ClassID:

215568

H01S3/094096 - CPC Classification

Classification description:

Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range; Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light Multi-wavelength pumping

Recent Application in this class:
#1
20260095012
2026-04-02

PUMP LIGHT GENERATION APPARATUS, OPTICAL AMPLIFIER AND PUMP LIGHT GENERATION METHOD

#2
20260074480
2026-03-12

Core Pumping High Power Doped Fiber Amplifier Realizing Full Band Gain Flatness

#3
20260066608
2026-03-05

RAMAN AMPLIFICATION SYSTEM, RAMAN AMPLIFICATION METHOD, AND RAMAN AMPLIFIER

#4
20250316947
2025-10-09

SYSTEM FOR PUMPING RAMAN AMPLIFICATION

#5
20250300419
2025-09-25

TUNABLE RAMAN PUMP FOR RAMAN AMPLIFICATION

#6
20250266656
2025-08-21

HYBRID OPTICAL AMPLIFIER

#7
20250239830
2025-07-24

Erbium Doped Fiber Amplifier with Multiple Pump Lasers

#8
20250079787
2025-03-06

PERFORMANCE ENHANCEMENT OF YTTERBIUM-DOPED FIBER AMPLIFIER EMPLOYING A DUAL-STAGE IN-BAND ASYMMETRICAL PUMPING

#9
20240405876
2024-12-05

RAMAN OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND METHOD FOR ADJUSTING RAMAN OPTICAL AMPLIFIER

#10
20240275120
2024-08-15

2.8 MICROMETER AND 3.5 MICROMETER DUAL-WAVELENGTH MID-INFRAREDFIBER LASER

#11
20240030674
2024-01-25

NANOSECOND PULSED WAVELENGTH AGILE LASER

#12
20240014623
2024-01-11

FIBER LASER DEVICE

#13
20230344188
2023-10-26

METHOD TO GENERATE COHERENT ULTRAVIOLET RADIATION FROM LASER BEAMS

#14
20230291168
2023-09-14

Femtosecond pulse laser apparatus

#15
20230268709
2023-08-24

COLLOIDAL QUANTUM FOUNTAINS

#16
20230223732
2023-07-13

LASER DEVICE AND OPTICAL APPARATUS INCLUDING THE SAME

#17
20230187894
2023-06-15

Tunable microwave source based on dual-wavelength lasing of single optical whispering gallery microcavity

#18
20230142798
2023-05-11

RAMAN AMPLIFIER, RAMAN AMPLIFICATION METHOD, AND RAMAN AMPLIFICATION SYSTEM

#19
20230139856
2023-05-04

PHOSPHOROUS DOPED FIBER-BASED RAMAN AMPLIFIER

#20
20230128958
2023-04-27

SINGLE-FREQUENCY LASER APPARATUS

#21
20230074977
2023-03-09

MULTI-BAND PUMPING OF DOPED FIBER SOURCES

#22
20230064314
2023-03-02

LINE NARROWING GAS LASER DEVICE, WAVELENGTH CONTROL METHOD, AND ELECTRONIC DEVICE MANUFACTURING METHOD

#23
20220407283
2022-12-22

Downhole laser system with an improved laser output production and data collection

#24
20220320815
2022-10-06

OPTICAL AMPLIFICATION APPARATUS AND SIGNAL AMPLIFICATION METHOD OF OPTICAL AMPLIFICATION APPARATUS

#25
20220255289
2022-08-11

Laser

#26
20220239055
2022-07-28

MULTIPLE COHERENT WAVELENGTH OPTICAL SOURCES

#27
20220239051
2022-07-28

SELECTABLE WAVELENGTH CASCADING COHERENT OPTICAL PUMP SOURCES

#28
20220228972
2022-07-21

Continuous tunable RF sensor using rydberg atoms with high transmissivity

#29
20220181838
2022-06-09

Femtosecond pulse laser apparatus

#30
20220045473
2022-02-10

Optical amplifier, optical amplifier equalizing method, and transmission system

#31
20210344163
2021-11-04

Method, device and system for dynamically controlling gain of Raman optical fiber amplifier

#32
20210281036
2021-09-09

Broadband Tm-doped optical fiber amplifier

#33
20210278215
2021-09-09

Stimulated brillouin ring laser gyroscope with optical frequency offset of counterpropagating pump laser signals

#34
20210234327
2021-07-29

Systems, apparatus, and methods for producing ultra stable, single-frequency, single-transverse-mode coherent light in solid-state lasers

