ClassID:

216136

H01S5/3407 - CPC Classification

Classification description:

Semiconductor lasers; Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well lasers [SQW-lasers], multiple quantum well lasers [MQW-lasers] or graded index separate confinement heterostructure lasers [GRINSCH-lasers] characterised by special barrier layers

Recent Application in this class:
#1
20260155628
2026-06-04

SEMICONDUCTOR LASER MODULES

#2
20260128571
2026-05-07

MULTIPLE QUANTUM WELL STRUCTURE, SEMICONDUCTOR LASER AND MANUFACTURING METHOD FOR MULTIPLE QUANTUM WELL STRUCTURE

#3
20250372955
2025-12-04

SEMICONDUCTOR LASER COMPONENTS

#4
20250350096
2025-11-13

DEVICES INCLUDING IIIxOz , AlyOz SUPERLATTICES

#5
20250309617
2025-10-02

SURFACE EMITTING SEMICONDUCTOR LASER AND OPTICAL TRANSMISSION APPARATUS

#6
20250246870
2025-07-31

Stable UV Laser

#7
20250141191
2025-05-01

SEMICONDUCTOR GREEN LASERS

#8
20240405515
2024-12-05

VERTICAL CAVITY LIGHT-EMITTING ELEMENT

#9
20240380186
2024-11-14

SEMICONDUCTOR LASER ELEMENT

#10
20240332910
2024-10-03

HIGH-EFFICIENCY ACTIVE LAYER AND SEMICONDUCTOR LIGHT-EMITTING DEVICE AND PREPARATION METHOD

#11
20240243549
2024-07-18

DISTRIBUTED REFLECTOR LASER DIODE AND METHOD FOR MANUFACTURING THE SAME

#12
20240006859
2024-01-04

OPTICAL MODULATION AND AMPLIFICATION APPARATUS, OPTICAL MODULE, OPTICAL NETWORK UNIT, AND OPTICAL COMMUNICATION SYSTEM

#13
20230402821
2023-12-14

NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT

#14
20230307891
2023-09-28

Semiconductor layer structure with a thin blocking layer

#15
20230261443
2023-08-17

DILUTE NITRIDE LONG-WAVELENGTH EMITTER WITH IMPROVED PERFORMANCE OVER TEMPERATURE

#16
20230111268
2023-04-13

LASER ELEMENT

#17
20230006425
2023-01-05

SEMICONDUCTOR OPTICAL DEVICE

#18
20220393438
2022-12-08

OPTOELECTRONIC SEMICONDUCTOR COMPONENT, ARRANGEMENT OF OPTOELECTRONIC SEMICONDUCTOR COMPONENTS, OPTOELECTRONIC DEVICE AND METHOD FOR PRODUCING AN OPTOELECTRONIC SEMICONDUCTOR COMPONENT

