Experimental study on all optical coding and decoding of short pulses at 40‐Gbit/s | Zendy

Chen Xiaogang | Zendy; Huang Dexiu | Zendy; Yuan Xiuhua | Zendy; Xia Ge | Zendy

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Experimental study on all optical coding and decoding of short pulses at 40‐Gbit/s

Author(s) -

Chen Xiaogang,

Huang Dexiu,

Yuan Xiuhua,

Xia Ge

Publication year - 2007

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.22747

Subject(s) - encoder , decoding methods , chip , optics , multiplexing , electronic engineering , fiber bragg grating , engineering , physics , computer science , optical fiber , telecommunications , operating system

A 7‐chip, 280‐Gchip/s quaternary phase‐shift code is assigned to short pulses after reflection from an encoder, the code is then recognized by a decoder. The encoder and decoder, consisting of superstructured fiber Bragg gratings (SSFBGs), are fabricated using the equivalent‐phase‐shift method; only ordinary phase masks and submicrometer precision in control are required. The quaternary phase encoding and decoding of short pulses at 40‐Gbit/s is experimentally demonstrated, and it is required in optical code division multiplexing (OCDM) systems and packet‐switched networks. Interchannel interference noise is also considered and evaluated; a nonlinear optical loop mirror (NOLM) within the receiver is introduced to suppress the interference noise as well as additive noise. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2409–2412, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22747

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