Liquid crystal waveguide for dynamically controlling polarized light
US8989523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Mar 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Waveguide and associated methods for controlling an optical phase delay (OPD) of TE polarized light traveling along a propagation direction through a waveguide are disclosed. In one example, the method includes providing the waveguide with a core, at least one cladding; initially aligning at least a portion of the liquid crystal molecules in an initial orientation with their longitudinal axes oriented at an out-of-plane tilt angle, and their longitudinal axis oriented at an in-plane angle; providing the waveguide with a pair of electrodes for receiving a control signal; and applying the control signal to the pair of electrodes to rotate the liquid crystal molecules from the initial orientation, thereby controlling the optical phase delay of the TE polarized light traveling through the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.