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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14379
Title: Soliton states in a nonlinear directional coupler with intermodal dispersion
Authors: Rastogi, Vipul K.
Chiang K.S.
Akhmediev N.N.
Published in: Physics Letters, Section A: General, Atomic and Solid State Physics
Abstract: We study numerically the propagation of short optical pulses in a nonlinear directional coupler that possesses significant intermodal dispersion. Using the split-step method with fast Fourier transform, we calculate the soliton solutions of such a coupler and highlight the effect of intermodal dispersion on the propagation dynamics of the pulses. We find that the intermodal dispersion has only a small effect on the shape of the soliton states, in spite of the fact that it can distort and break up low-energy pulses launched into one arm of the coupler. The intermodal dispersion, however, can cause a drift in the velocity of the soliton pulses. © 2002 Elsevier Science B.V. All rights reserved.
Citation: Physics Letters, Section A: General, Atomic and Solid State Physics (2002), 301(43862): 27-34
URI: https://doi.org/10.1016/S0375-9601(02)00966-0
http://repository.iitr.ac.in/handle/123456789/14379
Issue Date: 2002
Publisher: Elsevier
Keywords: Intermodal dispersion
Nonlinear directional couplers
Nonlinear fiber optics
Optical switches
Pulse propagation
Solition
ISSN: 3759601
Author Scopus IDs: 7006364661
16309003700
7004817995
Author Affiliations: Rastogi, V., Optoelectronics Research Centre, Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
Chiang, K.S., Optoelectronics Research Centre, Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
Akhmediev, N.N., Optical Sciences Centre, Australian National University, Australian Capital Territory 0200, Australia
Funding Details: The work was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. CityU 1023/97E). N.N. Akhmediev is a member of the Australian Photonics Co-operative Centre (APCRC).
Corresponding Author: Rastogi, V.; Optoelectronics Research Centre, Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong; email: rastogi@ee.cityu.edu.hk
Appears in Collections:Journal Publications [PH]

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