Impact of laser polarization and angle of incidence on phase shifting efficacy of an all-optically addressed liquid crystal delay line at X band

  • Jinfeng Li*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

This article conducts an experimental investigation into the impact of laser polarization and angle of incidence on the efficiency of a liquid crystal enabled 0-180° phase shifting delay line operating at the X band. According to measurement results, the polarization of the laser beam with regard to the rubbing direction and the liquid crystal filling direction has a significant impact on the tuning efficacy of the delay line. The possible phase shift is increased when the laser beam is polarized parallel to both the liquid crystal filling direction and the rubbing direction. Furthermore, the effectiveness of the delay line's phase shifting is non-linearly influenced by the angle of incidence, as evidenced by another two experiments that were carried out with the laser source rotated at the same and diverse planes relative to the fixed rubbing alignment direction, respectively.

Original languageEnglish
Title of host publicationOptoelectronic Devices and Integration XII
EditorsXuping Zhang, Baojun Li, Changyuan Yu, Xinliang Zhang
PublisherSPIE
ISBN (Electronic)9781510667778
DOIs
Publication statusPublished - 2023
Externally publishedYes
EventOptoelectronic Devices and Integration XII 2023 - Beijing, China
Duration: 14 Oct 202316 Oct 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12764
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptoelectronic Devices and Integration XII 2023
Country/TerritoryChina
CityBeijing
Period14/10/2316/10/23

Keywords

  • All-optical Delay Line
  • All-optical Phase Shifter
  • Azobenzene Liquid Crystal
  • Delay Line
  • Laser Polarization
  • Liquid Crystal
  • Microwave Photonics
  • Reconfigurable

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