A general expression of the output SNR of a photodetector is derived for a noise-like laser amplitude-modulated by a stationary Gaussian random modulating signal in the presence of a background light. The electric field Vx(t) of the noise-like laser is assumed to be a stationary narrowband Gaussian random process with zero mean. Two types of modulating signal are considered, the baseband and bandpass modulating signals. More specifically, the effects of the center frequency of the modulating signal, the modulating degree, the bandwidth ration of the noise-like laser to the modulating signal, the effective average quantum rate, and input CNR on output SNR are studied. The detection characteristics of the noise-like laser are also made clear by comparison with the case of a coherent laser.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Output Signal-to-Noise Ratios for Amplitude-Modulated Noise-Like Lasers


    Contributors:

    Published in:

    Publication date :

    1974-03-01


    Size :

    1915240 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Output Signal-to-Noise Ratio for Amplitude and Intensity Modulated Laser

    Oshita, Shinjiro / Morinaga, Norihiko / Namekawa, Toshihiko | IEEE | 1974


    Auralization of Amplitude Modulated Helicopter Flyover Noise

    Krishnamurthy, Siddhartha / Rizzi, Stephen A. | NTRS | 2019


    Auralization of Amplitude Modulated Helicopter Flyover Noise

    Krishnamurthy, Siddhartha / Rizzi, Stephen A. | AIAA | 2019


    Auralization of Amplitude Modulated Helicopter Flyover Noise

    S. Krishnamurthy / S. A. Rizzi | NTIS | 2019