| Issue |
EPL
Volume 94, Number 4, May 2011
|
|
|---|---|---|
| Article Number | 44004 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/94/44004 | |
| Published online | 16 May 2011 | |
Thermal lensing-induced bifocusing of spatial solitons in Kerr-type optical media
Laboratory of Research on Advanced Materials and Nonlinear Science (LaRAMaNS), Department of Physics, Faculty of Science, University of Buea - P.O. Box 63 Buea, Cameroon
Received:
12
February
2011
Accepted:
9
April
2011
Thermo-optical effects cause a bifocusing of incoming beams in optical media, due to the birefringence created by a thermal lens that can resolve the incoming beams into two-component signals of different polarizations. We propose a nonperturbative theoretical description of the process of formation of double-pulse solitons in Kerr optical media with a thermally induced birefringence, based on solving simultaneously the heat equation and the propagation equation for a beam in a one-dimensional medium with uniform heat flux load. By means of a nonisospectral Inverse Scattering Transform assuming an initial solution with a pulse shape, a one-soliton solution to the wave equation is obtained that represents a double-pulse beam whose characteristic properties depend strongly on the profile of heat spatial distribution.
PACS: 42.65.Tg – Optical solitons; nonlinear guided waves / 42.70.Gi – Light-sensitive materials / 44.10.+i – Heat conduction
© EPLA, 2011
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