#19
20220209487
2022-06-30

Stable UV laser

#20
20220190560
2022-06-16

GAIN MEDIUM STRUCTURE FOR SEMICONDUCTOR OPTICAL AMPLIFIER WITH HIGH SATURATION POWER

#21
20220123170
2022-04-21

Light emitting structures with multiple uniformly populated active layers

#22
20220123169
2022-04-21

Multi-color light emitting structures with controllable emission color

#23
20220102942
2022-03-31

SiGeSn laser diodes and method of fabricating same

#24
20220085574
2022-03-17

Optical semiconductor device

#25
20210408766
2021-12-30

Semiconductor layer structure with a thin blocking layer

#26
20210376573
2021-12-02

LOW VOLTAGE LASER DIODES ON {20-21} GALLIUM AND NITROGEN CONTAINING SURFACES

#27
20210194216
2021-06-24

STACKED SEMICONDUCTOR LASERS WITH CONTROLLED SPECTRAL EMISSION

#28
20210091540
2021-03-25

Quantum cascade laser and method for manufacturing same

#29
20200412101
2020-12-31

Semiconductor light emitting element

#30
20200395737
2020-12-17

Semiconductor laser diode

#31
20200274332
2020-08-27

Semiconductor device and manufacturing method

#32
20200220330
2020-07-09

Laser diode

#33
20200091684
2020-03-19

Low voltage laser diodes on {20-21} gallium and nitrogen containing surfaces

#34
20200044417
2020-02-06

Semiconductor optical device and optical transceiver module

#35
20190372310
2019-12-05

Laser diode with defect blocking layer

#36
20190356114
2019-11-21

Superlattice heterostructures formed with single crystalline semiconductor nanomembranes and amorphous tunneling barrier layers

#37
20190273363
2019-09-05

Quantum cascade laser element

#38
20190267511
2019-08-29

Semiconductor layer sequence having pre- and post-barrier layers and quantum wells

#39
20190237938
2019-08-01

Method of manufacturing semiconductor laser device

#40
20190237617
2019-08-01

Optoelectronic component

#41
20190214788
2019-07-11

Surface-emitting laser device and light emitting device including the same

#42
20190148916
2019-05-16

Semiconductor laser device, semiconductor laser module, and laser light source system for welding

#43
20190123513
2019-04-25

Transistor laser electrical and optical bistable switching

#44
20190103728
2019-04-04

Low voltage laser diodes on {20-21} gallium and nitrogen containing substrates

#45
20190067912
2019-02-28

Semiconductor laser diode with low threshold current

#46
20190067900
2019-02-28

III-Nitride nanowire array monolithic photonic integrated circuit on (001)silicon operating at near-infrared wavelengths

#47
20190027900
2019-01-24

Optical semiconductor device

#48
20180323340
2018-11-08

White light emitting structures with controllable emission color temperature

#49
20180261981
2018-09-13

Semiconductor laser

#50
20180226771
2018-08-09

Vertical cavity light emitting element

#51
20180138662
2018-05-17

Semiconductor optical device

#52
20180123320
2018-05-03

Semiconductor laser diode having multi-quantum well structure

#53
20180108805
2018-04-19

Semiconductor material doping

#54
20180097337
2018-04-05

Low voltage laser diodes on {20-21} gallium and nitrogen containing substrates

#55
20180034242
2018-02-01

Monolithic WDM VCSEL arrays by quantum well intermixing

#56
20180033917
2018-02-01

Method of forming nanorods and method of manufacturing semiconductor element

#57
20180006434
2018-01-04

Quantum cascade laser

#58
20170338626
2017-11-23

Laser diode chip

#59
20170331255
2017-11-16

Low voltage laser diodes on {20-21} gallium and nitrogen containing substrates

#60
20170201072
2017-07-13

Nitride semiconductor device and quantum cascade laser using the same

#61
20170201071
2017-07-13

Quantum cascade laser

#62
20170201069
2017-07-13

Distributed feedback semiconductor laser element

#63
20170155230
2017-06-01

Semiconductor laser element and method of manufacturing semiconductor laser element

#64
20160380409
2016-12-29

Controlling the emission wavelength in group III-V semiconductor laser diodes

#65
20160359300
2016-12-08

Light emitting structures with selective carrier injection into multiple active layers

#66
20160359084
2016-12-08

White light emitting structures with controllable emission color temperature

#67
20160352077
2016-12-01

Semiconductor laser device

#68
20160276805
2016-09-22

Vertical cavity surface emmiting laser

#69
20160260867
2016-09-08

Semiconductor material doping

#70
20160126701
2016-05-05

Semiconductor laser and manufacturing method thereof

#71
20160064901
2016-03-03

Nitride semiconductor quantum cascade laser

#72
20160028213
2016-01-28

Optical semiconductor device

#73
20160013620
2016-01-14

Low voltage laser diodes on {20-21} gallium and nitrogen containing substrates

#74
20150364649
2015-12-17

Nitride semiconductor device

#75
20150311677
2015-10-29

Semiconductor device

#76
20150229104
2015-08-13

Semiconductor light emitting element

#77
20150188290
2015-07-02

Interband cascade lasers with engineered carrier densities

#78
20150171265
2015-06-18

Quantum efficiency of multiple quantum wells

#79
20150131689
2015-05-14

Quantum cascade lasers with improved performance using interface roughness scattering

