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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 期刊論文 >  Compensation for I/Q Imbalances and Bias Deviation of the Mach–Zehnder Modulators in Direct-Detected Optical OFDM Systems

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/72008

    Title: Compensation for I/Q Imbalances and Bias Deviation of the Mach–Zehnder Modulators in Direct-Detected Optical OFDM Systems
    Authors: Wei-Ren Peng;Bo Zhang;Xiaoxia Wu;Kai-Ming Feng;Willner, A.E.;Chi, S.
    教師: 馮開明
    Date: 2009
    Publisher: Institute of Electrical and Electronics Engineers
    Relation: IEEE PHOTONICS TECHNOLOGY LETTERS, IEEE, Volume 21, Issue 2, JAN-FEB 2009, Pages 103-105
    Keywords: fiber chromatic
    equalization technique
    in-phase/quadrature-phase imbalances
    Mach-Zehnder modulator
    direct-detected optical OFDM system
    Abstract: We demonstrate an equalization technique to simultaneously compensate for the fiber chromatic dispersion and the distortions induced by the in-phase/quadrature-phase (I/Q) imbalances and bias deviation in the Mach-Zehnder modulators (MZMs). With this technique, the requirement for the monitoring circuits at the transmitter could be relaxed or even eliminated, and thus simplifies the system design and reduces the system cost. The system exhibits a good performance with our proposal over a broad range of imbalances and bias deviation in the MZM. With deliberately introducing I/Q imbalances and bias deviation, we have observed a 2- and 4-dB optical signal-to-noise ratio improvement, for the back-to-back and 800 km of uncompensated standard single-mode fiber transmission, respectively, with our proposed scheme.
    Relation Link: http://www.ieee.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/72008
    Appears in Collections:[電機工程學系] 期刊論文

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