Directly modulated semiconductor-laser-fed photonic delay line with ferroelectric liquid crystals

    Authors

    N. Madamopoulos;N. A. Riza

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    PHASED-ARRAY ANTENNAS; TIME DELAYS; SYSTEM; DESIGN; FEED; Optics

    Abstract

    A 3-bit binary photonic delay line is demonstrated at 1 GHz by use of a directly modulated semiconductor laser and remote interconnection fiber optics. Three types of free-space delay-bit geometries are tested far 5.69-ns, 1.67-ns, and 8.8-ps designed delay bits. This is the first time, to our knowledge, that a photonic delay line is demonstrated with ferroelectric liquid-crystal optical ON-OFF devices for optical path switching and active polarization noise filtering. Three-dimensional imaging optics and antireflection-coated optics (for all but five components) are used successfully to minimize photonic delay-line insertion losses and interchannel cross talk. The 3-bit system is fully characterized for measured and designed performance. (C) 1998 Optical Society of America.

    Journal Title

    Applied Optics

    Volume

    37

    Issue/Number

    8

    Publication Date

    1-1-1998

    Document Type

    Article

    Language

    English

    First Page

    1407

    Last Page

    1416

    WOS Identifier

    WOS:000072337900016

    ISSN

    0003-6935

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