About 21 results
https://drivepatents.com/patents/978206 · 19 Feb 2014
One embodiment is directed to a resonator fiber optic gyroscope (RFOG). The optical fiber resonator includes an optical fiber, one or more optical filters that suppresses the noise light in the resonator, one or more variable optical attenuators (VOAs) tha...
https://drivepatents.com/patents/979607 · 15 Jan 2014
An optical-fiber filter system to narrow a linewidth and to reduce noise fluctuations of an optical beam is provided. The optical-fiber filter system includes an optical fiber having a first end-face and an opposing second end-face, the first end-face and ...
https://drivepatents.com/patents/985370 · 27 Mar 2013
Systems and methods for a hollow core resonant filter are provided. In one embodiment, a hollow-core fiber resonant cavity (100) comprises: a hollow-core fiber (110) having a first and second ends (120,122); a first and a second pigtail fiber (130,132) eac...
https://drivepatents.com/patents/995842 · 28 Nov 2012
An optical sensor comprising: at least one optical coupler (94) an optical waveguide (92) comprising a plurality of loops, the optical waveguide in optical communication with the at least one optical coupler and mechanically decoupled from the at least one...
https://drivepatents.com/patents/998361 · 12 Sep 2012
A clamp-point active circuit is provided. The clamp-point active circuit includes a rate amplifier configured to receive an output from a device transitioning between at least two levels. The clamp-point active circuit has at least one switching device con...
https://drivepatents.com/patents/1001429 · 13 Jun 2012
Systems and methods for driving an optical modulator are provided. In one embodiment, a modulation drive circuit comprises: a balanced impedance network having a first and a second output generated from a first input, and a third and a fourth output genera...
https://drivepatents.com/patents/1002345 · 16 May 2012
Systems and methods for fiber-optic gyroscopes are provided. In one embodiment, a fiber-optic gyroscope comprises: a light source current servo coupled to a light source that transmits light through an optic path, wherein the light source current servo con...
https://drivepatents.com/patents/1007132 · 14 Dec 2011
One embodiment is directed to a power supply for a fiber optic gyroscope that comprises at least one main power supply, at least one demodulator local power supply to operatively couple the main power supply to a demodulator included in the fiber optic gyr...
https://drivepatents.com/patents/1007518 · 30 Nov 2011
A broadband light source (10) configured to emit a stable broadband optical beam is provided. The broadband light source includes at least one optical pump source (100), an optical system (15) including a polarization beam combiner (120), and a solid state...
https://drivepatents.com/patents/1083023 · 20 Oct 2004
A light source (10) is connected through a single mode optical fiber (51) and a coupler (52) to one end of a polarization maintaining optical fiber (54), the other end of which is connected to a polarizing optical waveguide (15) of an optical integrated ci...