#G01C19/727

RESONANT OPTICAL GYROSCOPE USING OPTICAL FREQUENCY COMBS EACH OF WHOSE SPECTRAL COMPONENTS ARE NOT PHASE LOCKED

A technique is provided for reducing angle random walk (ARW) noise in a resonant optical gyroscope (ROG) using a pair of optical frequency combs. The ARW noise is reduced by propagating each optical f…

DRIVE·Apr 9·1 min read

G01C19/727 Honeywell International Inc.

SYSTEMS AND METHODS FOR EFFECTIVE RELATIVE INTENSITY NOISE SUBTRACTION FOR A BROADBAND RESONATOR OPTICAL GYROSCOPE

A method of operating a resonator optical gyroscope includes generating optical signals having broadband frequency range; coupling optical signals into optical resonator (OR) to propagate in first dir…

DRIVE·Apr 3·2 min read

G01C19/727 Honeywell International Inc.

INTERFEROMETRIC RESONATOR OPTICAL GYROSCOPE WITH OPTICAL FREQUENCY COMB

An interferometric resonator optical gyroscope includes an optical frequency comb generator configured to generate an optical frequency comb. Optical signals representative of the optical frequency co…

DRIVE·Mar 20·1 min read

G01C19/727 Honeywell International Inc.

STABILITY ENHANCED RESONATOR FIBER OPTIC GYRO (RFOG)

A method is provided that includes combining a light wave from a master laser with a light wave from a first slave laser to produce a first signal including a first beat note signal, detecting the fir…

DRIVE·Jan 16·2 min read

G01C19/727 Honeywell International Inc.

RESONATOR OPTICAL GYROSCOPES WITH DUAL BROADBAND LIGHT SOURCES

A gyroscope comprises first and second light sources that emit first and second beams with broadband spectrums, and a waveguide arrangement that communicates with the light sources. A resonator commun…

DRIVE·Jan 9·2 min read

G01C19/727 Honeywell International Inc.

PHOTONICS GYROSCOPE WITH BROADBAND LIGHT SOURCE

A photonics gyroscope comprises a light source on a photonics chip that emits a broadband beam; a waveguide resonator; a reflective component; first and second detectors, the second detector coupled t…

DRIVE·Oct 3·2 min read

G01C19/727 Honeywell International Inc.

RESONATOR OPTICAL GYROSCOPE WITH DIMINISHED BIAS ERROR

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 un…

DRIVE·Aug 15·1 min read

G01C19/727 Honeywell International Inc.

RING WAVEGUIDE BASED INTEGRATED PHOTONICS OPTICAL GYROSCOPE WITH BALANCED DETECTION SCHEME

The present disclosure relates to integrated photonics-based optical gyroscopes with silicon nitride (SiN) waveguide-based microresonators. SiN microresonators are fabricated either on a fused silica …

DRIVE·Oct 19·1 min read

G01C19/727 Anello Photonics, Inc.

INTEGRATED PHOTONICS OPTICAL GYROSCOPES OPTIMIZED FOR AUTONOMOUS VEHICLES

Novel small-footprint integrated photonics optical gyroscopes disclosed herein can provide ARW in the range of 0.05°/√Hr or below (e.g. as low as 0.02°/√Hr), which makes them comparable to fiber optic…

DRIVE·Sep 21·1 min read

G01C19/727 Anello Photonics, Inc.

SYSTEM ARCHITECTURE FOR INTEGRATED PHOTONICS OPTICAL GYROSCOPES

The present disclosure relates to system-level integration of lasers, electronics, integrated photonics-based optical components and a rotation sensing element, which can be a fiber coil or a sensing …

DRIVE·Aug 18·1 min read

G01C19/727 Anello Photonics, Inc.

RING WAVEGUIDE BASED INTEGRATED PHOTONICS OPTICAL GYROSCOPE WITH BALANCED DETECTION SCHEME

DRIVE·Jun 16·1 min read

G01C19/727 Anello Photonics, Inc.

SYSTEMS AND METHODS FOR ENHANCED OPTICAL POWER CONTROL

Improvements to optical power regulation in a gyroscopic system are described. The system can include an optical assembly (e.g., optical bench) which couples opposing optical signals to a resonator co…

DRIVE·Apr 28·1 min read

G01C19/727 Honeywell International Inc.

POLARIZATION-MAINTAINING FULLY-RECIPROCAL BI-DIRECTIONAL OPTICAL CARRIER MICROWAVE RESONANCE SYSTEM AND ANGULAR VELOCITY MEASUREMENT METHOD THEREOF

A polarization-maintaining fully-reciprocal bi-directional optical carrier microwave resonance system and an angular velocity measurement method thereof. In the system, highly stable optical carrier m…

DRIVE·Mar 17·2 min read

G01C19/727 ZHEJIANG UNIVERSITY

SYSTEMS AND METHODS TO REDUCE DIFFERENTIAL HARMONICS OF RESONANCE TRACKING MODULATION IN A RESONANT FIBER OPTIC GYROSCOPE

Systems and methods are provided to reduce at least one differential harmonics of a resonance tracking modulation in a resonant fiber optic gyroscope (RFOG). The fundamental frequency of the resonance…

DRIVE·Dec 16·1 min read

G01C19/727 Honeywell International Inc.

RING WAVEGUIDE BASED INTEGRATED PHOTONICS OPTICAL GYROSCOPE WITH GAIN TUNING FOR ENHANCED PERFORMANCE

An integrated photonics optical gyroscope fabricated on a silicon nitride (SiN) waveguide platform comprises a first straight waveguide to receive incoming light and to output outgoing light to be cou…

DRIVE·Nov 4·2 min read

G01C19/727 Anello Photonics, Inc.

