Now showing items 1-5 of 5

  • All-optical CDMA with bipolar codes 

    Nguyen, Lim; Aazhang, Behnaam; Young, James F. (1995-03-20)
    A method for the transmission and detection of bipolar sequences in a unipolar system is presented. It allows all-optical implementation, in noncoherent optical CDMA systems, of the bipolar codes that have been developed ...
  • BER of optical communication system using fiber source 

    Nguyen, Lim; Aazhang, Behnaam; Young, James F. (1995-11-20)
    We analyze the bit-error rate (BER) of an optical communication system using the superfluorescent fiber source (SFS). The counting statistics of thermal light give improved performance relative to the Gaussian statistics ...
  • Demonstration of all-optical CDMA with bipolar codes 

    Dennis, Tasshi; Aazhang, Behnaam; Young, James F. (1996-10-20)
    Using a fiber-based testbed, we experimentally verify that the advantageous correlation properties of bipolar spread-spectrum codes can be preserved in an optical channel using direct detection and all-optical encoder/decoders. ...
  • Experimental demonstration of bipolar codes for direct detection multi-user optical communication 

    Dennis, Tasshi; Nguyen, Lim; Aazhang, Behnaam; Young, James F. (1996-10-20)
    We report the first experimental demonstration of a broadband spectral encoding and decoding technique using bipolar codes for optical code-division multiple access. The codeword correlations are verified and rejection of ...
  • Wavelength encoding to reduce four-wave mixing crosstalk in multi-wavelength channels 

    Guo, Yuanbin; Aazhang, Behnaam; Young, James F. (1996-10-20)
    The trend toward higher bit rates in lightwave communications has increased interest in dispersion-shifted fiber (DSF) to minimize dispersion penalties. In addition, wavelength-division multiplexing (WDM) is being used to ...