#80
20150063395
2015-03-05

Optoelectronic semiconductor chip

#81
20150055670
2015-02-26

Multi-beam semiconductor laser device

#82
20150053917
2015-02-26

Semiconductor light emitting device

#83
20140354367
2014-12-04

Surface-emitting laser element, method for manufacturing a surface-emitting laser element, and atomic oscillator

#84
20140339500
2014-11-20

Semiconductor light emitting device and method for manufacturing same

#85
20140247850
2014-09-04

Multiquantum well structures for suppression of electron leakage and reduction of threshold-current density in quantum cascade lasers

#86
20140203242
2014-07-24

Nitride semiconductor device

#87
20140183447
2014-07-03

Semiconductor light emitting element and method for manufacturing the same

#88
20140166980
2014-06-19

Semiconductor light emitting element

#89
20140162388
2014-06-12

Light emitting and lasing semiconductor methods and devices

#90
20140146837
2014-05-29

Semiconductor laser

#91
20140077159
2014-03-20

Semiconductor light emitting device and method for manufacturing same

#92
20140077154
2014-03-20

Semiconductor material doping

#93
20140077152
2014-03-20

III-V group compound devices with improved efficiency and droop rate

#94
20140065748
2014-03-06

Method of manufacturing multi-wavelengths distributed feedback (DFB) laser array including top separate confinement layer having different thickness laser units on the quantum-well layer grown by selective area epitaxial growth

#95
20140008607
2014-01-09

Quantum efficiency of multiple quantum wells

#96
20130228810
2013-09-05

SOLID STATE LIGHTING LUMINAIRE AND A FABRICATION METHOD THEREOF

#97
20130228806
2013-09-05

Light emitting device with graded composition hole tunneling layer

#98
20130136148
2013-05-30

Quantum cascade laser design with stepped well active region

#99
20130092896
2013-04-18

Optoelectronic device with a wide bandgap and method of making same

#100
20130056707
2013-03-07

Nitride semiconductor device

#101
20130028281
2013-01-31

Optoelectronic semiconductor chip

#102
20130022074
2013-01-24

Laser emission systems, heterostructure and active zone having coupled quantum-wells, and use for 1.55 mm laser emission

#103
20130022073
2013-01-24

Single-frequency distributed feedback laser diode with complex-coupling coefficient and transparent conductive cladding layer

#104
20130016746
2013-01-17

Vertical surface emitting semiconductor device

#105
20130001512
2013-01-03

Nitride group semiconductor light emitting device including multiquantum well structure

#106
20120286284
2012-11-15

Semiconductor light emitting device and wafer

#107
20120280207
2012-11-08

Optoelectronic semiconductor chip

#108
20120269221
2012-10-25

Interband cascade lasers with engineered carrier densities

#109
20120236892
2012-09-20

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

#110
20120236891
2012-09-20

LASERS WITH QUANTUM WELLS HAVING HIGH INDIUM AND LOW ALUMINUM WITH BARRIER LAYERS HAVING HIGH ALUMINUM AND LOW INDIUM WITH REDUCED TRAPS

#111
20120127564
2012-05-24

High-temperature interband cascade lasers

#112
20120080659
2012-04-05

NITRIDE BASED SEMICONDUCTOR OPTICAL DEVICE, EPITAXIAL WAFER FOR NITRIDE BASED SEMICONDUCTOR OPTICAL DEVICE, AND METHOD OF FABRICATING SEMICONDUCTOR LIGHT-EMITTING DEVICE

