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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 3 — Feb. 2, 2009
  • pp: 1404–1413

The role of input chirp on phase shifters based on slow and fast light effects in semiconductor optical amplifiers

Weiqi Xue, Yaohui Chen, Filip Öhman, and Jesper Mørk  »View Author Affiliations

Optics Express, Vol. 17, Issue 3, pp. 1404-1413 (2009)

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We experimentally investigate the initial chirp dependence of slow and fast light effects in a semiconductor optical amplifier followed by an optical filter. It is shown that the enhancement of the phase shift due to optical filtering strongly depends on the chirp of the input optical signal. We demonstrate ~120° phase delay as well as ~170° phase advance at a microwave frequency of 19 GHz for different optimum values of the input chirp. The experimental results are shown to be in good agreement with numerical results based on a four-wave mixing model. Finally, a simple physical explanation based on an analytical perturbative approach is presented.

© 2009 Optical Society of America

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(130.5990) Integrated optics : Semiconductors
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Optical Devices

Original Manuscript: September 24, 2008
Revised Manuscript: January 15, 2009
Manuscript Accepted: January 16, 2009
Published: January 22, 2009

Weiqi Xue, Yaohui Chen, Filip Öhman, and Jesper Mørk, "The role of input chirp on phase shifters based on slow and fast light effects in semiconductor optical amplifiers," Opt. Express 17, 1404-1413 (2009)

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