Flexible Optical Code Label Generation and Processing Using LiNbO Modulators and Variable Bandwidth Spectrum Shaper

Mitsuko Mieno, Hiroki Watanabe, Hirochika Nakajima, Satoshi Shinada, Naoya Wada

    研究成果: Article査読

    1 被引用数 (Scopus)

    抄録

    We proposed and demonstrated flexible optical code label generation and processing using LiNbO3 (LN) modulators and a variable-bandwidth spectrum shaper. First we used a transversal filter (TVF) as a decoder and performed a simulation of optical encoding and decoding to confirm basic code characteristics by taking into consideration the characteristics of O/E conversion and threshold processing. The experiments were performed using with 4 chip, 10 Gchip/s BPSK codes to verify the simulation results. We found that these codes had sufficient threshold margins for code discrimination in the simulation, and this result was in good agreement with experimental results. Then, to handle variable BPSK codes, we used LN modulators as an encoder and a TVF as a decoder. To handle more variable BPSK codes, we proposed and experimentally demonstrated optical code generation and processing using LN modulators and a variable-bandwidth spectrum shaper (VBS). This method is capable of flexible optical encoding and decoding and high-precision control in the spectral domain. We confirmed correct discrimination between matched and unmatched coded by threshold processing in a simulation and experiment using 8 chip, 20 Gchip/s codes. Finally, by encoding pulses in the Non-Return-to-Zero (NRZ) format, we increased the number of discriminable coded with 8 chip, 40 Gchip/s NRZ BPSK codes.

    本文言語English
    ページ(範囲)3456-3462
    ページ数7
    ジャーナルJournal of Lightwave Technology
    30
    22
    DOI
    出版ステータスPublished - 2012

    ASJC Scopus subject areas

    • 原子分子物理学および光学

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