Sensor data from movable parts is used to predict failure time in laser substrate processing, helping schedule maintenance and reduce downtime.
Sensor-based temperature and vibration monitoring predicts movable-part failure time in laser processing equipment to reduce unexpected downtime.
One fiber laser switches among pulsed and continuous modes to handle coagulation and ablation without laser swaps, reducing procedure time and waste.
Reflected-light sensing checks lens deterioration during piercing and cutting, helping maintain focus and cutting quality without stopping production.
Independent aperture control mimics pupil behavior to measure near-eye display light more accurately while reducing noise and improving image clarity.
Multiple optical sidebands boost Rayleigh backscatter sensing to improve SNR, reduce fading, and localize acoustic anomalies more accurately.
Angular-spatial focal-plane mapping helps GRIN lenses separate input angles despite fabrication limits in refractive index variation and resolution.
Automated expert-mode sequences test optical transceivers, isolate settings behind acceptable BER, and reduce manual troubleshooting time.
A distance extension module uses parallel light to simulate a point source, simplifying accurate testing of close-range macro lens assemblies.
An inspection waveguide half the arm length uses bidirectional test light to reproduce modulator errors while reducing optical-circuit chip area.
A segmented display panel uses dams, crack sensing, and planarization around openings for integrated cameras or sensors.
A reference pattern enables vision inspection to measure optical functional layer alignment against the polarization layer.
Optical time domain reflectometer detects line failures using a comparator circuit to compare return light intensity against a threshold voltage.
Intensity-modulated signals with controlled phase differences enable precise characterization of optical device performance while managing system complexity.
A lens test system uses speaker-driven vibration and microphone capture to analyze audio signals for precise loosening identification.
Scrambling polarization states during a single wavelength sweep eliminates multiple scans, reducing testing time and improving measurement accuracy.
Modulating pump light phase distinguishes under-coupled and over-coupled regimes, recovering lost sign information for accurate intrinsic loss estimation.
A method determines reference turns for optical fiber wrapping to calculate bending loss from light power measurements.
Multiple sensors record data simultaneously to reduce gonioradiometer measurement time.
Dual reference sensors on a movable holder determine precise alignment, preventing collisions with strongly curved objects during high-resolution scanning.
Adjustable fiber bending apparatus controls multimode launch conditions by varying the bend radius to standardize optical signal distribution.
Cloud lidar photodetectors monitor window cleanliness and alignment by comparing internal reflection signals to expected values, eliminating extra sensors.
An optical vector network analyzer uses a reference delay array to estimate distance-variant phase distortion in probe light during frequency sweeps.
Multi-peak reference grating replaces Fabry-Perot etalons to eliminate long-term drift in Bragg wavelength determination.
A method isolates sideband signals from zero-order components to evaluate individual Mach-Zehnder interferometer characteristics.
Binary signal sequence with input and output polarization controllers enables instantaneous differential group delay detection across the entire optical link.
A hollow reel uses vacuum pressure to secure a flexible screen during coiling operations.
A single-wavelength dispersion modal delay measurement predicts effective modal bandwidth across wide wavelength ranges for multimode optical fibers.