#35
20210184419
2021-06-17

Light source for Raman amplification, light source system for Raman amplification, Raman amplifier, and Raman amplifying system

#36
20210119403
2021-04-22

Downhole laser system with an improved laser output production and data collection

#37
20210066876
2021-03-04

Fiber-based continuous optical beat laser source to generate terahertz waves using lithium niobate crystal embedded in the fiber

#38
20200366047
2020-11-19

High power and multiple wavelength Raman laser of visible light

#39
20200304208
2020-09-24

Codirectional ROPA supplied with power via a separate fiber transmitting data in opposite direction

#40
20200295524
2020-09-17

Laser source, particularly for industrial processes

#41
20200249087
2020-08-06

Compact, power-efficient stacked broadband optical emitters

#42
20200153194
2020-05-14

Laser amplifier module

#43
20200150511
2020-05-14

Scalable feedback control of single-photon sources for photonic quantum technologies

#44
20200076152
2020-03-05

Lidar system operating at 1200-1400 NM

#45
20200059060
2020-02-20

Multi-wavelength sources based on parametric amplification

#46
20200033460
2020-01-30

Multifrequency ocean lidar power optimizer

#47
20190372298
2019-12-05

Raman optical amplifier and raman optical amplification method

#48
20190341739
2019-11-07

Narrow-linewidth microcavity brillouin laser with suppressed temperature fluctuations

#49
20190280450
2019-09-12

Dual-comb generation from a single laser cavity via spectral subdivision

#50
20190229488
2019-07-25

Systems, apparatus, and methods for producing ultra stable, single-frequency, single-transverse-mode coherent light in solid-state lasers

#51
20190221990
2019-07-18

Spectrally multiplexing diode pump modules to improve brightness

#52
20190221988
2019-07-18

Amplifier assembly with semiconductor optical amplifier

#53
20190199053
2019-06-27

Modal instability control in fiber lasers

#54
20190020171
2019-01-17

Ultra-wideband Raman amplifier with comb source

#55
20180331503
2018-11-15

Wavelength-variable laser

#56
20180331487
2018-11-15

Active element slab for a laser source

#57
20180241469
2018-08-23

FEEDBACK CONTROLLED RAMAN AMPLIFICATION IN OPTICAL SYSTEM

#58
20180166846
2018-06-14

Widely and rapidly tunable multi-wavelength laser

#59
20180159291
2018-06-07

Laser apparatus and method having plural excitation sources with associated beam splitting arrangements for adaptive control

#60
20180131155
2018-05-10

Photonic devices and methods of using and making photonic devices

#61
20180123311
2018-05-03

Light source for Raman amplification, light source system for Raman amplification, Raman amplifier, and Raman amplifying system

#62
20180069637
2018-03-08

Optical transmission system and related remote optically pumped amplifier (ROPA) and method

#63
20180019567
2018-01-18

CO2 laser

#64
20170302048
2017-10-19

Stabilized non-reciprocal fiber-ring brillouin laser source

#65
20170299433
2017-10-19

Compact, power-efficient stacked broadband optical emitters

#66
20170271837
2017-09-21

Spectrally multiplexing diode pump modules to improve brightness

#67
20170222390
2017-08-03

Dynamically-distributable multiple-output pump for fiber optic amplifier

#68
20170201060
2017-07-13

Dual channel method for pumping and cooling lasers and laser device

#69
20170179673
2017-06-22

Widely and rapidly tunable multi-wavelength laser

#70
20170071695
2017-03-16

MEDICAL LASER LIGHT SOURCE SYSTEM

#71
20170063019
2017-03-02

Optical fiber laser device and optical fiber laser providing method

#72
20170025814
2017-01-26

Raman pump laser control apparatus and control method therefor

#73
20160301184
2016-10-13

Solid-state laser system

#74
20160285237
2016-09-29

Method of designing semiconductor laser device, method of designing raman amplifier, methods of manufacturing semiconductor laser device, semiconductor laser device, raman amplifier, and optical communication system

#75
20160276799
2016-09-22

Multi wavelength laser device

#76
20160248216
2016-08-25

Photonic devices and methods of using and making photonic devices

#77
20160164248
2016-06-09

Multi-wavelength distributed raman amplification set-up

#78
20160094007
2016-03-31

Optical amplification apparatus, optical transmission apparatus, and optical transmission system

