Reduction of Optical Beat Interference in SCM/WDMA Networks Using Pseudorandom Phase Modulation

Mohammad M. Banat, Mohsen Kavehrad

    Research output: Contribution to journalArticle

    28 Scopus citations


    A new approach is suggested to reduce the optical beat interference (OBI) in subcarrier multiplexed (SCM) wavelength-division multiple access (WDMA) networks. The idea is to deliberately introduce independent random polarization fluctuations in the electric fields transmitted on each optical channel. Random polarization results in an expanded OBI spectrum, and hence, less OBI power at the reference user receiving filter output. Electro-optic phase modulation is used to introduce polarization randomness in the fields before they are coupled into the fibers. A two-user system was simulated. Simulation results show the drastic reduction in OBI power spectral density using appropriate PN signals. 0733-8724/94#04.00

    Original languageEnglish (US)
    Pages (from-to)1863-1868
    Number of pages6
    JournalJournal of Lightwave Technology
    Issue number10
    StatePublished - Oct 1994


    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics

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