Oblique-incidence zero loop-area Sagnac interferometer detects magneto-optic Kerr effect using orthogonal polarized components.
Vertically separated spiraling coils in a multilayer waveguide optical gyroscope eliminate channel crossovers and polarization errors for higher accuracy.
A fiber-optic ring resonator in transmission mode enables counter-propagating light waves to circulate within a Sagnac interferometer structure.
Electro-optically tunable devices modulate phase differences between polarization components in fiber optic resonators to stabilize optical interference.
A ring laser gyroscope block shifts mirror corners laterally to maintain incidence spot positions during temperature changes.
Digital simulator models fiber optic gyroscope light intensity and control loops to predict performance under mechanical vibration.
Integrating beam splitters and modulators onto one chip reduces manufacturing costs while maintaining scale factor stability across varying temperatures.
A hybrid gyroscope merges vibratory and Sagnac outputs via a microcontroller to correct measurement errors.
A digital feedback system increments a ramp signal based on rotation rate and resets it at fixed intervals to maintain variable amplitude.
Separates bias modulation and photodetector sampling clocks using distinct generators for tunability and high-speed operation.
Replacing gas with solid-state volume Bragg gratings eliminates leakage and extends device lifetime.
A bias-modulation waveform for interferometric fiber optic gyroscopes produces benign glitch patterns with zero amplitude at predefined sense harmonics.
Giant dispersion from resonant elements eliminates gain competition and injection locking in laser gyros.
An all-fiber polarization device uses a rigid optomechanical link and angular adjustment to reduce signal loss and improve alignment reliability.
A Sagnac optomechanical gyroscope detects rotation via mechanical angular frequency shifts in a circulating optical resonator.
A non-interferometric optical gyroscope detects rotation by measuring polarization changes in counter-propagating beams within a closed loop.
A fiber-optic gyroscope assembly uses a capped concentric magnetic shield to create a toroidal cavity for the counter-wound optical fiber coil.
A phase lock loop converts low-frequency synthesizer signals to high-frequency outputs, enabling synchronous modulation and reducing angle random walk noise.
Segmented multilayer optical circuit reduces interferometric gyroscope weight while maintaining phase modulation performance.
Segmented dual-sensor paths on an atom chip cancel systematic errors through differential phase processing, improving gyrometer sensitivity.
Frequency switching controllers alternate modulation offset signs to suppress optical backscatter errors while maintaining measurement precision.
Reflective-coated optical-fiber filters reduce phase noise in resonator fiber optic gyroscopes, enabling low-cost semiconductor lasers.
Angled waveguide interfaces exceeding Brewster's angle eliminate coherent back reflection that corrupts electro-optic modulation in fiber optic gyroscopes.
Hybrid 2x2 and 3x3 waveguide couplers resolve the trade-off between manufacturing ease and measurement precision by eliminating complex phase modulators.
A resonator fiber-optic gyroscope uses optical heterodyning to mix signals with a reference laser for precise rotation rate measurement.