#113
20120068151
2012-03-22

Light emitting and lasing semiconductor methods and devices

#114
20120056157
2012-03-08

Semiconductor light emitting device and method for manufacturing same

#115
20120039350
2012-02-16

High power, high efficiency quantum cascade lasers with reduced electron leakage

#116
20120033699
2012-02-09

SURFACE-EMITTING LASER, SURFACE-EMITTING LASER ARRAY, DISPLAY APPARATUS INCLUDING THE SURFACE-EMITTING LASER ARRAY AS A LIGHT SOURCE, PRINTER HEAD, AND PRINTER

#117
20110272667
2011-11-10

SEMICONDUCTOR LIGHT EMITTING DEVICE

#118
20110268143
2011-11-03

Vertical Surface Emitting Semiconductor Device

#119
20110216797
2011-09-08

Self-oscillating semiconductor laser device and driving method thereof

#120
20110182312
2011-07-28

LASER DIODE USING ASYMMETRIC QUANTUM WELLS

#121
20110080930
2011-04-07

Highly power-efficient and broadband quantum cascade lasers

#122
20110069729
2011-03-24

Vertical surface emitting semiconductor device

#123
20110064102
2011-03-17

Growth structures and method for forming laser diodes on {30-31} or off cut gallium and nitrogen containing substrates

#124
20110064101
2011-03-17

Low Voltage Laser Diodes on Gallium and Nitrogen Containing Substrates

#125
20110064100
2011-03-17

Growth structures and method for forming laser diodes on {20-21} or off cut gallium and nitrogen containing substrates

#126
20110057167
2011-03-10

Nitride based semiconductor optical device, epitaxial wafer for nitride based semiconductor optical device, and method of fabricating semiconductor light-emitting device

#127
20110042646
2011-02-24

Nitride semiconductor wafer, nitride semiconductor chip, method of manufacture thereof, and semiconductor device

#128
20110042644
2011-02-24

Nitride based semiconductor optical device, epitaxial wafer for nitride based semiconductor optical device, and method of fabricating semiconductor light-emitting device

#129
20110026556
2011-02-03

Quantum cascade laser

#130
20110013658
2011-01-20

Infrared semiconductor laser

#131
20110006282
2011-01-13

Semiconductor light-emitting device, optical module, transmitter, and optical communication system

#132
20100327278
2010-12-30

LAMINATED STRUCTURES

#133
20100297784
2010-11-25

Nitride based semiconductor optical device, epitaxial wafer for nitride based semiconductor optical device, and method of fabricating semiconductor light-emitting device

#134
20100288997
2010-11-18

Semiconductor electroluminescent device with a multiple-quantum well layer formed therein

#135
20100276730
2010-11-04

SEMICONDUCTOR DEVICE

#136
20100252811
2010-10-07

Nitride semiconductor device

#137
20100213439
2010-08-26

Nitride based semiconductor optical device, epitaxial wafer for nitride based semiconductor optical device, and method of fabricating semiconductor light-emitting device

#138
20100189148
2010-07-29

Group III nitride semiconductor laser

#139
20100166033
2010-07-01

Semiconductor light-emitting device

#140
20100150194
2010-06-17

Nitride semiconductor optical element and manufacturing method thereof

#141
20100097690
2010-04-22

High-temperature interband cascade lasers

#142
20100080257
2010-04-01

Nitride semiconductor device

#143
20100040102
2010-02-18

Optoelectronic devices

#144
20090283749
2009-11-19

Quantum-well photoelectric device assembled from nanomembranes

#145
20090283748
2009-11-19

Semiconductor for use in harsh environments

#146
20090168634
2009-07-02

Optical disc drive apparatus with an indirect semiconductor laser containing an asymmetric quantum well structure

#147
20090166668
2009-07-02

Nitride semiconductor light emitting device

#148
20090090900
2009-04-09

Optoelectronic Semiconductor Chip

#149
20090080482
2009-03-26

Gain-coupled distributed feedback semiconductor laser including first-order and second-order gratings

