About 21 results
https://drivepatents.com/patents/1386329 · 8 Apr 2026
Systems and methods for compensating optical lead fluctuations in an RFOG include sources for generating first and second optical signals; an optical resonator; first and second lead lines connected to the sources and the resonator, wherein the sources cou...
https://drivepatents.com/patents/1388073 · 25 Mar 2026
A gyroscope comprises a source emitting a broadband beam, and a first waveguide arrangement that splits the beam into CCW and CW beams. First and second phase modulators are coupled to the waveguide arrangement and provide phase modulations or frequency sh...
https://drivepatents.com/patents/1390932 · 31 Dec 2025
Techniques are provided for diminishing bias error, in a resonator optical gyroscope, due to an undesired, parasitic optical mode which is orthogonal to a desired optical mode. Energy levels of the undesired, parasitic mode can be diminished utilizing pola...
https://drivepatents.com/patents/1388408 · 8 Oct 2025
A method for a resonant fiber optic gyroscope is provided. The method includes locking a frequency of a light wave from a master laser to a resonant frequency of a fiber optic resonator; phase locking a first slave laser to the frequency of the master lase...
https://drivepatents.com/patents/966074 · 17 Dec 2014
Systems and methods for sideband heterodyning detection are provided. In certain embodiments a system includes an optical resonator (154) configured to allow light to resonate therein; at least one light source (102) that is controlled to form multiple opt...
https://drivepatents.com/patents/970037 · 17 Sep 2014
The sensor has a fiberoptic Sagnac interferometer (1) comprising a photodetector device (5), and an evaluation circuit (9) comprising a multifunctional integrated optical chip (MIOC) (11) with MIOC transfer function. The chip is arranged upstream of a digi...
https://drivepatents.com/patents/970818 · 27 Aug 2014
A resonator fiber optic gyroscope (RFOG) is provided. The RFOG includes a gyroscope resonator having a clockwise input port and a counter-clockwise input port; a first laser configured to couple a clockwise optical beam into to the clockwise input port; a ...
https://drivepatents.com/patents/973513 · 18 Jun 2014
A rare-earth-doped-fiber light source with wavelength stability includes a rare-earth doped fiber and an undoped fiber placed in proximity to each other and having the same host material and the same cross-sectional structure, a coupler configured to direc...
https://drivepatents.com/patents/976906 · 26 Mar 2014
A coaxial gyro accelerometer device in a semiconductor substrate for simultaneously sensing coaxial linear and rotational forces. An exemplary device includes a resonating cantilever beam within a substrate and a package having a resonating cavity. The pac...
https://drivepatents.com/patents/977223 · 19 Mar 2014
A stabilized pump laser source (300, 500) includes a semiconductor laser source (310, 520) that generates a coherent output signal and a light stabilizer. The light stabilizer comprises an optical fiber configured to pass at least one polarization componen...