Optical Code-Division-Multiplexed Systems Based on Spectral Encoding of Noncoherent Sources

M. Kavehrad, D. Zaccarin

    Research output: Contribution to journalArticlepeer-review

    353 Scopus citations


    In this paper, we present a new category of optical CDMA systems which work based on spectral encoding. In such systems, that we will refer to as Frequency-Encoded CDMA (FE-CDMA) systems, the coding is done in the frequency domain while in the usual CDMA systems the code multiplies the modulation signal in the time domain. We present a new type of FE-CDMA system, based on encoding noncoherent broadband sources. We discuss the advantages of our system compared to other optical CDMA systems and present its performance. We show that very efficient, low-cost, CDMA systems can be obtained with an aggregate throughput of many gigabits per second. Also, for this system, the spreading gain of CDMA is independent of the modulation bandwidth. Hence, the system can accommodate variable bit rates, naturally.

    Original languageEnglish (US)
    Pages (from-to)534-545
    Number of pages12
    JournalJournal of Lightwave Technology
    Issue number3
    StatePublished - Mar 1995

    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics


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