Inventor

ZAH CHUNG-EN

US56 patents

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

ZAH CHUNG-EN

CORNING INC

Multiwavelength distributed bragg reflector phased array laser

Wavelength-locked external cavity lasers with an integrated modulator

System and method for optically powering a remote network component

Buried ridge semiconductor laser with aluminum-free confinement layer

Passivation of semiconductor laser facets

Semiconductor laser micro-heating element structure

Hole blocking layers in non-polar and semi-polar green light emitting devices

Thermal compensation in semiconductor lasers

Alignment of lasing wavelength with wavelength conversion peak using modulated wavelength control signal

High-power low-loss GRINSCH laser

Bar tester

Semiconductor buried grating fabrication method

Strain balanced laser diode

MQW laser structure comprising plural MQW regions

GaN lasers on ALN substrates and methods of fabrication

System and method for modulating a semiconductor laser

Wavelength control in semiconductor lasers

Method and device for performing DBR laser wavelength modulation free of thermal effect

Native green laser semiconductor devices

Quantum cascade laser design with stepped well active region

Laser source with interdigital heater electrodes and underlying current confinement layer

Method and device for performing wavelength modulation with Distributed Bragg Reflector (DBR) laser

Method of manufacturing an InP based vertical cavity surface emitting laser and device produced therefrom

Quantum well intermixing

Semiconductor array tester

THORLABS QUANTUM ELECTRONICS INC

Waveguide structure for mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages

Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices

Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices

Multiwavelength quantum cascade laser via growth of different active and passive cores

Multiwavelength quantum cascade laser via growth of different active and passive cores

Waveguide structure for mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages

Mid-IR multiwavelength concatenated distributed-feedback laser with an active core made of cascaded stages

Monolithic wide wavelength tunable mid-IR laser sources

Monolithic wide wavelength tunable mid-IR laser sources

BELL COMMUNICATIONS RES

Redundant multi-wavelength laser arrays

Polarization-dependent and polarization-diversified opto-electronic devices using a strained quantum well

High-temperature, uncooled diode laser

Strained algainas quantum-well diode lasers

Geometry dependent doping and electronic devices produced thereby

Angled-facet flared-waveguide traveling-wave laser amplifiers

TELLIUM INC

Integrated multi-wavelength transmitter

Self-aligned transition from ridge to buried heterostructure waveguide, especially for multi-wavelength laser array integration

BHAT RAJARAM

Gallium nitride semiconductor device on SOI and process for making same

MQW laser structure comprising plural MQW regions

TELCORDIA TECH INC

Fiber-optics based micro-photoluminescence system

KUKSENKOV DMITRI VLADISLAVOVICH

Heating elements for multi-wavelength DBR laser

NGUYEN HONG KY

Split control of front and rear DBR grating portions

SIZOV DMITRY

Group III nitride-based green-laser diodes and waveguide structures thereof

FOCUSLIGHT TECH INC

Laser device

CANEAU CATHERINE G

P-type isolation regions adjacent to semiconductor laser facets