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The impact of laser phase noise on the coherent subcarrier multiplexing system

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3 Author(s)
Yang-Han Lee ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Jingshown Wu ; Hen-Wai Tsao

In coherent optical subcarrier multiplexing (CSCM) systems, the laser phase noise may cause signal spectrum broadening and hence, causes significant deterioration in the system performance. The impact of phase noise on the CSCM system is analyzed in terms of carrier-to-noise ratio, intermodulation distortion, and adjacent channel crosstalk. The optimal modulation index and carrier to noise ratio are also presented. Some numerical results are outlined

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Lightwave Technology, Journal of  (Volume:9 ,  Issue: 3 )