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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 11 — Nov. 1, 2000
  • pp: 1894–1900

Stability of nonlinear Bragg gratings with a finite material response time

Kazuhiko Ogusu  »View Author Affiliations


JOSA B, Vol. 17, Issue 11, pp. 1894-1900 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001894


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Abstract

A linear stability analysis to investigate the instabilities in nonlinear distributed-feedback gratings with a finite material response time is presented. The amplification (or attenuation) rate and the frequency of sinusoidal perturbations generated in the grating are calculated for different values of the material response time, detuning, and coupling strength. To give the full picture of the stability boundaries, stability maps are plotted in the two cases of a weak grating and a strong grating. The stable region can be enlarged by increasing a response time of the nonlinearity. The required response time increases with the grating strength. A comparison with numerical simulations of the coupled-mode equations is done to confirm the validity of the stability analysis.

© 2000 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(190.1450) Nonlinear optics : Bistability
(190.3100) Nonlinear optics : Instabilities and chaos
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

Citation
Kazuhiko Ogusu, "Stability of nonlinear Bragg gratings with a finite material response time," J. Opt. Soc. Am. B 17, 1894-1900 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-11-1894

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