Inventor

CHO ALFRED YI

US46 patents

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

CHO ALFRED YI

LUCENT TECHNOLOGIES INC

Quantum cascade laser with relaxation-stabilized injection

Distributed feedback surface plasmon laser

Mounting technology for intersubband light emitters

Quantum cascade laser

Nonlinear semiconductor light sources

Solid state laser for operation in librational modes

Apparatus comprising a quantum cascade laser having improved distributed feedback for single-mode operation

Self-mode-locking quantum cascade laser

Intersubband light source with separate electron injector and reflector/extractor

Long wavelength semiconductor lasers incorporating waveguides based on surface plasmons

Bi-directional unipolar semiconductor light source

Multiple wavelength quantum cascade light source

Quantum cascade laser

Quantum cascade light emitter with pre-biased internal electronic potential

Quantum cascade laser

Article comprising an electric field-tunable semiconductor laser

Article comprising an improved QC laser

Article comprising a unipolar superlattice laser

Article comprising an improved quantum cascade laser

Mesa geometry semiconductor light emitter having chalcogenide dielectric coating

Method of making black phosphorus from red phosphorus

Optical devices with heavily doped multiple quantum wells

Optical amplifier for quantum cascade laser

Heterostructure laser

Article comprising a dual-wavelength quantum cascade photon source

Article comprising an improved superlattice quantum cascade laser

Article comprising a strain-compensated QC laser

Process for selective area growth of III-V semiconductors

GaAs-based MOSFET, and method of making same

Phase matched parametric light generation in monolithically integrated intersubband optical devices

Technique for measuring intersubband electroluminescence in a quantum cascade laser

Unipolar, intraband optoelectronic transducers with micro-cavity resonators

Broadband cascade light emitters

Engineering the gain/loss profile of intersubband optical devices having heterogeneous cascades

Flat minibands with spatially symmetric wavefunctions in intersubband superlattice light emitters

Intersubband light emitters with injection/relaxation regions doped to different levels

BELL TELEPHONE LABOR INC

Fabrication of mesa devices by MBE growth over channeled substrates

Selective lift-off technique for fabricating gaas fets

MBE growth: gettering contaminants and fabricating heterostructure junction lasers

Native oxide technique for preparing clean substrate surfaces

Sn-Doped group III(a)-v(a) Ga-containing layers grown by molecular beam epitaxy

Simultaneous molecular beam deposition of monocrystalline and polycrystalline iii(a)-v(a) compounds to produce semiconductor devices

AGERE SYST GUARDIAN CORP

Selective growth process for group III-nitride-based semiconductors

Method of making an article comprising an oxide layer on a GaAs-based semiconductor body

AGERE SYST OPTOELECTRONICS

Multi-quantum well lasers with selectively doped barriers

UNIV YALE

Semiconductor laser for operation in librational modes