A Photonic Method for Measuring the AM Noise of Periodic Electrical Signals

    Authors

    D. Mandridis; I. Ozdur; M. Akbulut;P. J. Delfyett

    Comments

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    Abbreviated Journal Title

    IEEE Photonics Technol. Lett.

    Keywords

    Amplitude modulation (AM) noise; demultiplexing; optical communication; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    In this work, we demonstrate mode partition noise in the radio-frequency spectra of periodic signals generated using electrical pattern generators that are often used in digital optical communications and error testing. This effect makes the measurement of the amplitude modulation noise of the repetitive signal through its single sideband (SSB) power spectral density (PSD) at its fundamental frequency inaccurate. This is demonstrated for a square wave, where the dependence of the SSB PSD on the duty cycle of the signal is experimentally shown. To alleviate this ambiguity, we propose and experimentally demonstrate a photonic up-convert and down-convert method that results in invariant SSB power spectra at the signal's fundamental frequency.

    Journal Title

    Ieee Photonics Technology Letters

    Volume

    22

    Issue/Number

    11

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    790

    Last Page

    792

    WOS Identifier

    WOS:000277342800011

    ISSN

    1041-1135

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