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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 1 — Jan. 1, 1998
  • pp: 223–231

Raman-induced redshift of ultrashort mode-locked laser pulses

H. A. Haus, I. Sorokina, and E. Sorokin  »View Author Affiliations


JOSA B, Vol. 15, Issue 1, pp. 223-231 (1998)
http://dx.doi.org/10.1364/JOSAB.15.000223


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Abstract

A resonant Raman line is shown to cause a redshift of the pulse spectrum within every pass through the resonator of a mode-locked laser. The filtering action of the mirror reflectivity or any other action that confines the spectrum counterbalances the shift. The net effect is that the center frequency of the pulse spectrum deviates from the center of the filter response. The net shift caused by a set of lines is the sum of the individual shifts. The Raman shift leads to a net gain reduction and thus to a limit on the achievable pulse width. The process is similar to yet different from the well-known soliton carrier frequency shift that is due to the delayed Kerr effect in fibers.

© 1998 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(190.5650) Nonlinear optics : Raman effect

Citation
H. A. Haus, I. Sorokina, and E. Sorokin, "Raman-induced redshift of ultrashort mode-locked laser pulses," J. Opt. Soc. Am. B 15, 223-231 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-1-223

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