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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 7 — Apr. 5, 2004
  • pp: 1470–1475

Fast, large and controllable phase modulation using dual frequency liquid crystals

Andrew K. Kirby and Gordon D. Love  »View Author Affiliations

Optics Express, Vol. 12, Issue 7, pp. 1470-1475 (2004)

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We report on a method for high speed, large stroke phase modulation using dual frequency control of liquid crystals. Our system uses an all-electronic feedback system in order to simplify the control. We show half wave phase modulations of ~120Hz with the operating point varying over nearly the full dynamic range of the device, and demonstrate larger phase shifts (2.5 waves) at a frequency of 37Hz. For large phase shifts, the speeds are an order of magnitude faster than existing techniques.

© 2004 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Research Papers

Original Manuscript: February 3, 2004
Revised Manuscript: March 29, 2004
Published: April 5, 2004

Andrew Kirby and Gordon Love, "Fast, large and controllable phase modulation using dual frequency liquid crystals," Opt. Express 12, 1470-1475 (2004)

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