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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 5 — May. 1, 2013
  • pp: 1373–1381

Numerical simulation of a dispersion-managed active harmonically mode-locked fiber laser using a spectral double-grid technique

Anish Bekal and Balaji Srinivasan  »View Author Affiliations

JOSA B, Vol. 30, Issue 5, pp. 1373-1381 (2013)

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A comprehensive lumped model approach has been presented in this paper for the simulation of a dispersion-managed active mode-locked fiber laser. A key aspect of our model is that it operates simultaneously at two different spectral scales, corresponding to the gain bandwidth of the erbium-doped fiber and the frequency content of the mode-locked laser (MLL) pulse. The lumped model consists of a detailed amplifier model that is evolved using a predictor–corrector-based adaptive approach. Convergence analysis of this algorithm is also presented in this paper, highlighting the step size reduction achieved when the amplifier migrates from linear to saturation regime. A simple adaptive frequency domain approach is followed to control the fine grid spectral points and the coarse grid wavelengths. Such an approach has been used to simulate a harmonic MLL cavity in two widely different dispersion regimes facilitated by a pair of chirped fiber Bragg gratings. We validate our model by comparing such simulated results with carefully planned experiments.

© 2013 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3500) Lasers and laser optics : Lasers, erbium
(140.4050) Lasers and laser optics : Mode-locked lasers
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 21, 2012
Revised Manuscript: March 27, 2013
Manuscript Accepted: March 31, 2013
Published: May 1, 2013

Anish Bekal and Balaji Srinivasan, "Numerical simulation of a dispersion-managed active harmonically mode-locked fiber laser using a spectral double-grid technique," J. Opt. Soc. Am. B 30, 1373-1381 (2013)

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