STIMULATED BRILLOUIN RING LASER GYROSCOPE WITH OPTICAL FREQUENCY OFFSET OF COUNTERPROPAGATING PUMP LASER SIGNALS

A disk resonator is pumped by counterpropagating pump signals to produce corresponding counterpropagating Brillouin laser signals. The pump laser optical frequencies are separated by a frequency offse…

DRIVE·Sep 9·1 min read

G01C19/727 California Institute of Technology

HIGH-BANDWIDTH PHASE LOCK LOOP CIRCUIT WITH SIDEBAND REJECTION

In one embodiment, a phase lock loop circuit includes a control circuit, wherein the control circuit is configured to input an estimation having a second frequency and a second phase. The second frequ…

DRIVE·Aug 19·2 min read

G01C19/727 Honeywell International Inc.

RING WAVEGUIDE BASED INTEGRATED PHOTONICS OPTICAL GYROSCOPE WITH GAIN TUNING FOR ENHANCED PERFORMANCE

DRIVE·May 27·2 min read

G01C19/727 Anello Photonics, Inc.

INTEGRATED PHOTONICS OPTICAL GYROSCOPES OPTIMIZED FOR AUTONOMOUS TERRESTRIAL AND AERIAL VEHICLES

DRIVE·Apr 22·1 min read

G01C19/727 Anello Photonics, Inc.

Optical frequency comb stimulated brillouin scattering gyroscope

Systems and methods for measuring rotation using an optical frequency comb stimulated Brillouin scattering gyroscope are provided. In certain embodiments, a system comprises a light source that produc…

DRIVE·Jun 11·1 min read

G01C19/727 HONEYWELL INT INC [US]

Laser with transmission and reflection mode feedback control

One embodiment is directed towards a stabilized laser (100) including a laser (312,902,1002) to produce light at a frequency and a resonator (106) coupled to the laser such that the light from the las…

DRIVE·Feb 26·1 min read

G01C19/727 HONEYWELL INT INC [US]

Low noise resonator fiber optic gyro

A low-noise resonator fiber-optic gyroscope is provided. The low-noise resonator fiber-optic gyroscope includes at least one laser to output a reference optical beam, a first-optical-beam frequency co…

DRIVE·Feb 19·1 min read

G01C19/727 HONEYWELL INT INC [US]

System and method for reducing errors in a resonator fiber optic gyroscope

An exemplary resonator fiber optic gyroscope comprises a resonator having an optical fiber loop; a light source configured to generate a light beam; and an intensity modulation circuit coupled between…

DRIVE·May 8·1 min read

G01C19/727 HONEYWELL INT INC [US]

Systems and Methods for Resonator Fiber Optic Gyroscope Intensity Modulation Control

Systems and methods for improved resonator fiber optic gyroscope intensity modulation control are provided. In one embodiment, a resonant fiber optic gyroscope (RFOG) having a residual intensity modul…

DRIVE·Jan 2·1 min read

G01C19/727 HONEYWELL INT INC [US]

High performance hollow-core optical-fiber filter for optical rotation sensing

A hollow-core optical-fiber filter is provided. The hollow-core optical-fiber filter includes a hollow-core optical fiber having a first end-face and an opposing second end-face. The first end-face an…

DRIVE·Dec 5·1 min read

G01C19/727 HONEYWELL INT INC [US]

Improved optical filtering for resonator fiber optic gyroscopes

An optical-fiber filter is provided. The optical-fiber filter includes an optical fiber having a first end-face and an opposing second end-face. The first end-face and the second end-face set a fiber …

DRIVE·Dec 5·1 min read

G01C19/727 HONEYWELL INT INC [US]

Optical resonator gyro

The gyro (50) includes a ring resonator (25) having a hollow core optical fiber coil (24) and optical elements that are selected and/or oriented to reduce stray light that may be present in input ligh…

DRIVE·Sep 5·1 min read

G01C19/727 HONEYWELL INT INC [US]

Resonator fiber optic gyroscopes with reduced rotation rate instability from back reflections

A resonator fiber optic gyroscope (RFOG) is disclosed that reduces rotation rate error instability. In one embodiment, the RFOG comprises a resonator optical ring cavity, a first light source in optic…

DRIVE·Feb 29·2 min read

G01C19/727 HONEYWELL INT INC [US]

System and method for enhancing signal-to-noise ratio of a resonator fiber optic gyroscope

A resonator fiber optic gyroscope includes a sensing resonator having a first resonance frequency for a first laser beam propagation direction and a second resonance frequency for a second laser beam …

DRIVE·Nov 30·1 min read

G01C19/727 HONEYWELL INT INC [US]

Light-phase-noise error reducer

A resonator gyroscope comprises a reference laser generator to produce a reference light; a first slave light source to produce a first slave light locked to the reference light; a second slave light …

DRIVE·Jun 15·1 min read

G01C19/727 HONEYWELL INT INC [US]

System and method for reducing laser phase noise in a resonator fiber optic gyroscope

DRIVE·Jun 15·2 min read

G01C19/727 HONEYWELL INT INC [US]

Resonator fiber optic gyroscope (RFOG) with reduced bias error

Multiple resonator fiber optic gyroscope (RFOG) configurations comprising one or more mode filters inside the resonator are adopted to effectively suppress unwanted high order spatial modes which can …

DRIVE·Jan 26·1 min read

G01C19/727 HONEYWELL INT INC [US]