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Optics Letters

Optics Letters

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  • Vol. 23, Iss. 13 — Jul. 1, 1998
  • pp: 1007–1009

High-speed properties of a phase-modulation scheme based on electromagnetically induced transparency

H. Schmidt and A. Imamoğlu  »View Author Affiliations


Optics Letters, Vol. 23, Issue 13, pp. 1007-1009 (1998)
http://dx.doi.org/10.1364/OL.23.001007


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Abstract

Recently a cross-phase modulation scheme that yields giant Kerr nonlinearities by use of an electromagnetically induced transparency (EIT) was proposed [Schmidt and Imamoğlu, Opt. Lett. 21, 1936 (1996)]. We analyze the high-speed properties of this scheme for short-pulse propagation. We discuss the relevant losses in this system and show that for short pulses one-photon losses are dominant. We demonstrate that over the entire bandwidth the attainable phase shift in an EIT scheme with a quasi-cw coupling field is orders of magnitude higher than in a conventional three-level scheme or in EIT schemes, in which matched pulses are used to create the transparency.

© 1998 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(060.5060) Fiber optics and optical communications : Phase modulation
(190.3270) Nonlinear optics : Kerr effect
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

Citation
H. Schmidt and A. Imamoğlu, "High-speed properties of a phase-modulation scheme based on electromagnetically induced transparency," Opt. Lett. 23, 1007-1009 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-13-1007

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