The output characteristics of the conventional one-stage Raman fiber laser (RFL) are described in an optical wave turbulence formalism. Simple analytical expressions describing RFL output power and its spectral shape are presented, and square-root law for the output spectrum broadening law has been discovered. The indications of the turbulent-like spectral broadening in other types of cw fiber lasers and propagation phenomena in fibers are also discussed.
© 2008 Optical Society of America
Original Manuscript: December 10, 2007
Revised Manuscript: February 11, 2008
Manuscript Accepted: February 19, 2008
Published: March 14, 2008
S. A. Babin, D. V. Churkin, A. E. Ismagulov, S. I. Kablukov, and E. V. Podivilov, "Turbulence-induced square-root broadening of the Raman fiber laser output spectrum," Opt. Lett. 33, 633-635 (2008)