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VOLUME 82, NUMBER 13 P H Y S I C A L R E V I E W L E T T E R S 29 MARCH 1999 Partially Coherent Solitons on a Finite Background
 

Summary: VOLUME 82, NUMBER 13 P H Y S I C A L R E V I E W L E T T E R S 29 MARCH 1999
Partially Coherent Solitons on a Finite Background
Nail Akhmediev and Adrian Ankiewicz
Australian Photonics CRC, Optical Sciences Centre, Research School of Physical Sciences and Engineering,
Australian National University, Canberra ACT 0200, Australia
(Received 3 December 1998)
We have found a new class of exact solutions for multicomponent partially coherent solitons in
photorefractive media with a drift mechanism of nonlinear response. Their novel feature is that the
composite M-component sech-shaped soliton is located on a constant-background plane wave. The
solutions are characterized by two free parameters and these are related to the maximum intensity of
the composite soliton and to the amplitude of the background. [S0031-9007(99)08778-5]
PACS numbers: 42.65.Tg, 05.45.Yv
The concept of incoherent solitons, both in time [1] and
in space [2,3], has recently attracted considerable atten-
tion [4], especially since the first experimental demonstra-
tion of their existence [5]. Photorefractive media are the
most appropriate for experimental observations, as they
require only extremely low optical powers [6,7]. Theo-
retical descriptions of incoherent solitons have been pre-
sented based on various principles. Approaches based

  

Source: Akhmediev, Nail - Research School of Physical Sciences and Engineering, Australian National University

 

Collections: Physics; Engineering