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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 12 — Jun. 13, 2005
  • pp: 4731–4736

Highly efficient free running cascaded Raman fiber laser that uses broadband pumping

Yucheng Zhao and Stuart D. Jackson  »View Author Affiliations

Optics Express, Vol. 13, Issue 12, pp. 4731-4736 (2005)

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A 3rd-order cascaded Raman fiber laser has been demonstrated without using fiber Bragg gratings at all in the entire laser system. More than 2 W output power at the 3rd Stokes emission wavelength of 1307 nm, a bandwidth of 4.2 nm and a slope efficiency of ~46% was measured when a 500 m long moderately Ge-doped silica fiber was pumped by a free running broadband Yb3+-doped fiber laser. This method is simple, versatile and cheap when compared with conventional methods employing narrow band pumping and fiber Bragg gratings to resonate the Stokes wavelengths. A slope efficiency of ~72% and an output power of over 4 W was also achieved at the 1st order Stokes wavelength of 1168 nm when a 130 m long Ge-doped silica fiber was used.

© 2005 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3550) Lasers and laser optics : Lasers, Raman
(160.4330) Materials : Nonlinear optical materials
(290.5910) Scattering : Scattering, stimulated Raman

ToC Category:
Research Papers

Original Manuscript: May 12, 2005
Revised Manuscript: June 5, 2005
Published: June 13, 2005

Yucheng Zhao and Stuart Jackson, "Highly efficient free running cascaded Raman fiber laser that uses broadband pumping," Opt. Express 13, 4731-4736 (2005)

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