High speed reconfigurable logic gates based on single semiconductor optical amplifier | Zendy

Jianji Dong | Zendy; Xinliang Zhang | Zendy; Yang Wang | Zendy; Dexiu Huang | Zendy

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High speed reconfigurable logic gates based on single semiconductor optical amplifier

Author(s) -

Jianji Dong,

Xinliang Zhang,

Yang Wang,

Dexiu Huang

Publication year - 2008

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.57.2222

Subject(s) - optical amplifier , modulation (music) , xnor gate , logic gate , bandwidth (computing) , computer science , electronic engineering , optoelectronics , physics , optics , telecommunications , nand gate , laser , algorithm , engineering , acoustics

The nonlinearities of a semiconductor optical amplifier (SOA) are exploited to realize various all-optical signal processing at ultrahigh speed. We demonstrate reconfigurable logic gates with XNOR, AND, NOR, OR, and NOT functions based on various nonlinearities of single SOA, including four-wave mixing, cross gain modulation and transient cross phase modulation. Since the modulation speed of the SOA is limited by the recovery time of carrier density, a detuning optical bandpass filter with 0.32nm-bandwidth follows the SOA to enhance the modulation speed. Multi-logic gates at 40Gbit/s are obtained with single SOA.

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