Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5388
Title: Robust pedestal-free pulse compression in cubic-quintic nonlinear media
Authors: Senthilnathan, K
Li, Q
Nakkeeran, K
Wai, PKA 
Keywords: Amplification
Computer simulation
Data compression
Dispersion (waves)
Light pulse generators
Nonlinear equations
Issue Date: Sep-2008
Publisher: American Physical Society
Source: Physical review. A, Atomic, molecular, and optical physics, Sept. 2008, v. 78, no. 3, 033835, p. 1-12 How to cite?
Journal: Physical review. A, Atomic, molecular, and optical physics 
Abstract: We consider the evolution of nonlinear optical pulses in cubic-quintic nonlinear media wherein the pulse propagation is governed by the generalized nonlinear Schrödinger equation with exponentially varying dispersion, cubic, and quintic nonlinearities and gain and/or loss. Using a self-similar analysis, we find the chirped bright soliton solutions in the anomalous and normal dispersion regimes. From a stability analysis, we show that the soliton in the anomalous dispersion regime is stable, whereas the soliton in the normal dispersion regime is unstable. Numerical simulation results show that competing cubic-quintic nonlinearities stabilize the chirped soliton pulse propagation against perturbations in the initial soliton pulse parameters. We characterize the quality of the compressed pulse by determining the pedestal energy generated and compression factor when the initial pulse is perturbed from the soliton solutions. Finally, we study the possibility of rapid compression of Townes solitons by the collapse phenomenon and the exponentially decreasing dispersion. We find that the collapse could be postponed if the dispersion increases exponentially.
URI: http://hdl.handle.net/10397/5388
ISSN: 1050-2947
EISSN: 1094-1622
DOI: 10.1103/PhysRevA.78.033835
Rights: Physical Review A © 2008 The American Physical Society. The Journal's web site is located at http://pra.aps.org/
Appears in Collections:Journal/Magazine Article

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