Ultrawide-band photonic time-stretch A/D converter employing phase diversity

    Authors

    Y. Han; O. Boyraz;B. Jalali

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    IEEE Trans. Microw. Theory Tech.

    Keywords

    fiber optics; microwave photonics; optical signal processing; photonic; analog-to-digital (A/D) conversion; time stretch; TO-DIGITAL CONVERSION; SIGNALS; Engineering, Electrical & Electronic

    Abstract

    The performance of analog-to-digital converters can be greatly enhanced by preprocessing the analog signal using the photonic time-stretch technique. The analog bandwidth of a time-stretch preprocessor is limited by dispersion-induced frequency fading. In this paper, we propose and demonstrate a new implementation of the time-stretch analog-to-digital (A/D) conversion system that overcomes the bandwidth limitation. It is shown that the fading phenomenon can be mitigated by using phase diversity, and the maximum ratio combining algorithm is identified as a potential technique for maximizing the signal-to-noise-ratio.

    Journal Title

    Ieee Transactions on Microwave Theory and Techniques

    Volume

    53

    Issue/Number

    4

    Publication Date

    1-1-2005

    Document Type

    Article

    Language

    English

    First Page

    1404

    Last Page

    1408

    WOS Identifier

    WOS:000228365600036

    ISSN

    0018-9480

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