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

Weiqi Xue | Zendy; Salvador Sales | Zendy; J. Capmany | Zendy; Jesper Mørk | Zendy

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

Author(s) -

Weiqi Xue,

Salvador Sales,

J. Capmany,

Jesper Mørk

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.006156

Subject(s) - microwave , wideband , phase shift module , bandwidth (computing) , optics , optical amplifier , photonics , optoelectronics , materials science , electronic engineering , physics , computer science , telecommunications , laser , engineering

In this work we demonstrate for the first time, to the best of our knowledge, a continuously tunable 360 degrees microwave phase shifter spanning a microwave bandwidth of several tens of GHz (up to 40 GHz). 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.

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