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Optics Letters

Optics Letters


  • Vol. 36, Iss. 16 — Aug. 15, 2011
  • pp: 3290–3292

Gray solitons in parity-time symmetric potentials

Huagang Li, Zhiwei Shi, Xiujuan Jiang, and Xing Zhu  »View Author Affiliations

Optics Letters, Vol. 36, Issue 16, pp. 3290-3292 (2011)

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We numerically study the gray solitons in parity-time (PT) symmetric potentials. Simulated results show that there are two kinds of gray solitons, the dip-shaped gray solitons and the hump-shaped solitons, and both of them can be stable. Hump-shaped solitons can always exist, but the grayness of a stable dip-shaped gray soliton should exceed a threshold value. More interesting, it is discovered that when propagating in PT symmetric potentials, the gray solitons have no transverse deviation, and this is a phenomenon different from the usual gray solitons.

© 2011 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

Original Manuscript: May 26, 2011
Revised Manuscript: July 26, 2011
Manuscript Accepted: July 28, 2011
Published: August 15, 2011

Huagang Li, Zhiwei Shi, Xiujuan Jiang, and Xing Zhu, "Gray solitons in parity-time symmetric potentials," Opt. Lett. 36, 3290-3292 (2011)

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