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

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

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: Nov 10, 2010
• Journal: Optics Express
• Electronic ISSN: 1094-4087
• 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.
• Public URL: https://durham-repository.worktribe.com/output/1582263