#150
20090067462
2009-03-12

Semiconductor device

#151
20090059984
2009-03-05

Nitride-based semiconductor light-emitting device

#152
20090045392
2009-02-19

Nitride semiconductor device with superlattice active layer including barrier layers with different energy band gaps

#153
20090022196
2009-01-22

High efficiency intersubband semiconductor lasers

#154
20080217632
2008-09-11

Gan-Based III-V Compound Semiconductor Light-Emitting Element and Method for Manufacturing Thereof

#155
20080212637
2008-09-04

Distributed feedback semiconductor laser including wavelength monitoring section

#156
20080203418
2008-08-28

Semiconductor device

#157
20080191190
2008-08-14

Epi-structure with uneven multi-quantum well and the method thereof

#158
20080151956
2008-06-26

Interband tunneling intersubband transition semiconductor laser

#159
20080149917
2008-06-26

III-nitride compound semiconductor light emitting device

#160
20080081390
2008-04-03

Nitride-based light emitting heterostructure

#161
20080029758
2008-02-07

Nitride semiconductor device

#162
20080013579
2008-01-17

Buried-heterostructure semiconductor laser

#163
20070248131
2007-10-25

High efficiency intersubband semiconductor lasers

#164
20070086496
2007-04-19

Semiconductor light emitting device

#165
20070054427
2007-03-08

Terahertz radiating device based on semiconductor coupled quantum wells

#166
20070053404
2007-03-08

Complex-coupled distributed feedback semiconductor laser

#167
20070051963
2007-03-08

Semiconductor light source

#168
20070030874
2007-02-08

Surface-emitting laser element and laser module using the same

#169
20070012932
2007-01-18

Nitride semiconductor; light-emitting device, light-emitting diode, laser device and lamp using the semiconductor; and production methods thereof

#170
20060289854
2006-12-28

Optical semiconductor device with multiple quantum well structure

#171
20060274801
2006-12-07

Active region of a light emitting device optimized for increased modulation speed operation

#172
20060274793
2006-12-07

Control of output beam divergence in a semiconductor waveguide device

#173
20060131604
2006-06-22

Nitride semiconductor device

#174
20060131558
2006-06-22

Gallium-nitride-based light-emitting apparatus

#175
20060131557
2006-06-22

Superlattice optical semiconductor device where each barrier layer has high content of group III elements in center portion and low content near well layer

#176
20060118820
2006-06-08

Nitride-based light emitting heterostructure

#177
20060097242
2006-05-11

Semiconductor light-emitting device

#178
20050224781
2005-10-13

Ultraviolet group III-nitride-based quantum well laser diodes

#179
20050199903
2005-09-15

Semiconductor device having quantum well structure, and method of forming the same

#180
20050156153
2005-07-21

Quantum well structure and semiconductor device using it and production method of semiconductor element

#181
20050152420
2005-07-14

Semiconductor device having quantum well structure including dual barrier layers, semiconductor laser employing the semiconductor device, and methods of manufacturing the semiconductor device and the semiconductor laser

#182
20050127391
2005-06-16

Semiconductor device

#183
20050116216
2005-06-02

Optical semiconductor device with multiple quantum well structure

#184
20050116215
2005-06-02

Semiconductor light-emitting device having an active region with aluminum-containing layers forming the lowermost and uppermost layer

#185
20050098789
2005-05-12

Nitride semiconductor device

#186
20050036530
2005-02-17

Unipolar quantum cascade laser

#187
20050029508
2005-02-10

Terahertz radiating device based on semiconductor coupled quantum wells

#188
17141788
2023-10-17

Method and system for providing directional light sources with broad spectrum

#189
16170592
2019-12-10

Method and system for providing directional light sources with broad spectrum

#190
16028573
2019-09-17

Quantum well passivation structure for laser facets

#191
15798213
2018-11-06

Method and system for providing directional light sources with broad spectrum

#192
15173457
2017-12-05

Method and system for providing directional light sources with broad spectrum