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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 18, Iss. 3 — Mar. 1, 2001
  • pp: 388–393

Effect of third-order dispersion on the phases of solitonlike Cr4+:YAG-laser pulses characterized by the second-harmonic generation frequency-resolved optical gating method

Tatsuya Tomaru and Hrvoje Petek  »View Author Affiliations


JOSA B, Vol. 18, Issue 3, pp. 388-393 (2001)
http://dx.doi.org/10.1364/JOSAB.18.000388


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Abstract

The effect of third-order dispersion on solitonlike operation of the L-fold cavity Cr4+:YAG laser is studied. Dispersion equations are derived to the fourth order for an L-fold cavity, and dispersion values for a Cr4+:YAG laser are calculated. Third-order dispersion is found to be comparable with the second-order dispersion in a 60-fs-class Cr4+:YAG laser, and fourth-order dispersion is negligible. The temporal and spectral phases of a 60-fs pulse are calculated from the dispersion properties of the cavity. The spectral phase is constant, despite considerable third-order dispersion. A second-harmonic generation (SHG) frequency-resolved optical gating (FROG) trace is calculated for the simulated pulse. The SHG spectrum has a tail to the short-wavelength side at zero delay, consistent with experimental results. The calculated phase and the FROG trace should be recognized as characteristic of the third-order-dispersion effect on solitonlike lasers.

© 2001 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.1590) Ultrafast optics : Chirping
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7100) Ultrafast optics : Ultrafast measurements

Citation
Tatsuya Tomaru and Hrvoje Petek, "Effect of third-order dispersion on the phases of solitonlike Cr4+ : YAG-laser pulses characterized by the second-harmonic generation frequency-resolved optical gating method," J. Opt. Soc. Am. B 18, 388-393 (2001)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-18-3-388

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