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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 6 — Mar. 15, 2010
  • pp: 6156–6163

Wideband 360° microwave photonic phase shifter based on slow light in semiconductor optical amplifiers

Weiqi Xue, Salvador Sales, José Capmany, and Jesper Mørk  »View Author Affiliations

Optics Express, Vol. 18, Issue 6, pp. 6156-6163 (2010)

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In this work we demonstrate for the first time, to the best of our knowledge, a continuously tunable 360° microwave phase shifter spanning a microwave bandwidth of several tens of GHz (up to 40 GHz) by slow light effects. The proposed device exploits the phenomenon of coherent population oscillations, enhanced by optical filtering, in combination with a regeneration stage realized by four-wave mixing effects. This combination provides scalability: three hybrid stages are demonstrated but the technology allows an all-integrated device. The microwave operation frequency limitations of the suggested technique, dictated by the underlying physics, are also analyzed.

© 2010 OSA

OCIS Codes
(140.4480) Lasers and laser optics : Optical amplifiers
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Nonlinear Optics

Original Manuscript: January 12, 2010
Revised Manuscript: February 22, 2010
Manuscript Accepted: March 9, 2010
Published: March 11, 2010

Weiqi Xue, Salvador Sales, José Capmany, and Jesper Mørk, "Wideband 360° microwave photonic phase shifter based on slow light in semiconductor optical amplifiers," Opt. Express 18, 6156-6163 (2010)

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