## Depletion of control field during the propagation of ultraslow optical solitons

JOSA B, Vol. 26, Issue 11, pp. 2028-2034 (2009)

http://dx.doi.org/10.1364/JOSAB.26.002028

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### Abstract

We study nonlinear excitations in a lifetime-broadened *Λ*-type three-level atomic system with a configuration of electromagnetically induced transparency. Different from previous works, we show that a significant depletion of the control field may occur during the formation and propagation of ultraslow optical solitons for the probe field. We demonstrate that ultraslow optical solitons predicted in previous works correspond to the limits of weak dispersion and weak nonlinearity, adiabatons correspond to the limits of stronger dispersion and stronger nonlinearity, and simultons correspond to the limits of strong dispersion and strong nonlinearity. Between these different limits the system also yields solitonlike nonlinear excitations with different levels of depletion of the control field. The results provided here are useful not only for a deep understanding of the interrelation between ultraslow optical solitons, adiabatons, and simultons, but also for potential applications in optical information processing and transmission.

© 2009 Optical Society of America

**OCIS Codes**

(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

(270.1670) Quantum optics : Coherent optical effects

(270.5530) Quantum optics : Pulse propagation and temporal solitons

**ToC Category:**

Quantum Optics

**History**

Original Manuscript: June 19, 2009

Revised Manuscript: August 27, 2009

Manuscript Accepted: August 28, 2009

Published: October 9, 2009

**Citation**

Hui-jun Li, Chao Hang, and Guoxiang Huang, "Depletion of control field during the propagation of ultraslow optical solitons," J. Opt. Soc. Am. B **26**, 2028-2034 (2009)

http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-11-2028

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