• DocumentCode
    2155130
  • Title

    Liquid Crystal Phase Shifter for Optically Generated RF-Signals

  • Author

    Vogel, Wolfgang ; Berroth, Manfred

  • Author_Institution
    Institute for Electrical and Optical Communication Engineering, University of Stuttgart, w.vogel@int.uni-stuttgart.de
  • fYear
    2000
  • fDate
    Oct. 2000
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    In this paper we present a phase shifter for optically generated RF-signals including a liquid crystal amplitude modulator. The light is intensity modulated by a Mach-Zehnder modulator and split into two paths. One path exhibits a fixed ¿RF/4 delay and a liquid crystal light valve to vary the transmitted amplitude of this path. In the proposed experimental setup the resulting phase ¿RF of the modulated signal can be adjusted from 0° to 45°. The method can be used for a continuous phase shift up to 360° with only four light valves.
  • Keywords
    Amplitude modulation; Liquid crystals; Optical arrays; Optical modulation; Optical network units; Phase modulation; Phase shifters; Phased arrays; Radio frequency; Valves;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 2000. 30th European
  • Conference_Location
    Paris, France
  • Type

    conf

  • DOI
    10.1109/EUMA.2000.338765
  • Filename
    4139778
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2155130