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Optics Letters

Optics Letters


  • 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)

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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

H. Schmidt and A. Imamoğlu, "High-speed properties of a phase-modulation scheme based on electromagnetically induced transparency," Opt. Lett. 23, 1007-1009 (1998)

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