Inventor

JOHNSON RALPH H

US82 patents

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

JOHNSON RALPH H

FINISAR CORP

VCSEL optimized for high speed data

Nitrogen sources for molecular beam epitaxy

Vertical cavity surface emitting laser including indium, antimony and nitrogen in the active region

Long wavelength VCSEL with tunnel junction, and implant

Hybrid mirror VCSELs

Long wavelength VCSEL device processing

Versatile method and system for single mode VCSELs

Distributed bragg reflector for optoelectronic device

Distributed bragg reflector for optoelectronic device

Vertical cavity surface emitting laser including trench and proton implant isolation

Single mode VCSEL

Distributed Bragg Reflector for optoelectronic device

Versatile method and system for single mode VCSELs

Vertical cavity surface emitting laser having multiple top-side contacts

Semiconductor having enhanced carbon doping

Versatile method and system for single mode VCSELs

Mechanical stabilization of lattice mismatched quantum wells

Use of GaAs extended barrier layers between active regions containing nitrogen and AlGaAs confining layers

Hybrid mirror VCSEL

Vertical cavity surface emitting laser including indium and antimony in the active region

Atomic hydrogen as a surfactant in production of highly strained InGaAs, InGaAsN, InGaAsNSb, and/or GaAsNSb quantum wells

VCSEL with integrated electrically modulated intra-cavity graphene absorber

VCSEL mode-transforming phase filter with enhanced performance

Migration enhanced epitaxy fabrication of quantum wells

Assymmetric distributed Bragg reflector for vertical cavity surface emitting lasers

Surface gratings on VCSELs for polarization pinning

Light emitting semiconductor device having an electrical confinement barrier near the active region

Efficient carrier injection in a semiconductor device

HONEYWELL INC

Laser with an improved mode control

Laser with a selectively changed current confining layer

Bandgap isolated light emitter

Emitting with structures located at positions which prevent certain disadvantageous modes and enhance generation of light in advantageous modes

Ribbed and bossed pressure transducer

Pressure transducer with reduced offset signal

VCSEL structure insensitive to mobile hydrogen

VCSEL structure insensitive to mobile hydrogen

Method for micromachining semiconductor material

JOHNSON RALPH H

Vertical cavity surface emitting laser having strain reduced quantum wells

Lasers with InGaAs quantum wells with InGaP barrier layers with reduced decomposition

Surface gratings on VCSELS for polarization pinning

Semiconductor having enhanced carbon doping

DELL PRODUCTS LP

Adaptive modulation scheme of MOSFET driver key parameters for improved voltage regulator efficiency and system reliability

Automatic detection of voltage regulator phase assignment and configuration for multi-output rails

Voltage regulation auto-tuning by detecting actual total capacitance at output terminal

Voltage regulation based on current sensing in MOSFET drain-to-source resistance in on-state RDS(ON)

HONEYWELL INT INC

Mechanical stabilization of lattice mismatched quantum wells

Wavelength selective detector

Metamorphic long wavelength high-speed photodiode

FINLSAR CORP

Electron affinity engineered VCSELs

LUO SHIGUO

Methods and systems for implementing adaptive FET drive voltage optimization for power stages of multi-phase voltage regulator circuits