#79
20160087393
2016-03-24

Operating a laser diode in an optical network

#80
20160072250
2016-03-10

Generation of a high power pulse-laser using field generated coherence

#81
20160072249
2016-03-10

Dual wavelength pumped laser system and method

#82
20160049766
2016-02-18

Optical fiber system having a remote power module

#83
20160013608
2016-01-14

Ultraviolet triply-optically-pumped atomic lasers (TOPAL)

#84
20160006209
2016-01-07

Pump laser architecture and remotely pumped raman fiber amplifier laser guide star system for telescopes

#85
20150340831
2015-11-26

Systems and methods of achieving high brightness infrared fiber parametric amplifiers and light sources

#86
20150311975
2015-10-29

Feedback controlled Raman amplification in optical system

#87
20150311668
2015-10-29

Method and apparatus for depolarizing light

#88
20150295380
2015-10-15

Optically end-pumped slab amplifier comprising pump modules arranged in a distributed manner

#89
20150288136
2015-10-08

Transmission link with multiple order Raman pumps

#90
20150229098
2015-08-13

Raman amplifier and gain control method

#91
20150214913
2015-07-30

Hybrid fiber amplifier and method for adjusting gain and gain slope thereof

#92
20150188285
2015-07-02

Method and apparatus for determining optical fibre characteristics

#93
20150085350
2015-03-26

Multi-wavelength distributed raman amplification set-up

#94
20150048238
2015-02-19

Repeater, excitation light supply device used for the same, and excitation light supply method

#95
20150015953
2015-01-15

Single-pump multi-wavelength lasing semiconductor Raman pump laser and pump combination apparatus

#96
20140300953
2014-10-09

Tunable multi-mode laser

#97
20140269800
2014-09-18

Photonic devices and methods of using and making photonic devices

#98
20140086271
2014-03-27

Molecular gas laser

#99
20130329277
2013-12-12

Optical amplifier and optical amplifier control method

#100
20130314767
2013-11-28

Systems and methods for fiber optic parametric amplification and nonlinear optical fiber for use therein

#101
20130287058
2013-10-31

System and method for wavelength beam combination on a single laser emitter

#102
20130286468
2013-10-31

Raman amplifier, optical repeater, and Raman amplification method

#103
20130162987
2013-06-27

Excitation light source for raman amplification, raman amplifier, and optical transmission system

#104
20130121693
2013-05-16

OPTICAL TRANSMISSION SYSTEM, PUMP-LIGHT SUPPLY CONTROL METHOD, AND PUMP LIGHT SUPPLY APPARATUS

#105
20130063809
2013-03-14

Optical amplifier and multicore fiber

#106
20130028276
2013-01-31

High-power CW fiber-laser

#107
20130016741
2013-01-17

Optical fiber amplifier and fiber laser apparatus using the same

#108
20130003775
2013-01-03

COlaser

#109
20130003774
2013-01-03

CO2 laser

#110
20130003772
2013-01-03

Molecular gas laser

#111
20120307351
2012-12-06

Raman amplifier and raman amplifier adjustment method

#112
20120294607
2012-11-22

Optical pumping and powering in spatially multiplexed transmission links

#113
20120257270
2012-10-11

Systems and methods for fiber optic parametric amplification and nonlinear optical fiber for use therein

#114
20120250715
2012-10-04

Optoelectronic Semiconductor Component

#115
20120224253
2012-09-06

DISTRIBUTED RAMAN AMPLIFICATION APPARATUS, DISTRIBUTED RAMAN AMPLIFICATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING DISTRIBUTED RAMAN AMPLIFICATION PROGRAM

#116
20120177080
2012-07-12

All-silicon Raman amplifiers and laser based on micro ring resonators

#117
20120002283
2012-01-05

METHOD AND APPARATUS FOR RAMAN CO-PUMPS

#118
20110310921
2011-12-22

Wavelength beam combining laser with multiple outputs

#119
20110305256
2011-12-15

WAVELENGTH BEAM COMBINING BASED LASER PUMPS

#120
20110305250
2011-12-15

WAVELENGTH BEAM COMBINING BASED PULSED LASERS

#121
20110286489
2011-11-24

All-silicon raman amplifiers and laser based on micro ring resonators

#122
20110274125
2011-11-10

Optical multiplexer and fiber laser

#123
20110216801
2011-09-08

PROCESS FOR EMISSION OF PULSED LASER RADIATION AND ASSOCIATED LASER SOURCE

#124
20110216792
2011-09-08

Scalable wavelength beam combining system and method

#125
20110216417
2011-09-08

Selective repositioning and rotation wavelength beam combining system and method

#126
20110176201
2011-07-21

Modular set of devices for optical amplification of signal by raman fiber amplifier

