Inventor

DUMAIS PATRICK

CA23 patents

⚠️ This page may combine multiple inventors who share the name “DUMAIS PATRICK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DUMAIS PATRICK

HUAWEI TECH CO LTD

Optical waveguide termination having a doped, light-absorbing slab

Automatic endless polarization controller for a silicon-on-insulator platform

Spiral optical waveguide termination

Optical switches with surface grating couplers and edge couplers

Method for crosstalk and power optimization in silicon photonic based switch matrices

Method for crosstalk and power optimization in silicon photonic based switch matrices

Waveguide polarization rotator and method of construction thereof

Apparatus and method for an optical switch having a 2×1 multi-mode interferometer and photodetector

Optical switch with improved switching efficiency

DUMAIS PATRICK

Waveguide crossing

Polarization independent photonic device having multimode component

Liquid crystal on silicon (LCOS) lidar scanner with multiple light sources

Optical attenuator and fabrication method thereof

GOODWILL DOMINIC JOHN

Optical coupling using polarization beam displacer

Optical pulse clipper for lidar

Apparatus and methods for accommodating manufacturing variance in optical photonic integrated circuits

MANSOURI RAD MOHAMMAD MEHDI

Optical scanner with optically switched paths to multiple surface or edge couplers

Optical performance monitor

LITTON SYSTEMS INC

Optimized non-linear effect tapered optical fiber interferometer/switch device

CA MINISTER INDUSTRY

Waveguiding structures with embedded microchannels and method for fabrication thereof

ZHANG CHUNSHU

Coherent LIDAR method and apparatus

ECOLE POLYTECHNIQUE DE MONTREA

Optimized non-linear effect tapered optical fiber and method of making same

HUAWEI TECH CANADA CO LTD

Waveguide crossing having rib waveguides