing interactions as well as strong Rayleigh backscattering are beneficial to influence the lasing performances. Both of these nonlinear responses can be adjusted by varying pumping distributions along the fiber longitudinal dimension.

© 2011 OSA

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(290.5870) Scattering : Scattering, Rayleigh
(290.5910) Scattering : Scattering, stimulated Raman

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 18, 2011
Revised Manuscript: June 22, 2011
Manuscript Accepted: June 28, 2011
Published: July 11, 2011

A. R. Sarmani, M. H. Abu Bakar, A. A. A. Bakar, F. R. Mahamd Adikan, and M. A. Mahdi, "Spectral variations of the output spectrum in a random distributed feedback Raman fiber laser," Opt. Express 19, 14152-14159 (2011)

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