Electro-optical tunable birefringent filter
Abstract
An electrically tunable Lyot type filter is a Lyot that include one or more filter elements. Each filter element may have a planar, solid crystal comprised of a material that exhibits birefringence and is electro-optically active. Transparent electrodes may be coated on each face of the crystal. An input linear light polarizer may be located on one side of the crystal and oriented at 45 degrees to the optical axis of the birefringent crystal. An output linear light polarizer may be located on the other side of the crystal and oriented at -45 degrees with respect to the optical axis of the birefringent crystal. When an electric voltage is applied between the electrodes, the retardation of the crystal changes and so does the spectral transmission of the optical filter.
- Inventors:
- Issue Date:
- Research Org.:
- Nova Photonics, Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1034607
- Patent Number(s):
- 8107152
- Application Number:
- 12/201,614
- Assignee:
- Nova Photonics (Princeton, NJ)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- FG02-99ER54520
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2008 Aug 29
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Levinton, Fred M. Electro-optical tunable birefringent filter. United States: N. p., 2012.
Web.
Levinton, Fred M. Electro-optical tunable birefringent filter. United States.
Levinton, Fred M. Tue .
"Electro-optical tunable birefringent filter". United States. https://www.osti.gov/servlets/purl/1034607.
@article{osti_1034607,
title = {Electro-optical tunable birefringent filter},
author = {Levinton, Fred M.},
abstractNote = {An electrically tunable Lyot type filter is a Lyot that include one or more filter elements. Each filter element may have a planar, solid crystal comprised of a material that exhibits birefringence and is electro-optically active. Transparent electrodes may be coated on each face of the crystal. An input linear light polarizer may be located on one side of the crystal and oriented at 45 degrees to the optical axis of the birefringent crystal. An output linear light polarizer may be located on the other side of the crystal and oriented at -45 degrees with respect to the optical axis of the birefringent crystal. When an electric voltage is applied between the electrodes, the retardation of the crystal changes and so does the spectral transmission of the optical filter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 31 00:00:00 EST 2012},
month = {Tue Jan 31 00:00:00 EST 2012}
}