We present a technique for up and down-conversion of microwave (MW) subcarriers of digital signals based on the insertion of a passive all-optical device (unbalanced Mach-Zehnder interferometer) in a frequency modulated (FM) fiber-optic link. This technique has been successfully tested previously with CW signals. Here, simulations of digital transmission, spectral and BER measurements are presented. The technique uses a very low cost passive optical device that is also able to work with WDM and full duplex systems (1.3-1.5 /spl mu/m). The frequency range of operation is only limited by the direct modulation of the laser diode. BER measurements for BPSK format show low distortions caused by the system.


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    Title :

    Conversions of the microwave subcarriers of digital signals in optical links


    Contributors:
    Le Guennec, Y. (author) / Cabon, B. (author) / Maury, G. (author)


    Publication date :

    2001-01-01


    Size :

    195681 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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