XPM Effect in Coherent FDM Systems Using FSK and Heterodyne Detection Scheme

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概要

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• Cross-phase modulation (XPM) induced by residual intensity modulation in coherent optical frequency-shift-keying (FSK) frequency division multiplexing (FDM) transmission systems that use dispersion-shifted fibers is evaluated theoretically and experimentally in terms of spectral profile deformation. The bit-error rate is measured in a 2. 5-Gbit/s 4-channel 40-km dispersion-shifted fiber transmission experiment, and we confirm experimentally and theoretically that the power penalty in the presence of residual intensity modulation of over 4 mWp-p exceeds 1 dB. Experimental results show that the penalty due to XPM is large even when the power of the newly generated lights caused by four-wave mixing is 20-dB less than that of signals. This confirms that residual intensity modulation must be reduced in continuous-phase (CP)-FSK-FDM systems even though they are designed to avoid generating four-wave mixing.

• 一般社団法人電子情報通信学会の論文
• 1995-05-25

著者

• Uchida Yusuke

  Central Research Laboratory Hitachi Ltd.

• Kuboki Katsuhiko

  Central Research Laboratory, Hitachi, Ltd.

• Kuboki Katsuhiko

  Central Research Laboratory Hitachi Ltd.

関連論文

• XPM Effect in Coherent FDM Systems Using FSK and Heterodyne Detection Scheme

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