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

Kirby, A.K.; Love, G.D.

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Authors

G.D. Love



Abstract

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.

Citation

Kirby, A., & Love, G. (2004). Fast, large and controllable phase modulation using dual frequency liquid crystals. Optics Express, 12(7), 1470-1475. https://doi.org/10.1364/opex.12.001470

Journal Article Type Article
Publication Date 2004-04
Deposit Date Feb 28, 2008
Publicly Available Date Mar 29, 2024
Journal Optics Express
Publisher Optica
Peer Reviewed Peer Reviewed
Volume 12
Issue 7
Pages 1470-1475
DOI https://doi.org/10.1364/opex.12.001470
Keywords Optical devices, Liquid-crystal devices.

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