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Optics Letters

Optics Letters


  • Vol. 36, Iss. 16 — Aug. 15, 2011
  • pp: 3272–3274

All-optically controlled concurrent slow-fast light pair

Anil K. Patnaik, Sukesh Roy, and James R. Gord  »View Author Affiliations

Optics Letters, Vol. 36, Issue 16, pp. 3272-3274 (2011)

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We demonstrate how both normal and anomalous dispersion can be realized concurrently for a pair of weak probes in a doubly driven double-ladder configuration with independent and simultaneous control for group velocities of the pair. We have shown both analytically and numerically that, because of electromagnetically induced transparency and a χ ( 3 ) -based gain process, a slow-fast light pair can be realized in the same delay element with group indices ± 10 7 accompanied by gain or relatively small absorption (down to 25 % ). We also identify parameter regions for realization of concurrent slow-slow and fast-fast light pairs with reduced absorptions.

© 2011 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(190.4180) Nonlinear optics : Multiphoton processes
(270.1670) Quantum optics : Coherent optical effects
(270.5530) Quantum optics : Pulse propagation and temporal solitons

ToC Category:
Quantum Optics

Original Manuscript: July 7, 2011
Manuscript Accepted: July 22, 2011
Published: August 15, 2011

Anil K. Patnaik, Sukesh Roy, and James R. Gord, "All-optically controlled concurrent slow-fast light pair," Opt. Lett. 36, 3272-3274 (2011)

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