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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 15 — Aug. 1, 2006
  • pp: 2350–2352

Low-light-level all-optical switching

Chang-Yi Wang, Yong-Fan Chen, Sheng-Chiun Lin, Wei-Hsun Lin, Pei-Chen Kuan, and Ite A. Yu  »View Author Affiliations

Optics Letters, Vol. 31, Issue 15, pp. 2350-2352 (2006)

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We propose an all-optical switch that utilizes the technique of storage and retrieval of light pulses. A single photon (probe pulse) switched by another (switching pulse) is feasible, and the on–off ratio can be as large as 10 dB . We have experimentally demonstrated that the energy of the retrieved probe pulse is reduced to about 10% because of the presence of a switching pulse with an energy per unit area of one photon per λ 2 ( 2 π ) . The achieved result does not depend on the coupling intensity, the atomic optical density, or the width and shape of the switching pulse.

© 2006 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(190.0190) Nonlinear optics : Nonlinear optics
(270.1670) Quantum optics : Coherent optical effects

ToC Category:
Quantum Optics

Original Manuscript: April 5, 2006
Manuscript Accepted: May 18, 2006
Published: July 10, 2006

Chang-Yi Wang, Yong-Fan Chen, Sheng-Chiun Lin, Wei-Hsun Lin, Pei-Chen Kuan, and Ite A. Yu, "Low-light-level all-optical switching," Opt. Lett. 31, 2350-2352 (2006)

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