Inventor

CHANG KOK-WAI

US50 patents

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

CHANG KOK-WAI

JDS UNIPHASE CORP

Interleaver/deinterleavers causing little or no dispersion of optical signals

Reflection based nonmoving part optical switch

Tunable micro-optic architecture for combining light beam outputs of dual capillary polarization-maintaining optical fibers

TEMC fiber based optical switch

Optical circulator

Single-pass folded interleaver/deinterleavers

Double-pass folded interleaver/deinterleavers

High power fiber isolator

Thermally expanded multiple core fiber based reflection type optical isolator

Polarization-dependent retroreflection mirror device

Optical coupling system

Bi-directional isolator

Frequency tuning of optical devices

Bi-directional cross-connect

Optical interleavers/deinterleavers

Apparatus capable of operating as interleaver/deinterleavers or filters

Optical circulators

Non-moving parts add/drop device

Beam splitting device

HEWLETT PACKARD CO

Total internal reflection optical switches employing thermal activation

Switching element having an expanding waveguide core

Colliding pulse mode-locked fiber ring laser using a semiconductor saturable absorber

Compact two-by-n optical components based on bierfringent walk-off crystals

Multi-port optical isolator

Multi-port optical circulator utilizing imaging lens and correction optical element

Compact two-by-n optical components based on birefringent walk-off crystals

Optical assembly and method based on TEC fibres

Low-cost compact optical isolators

Microphotonic acousto-optic tunable laser

Microphotonic polarization independent acousto optical tunable filter and receiver

Compact, low crosstalk, three-port optical circulator

Apparatus and method for aligning optical fibers with respect to one another

Mode selective magnetostatic wave resonators

Split optical element and a low cost fabrication approach

Optical assembly and method for high performance coupling

Diagonally coupled magnetostatic wave resonators

Polarization mixer based on walk-off crystals, half-wave plates and TEC fibers

E TEK DYNAMICS INC

Multiple port reflection based circulator

Thermally expanded multiple core fiber

Reflection type optical isolator

Optical isolator using multiple core fibers

JDS UNIPHASE INC

Beam directing device

Isolated polarization beam splitter and combiner

Chromatic dispersion compensation device

Bi-directional circulator

AGILENT TECHNOLOGIES INC

Method of aligning optical fibers to a multi-port optical assembly

E TEK DYNAMICS

Wavelength independent variable optical attenuator

MIELKE MICHAEL M

Systems and methods for controlling a pulsed laser by combining laser signals

ALCATEL LUCENT USA INC

System and method for fabricating an optical isolator

GREENBERG MICHAEL

Compact monolithic dispersion compensator