Optical solitons in anisotropic and inhomogeneous media

Edwards, M.E., Crutcher, S.H., Aggarwal, M.D., Jaenisch, H.M., Osei, A.J., and Bairavarasu, S.A. (2004) Optical solitons in anisotropic and inhomogeneous media. In: Proceedings of SPIE (5255) pp. 163-171. From: Laser Beam Shaping V, 2 August 2004, Denver, Colarado, USA.

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Short pulse spectral content becomes modified while propagating in dispersive media. However, in dispersive nonlinear media, optical pulses resulting in solitary waves maintain their existence if proper balance is established between nonlinear self-phase modulation on the one hand and linear dispersion on the other. Such invariance pulse shape is critical for data transfer reliability in telecommunication technologies. Robust solitary waves that emerge from collisions unaltered are called solitons. During propagation of optical solitons in inhomogeneous media their trajectories are observed to deviate from straight-line paths to that of oscillatory behavior. Here, we use a spatial optical soliton solution to the nonlinear Schrödinger equation in an inhomogeneous triangular refractive index profile as a small index perturbation to illustrate the oscillation motion. We determine the effective acceleration, give the period of oscillation, and compare results with the Gaussian refractive index profile. Such spatial solitons behave as point masses existing in a Newtonian gravitational potential hole. This novel transverse oscillatory behavior, occurring for various refractive index profiles, results from an effectively bounded acceleration.

Item ID: 27648
Item Type: Conference Item (Research - E1)
ISSN: 1996-756X
Keywords: solitons; refractive index profile; inhomogeneity; acceleration; oscillations; perturbation
Date Deposited: 05 Jul 2013 05:26
FoR Codes: 02 PHYSICAL SCIENCES > 0205 Optical Physics > 020599 Optical Physics not elsewhere classified @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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