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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 23 — Nov. 9, 2009
  • pp: 21222–21227

Strong tunable slow and fast lights using a gain-clamped semiconductor optical amplifier

S. H. Moon, J. Park, J. M. Oh, N. J. Kim, D. Lee, S. W. Chang, D. Nielsen, and S. L. Chuang  »View Author Affiliations

Optics Express, Vol. 17, Issue 23, pp. 21222-21227 (2009)

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Previously demonstrated slow light is still far from applications, particularly due to the limited bandwidth and control speed. Although semiconductor-based slow light has the high bandwidth and sub-nanosecond control speed, slow light was observed only in the absorption regime with attenuation, while fast light observed in the gain regime with amplification. The large power difference in two regimes makes the use of the optical delay impractical. We report novel slow light in the gain regime, with a high power comparable to that of fast light, utilizing the anomalous gain characteristic in a gain-clamped semiconductor optical amplifier. The slow light is tunable to fast light with the current as the only variable. Additional high speed operation, fast delay control, and wide range of operation wavelength make the present approach practical.

© 2009 OSA

OCIS Codes
(270.1670) Quantum optics : Coherent optical effects
(230.4480) Optical devices : Optical amplifiers

ToC Category:
Slow and Fast Light

Original Manuscript: September 14, 2009
Revised Manuscript: October 28, 2009
Manuscript Accepted: November 3, 2009
Published: November 6, 2009

S. H. Moon, J. Park, J. M. Oh, N. J. Kim, D. Lee, S. W. Chang, D. Nielsen, and S. L. Chuang, "Strong tunable slow and fast lights using
 a gain-clamped semiconductor optical amplifier," Opt. Express 17, 21222-21227 (2009)

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