#127
20110141553
2011-06-16

Raman amplifier, optical repeater, and Raman amplification method

#128
20110080634
2011-04-07

Multi-stage raman amplifier

#129
20110026104
2011-02-03

Raman amplifier and raman amplifier adjustment method

#130
20110019268
2011-01-27

Raman amplifier and raman amplifier adjustment method

#131
20110013268
2011-01-20

Systems and methods of achieving high brightness infrared fiber parametric amplifiers and light sources

#132
20110013267
2011-01-20

Fiber-adaptive distributed Raman amplifier pump setup scheme

#133
20100315700
2010-12-16

Broadband neodymium-ytterbium-silica doped amplified spontaneous emission optical fiber source by spectral filtered reinjected signals

#134
20100296530
2010-11-25

Method for operating an ignition device, and an ignition device

#135
20100245986
2010-09-30

Optical amplifier and a method of light amplification

#136
20100166027
2010-07-01

Laser apparatus with all optical-fiber

#137
20100157416
2010-06-24

Optical amplifier provided with control function of pumping light, and optical transmission system using the same

#138
20100129081
2010-05-27

Distributed Raman amplifier and optical communication system

#139
20100103959
2010-04-29

Selectively pumping a gain-doped region of an optical fiber

#140
20100103957
2010-04-29

FRACTIONAL RAMAN ORDER PUMPING IN OPTICAL COMMUNICATION SYSTEMS

#141
20100067099
2010-03-18

RAMAN AMPLIFIER, OPTICAL REPEATER, AND RAMAN AMPLIFICATION METHOD

#142
20100034500
2010-02-11

Sequentially increasing effective area in higher-order mode (HOM) Signal Propagation

#143
20100027938
2010-02-04

Pumping in a Higher-Order Mode That is Substantially Identical To a Signal Mode

#144
20100008664
2010-01-14

Preventing dielectric breakdown in optical fibers

#145
20100008633
2010-01-14

Segmented gain-doping of an optical fiber

#146
20100002992
2010-01-07

Pumping in a higher-order mode that is different from a signal mode

#147
20090323732
2009-12-31

Optical Wave Generator

#148
20090257116
2009-10-15

Erbium and Erbium/Ytterbium cladding pumped hybrid optical amplifier

#149
20090251768
2009-10-08

Multi-band hybrid SOA-Raman amplifier for CWDM

#150
20090219609
2009-09-03

Optical amplifier provided with control function of pumping light, and optical transmission system using the same

#151
20090201966
2009-08-13

Process for a mission of pulsed laser radiation and associated laser source

#152
20090191657
2009-07-30

All-silicon raman amplifiers and lasers based on micro ring resonators

#153
20090190206
2009-07-30

Raman amplifying device and control method

#154
20090190205
2009-07-30

RAMAN AMPLIFYING DEVICE AND CONTROL METHOD

#155
20090190204
2009-07-30

Wavelength division multiplexing optical transmission system utilizing distributed raman amplification

#156
20090175628
2009-07-09

Optical amplifier capable of amplifying optical signals that traverse separate transmission fibers

#157
20090174933
2009-07-09

Optical amplifier with Raman and rare-earth-doped fiber amplifier both pumped efficiently using direct and reflected pump light

#158
20090174932
2009-07-09

Optical amplifier bandwidth alteration

#159
20090153951
2009-06-18

RAMAN AMPLIFIER AND RAMAN AMPLIFIER ADJUSTMENT METHOD

#160
20090080893
2009-03-26

Multi-band hybrid SOA-Raman amplifier for CWDM

#161
20080310464
2008-12-18

Device for Generating and Modulating a High-Frequency Signal

#162
20080297883
2008-12-04

Raman Amplifier Structure

#163
20080291529
2008-11-27

Raman pump power control for gain flattening

#164
20080247034
2008-10-09

Fast dynamic gain control in a bidirectionally-pumped Raman fiber amplifier

#165
20080158658
2008-07-03

Distributed Raman amplifier and WDM optical transmission system

#166
20080112044
2008-05-15

Multi-band hybrid SOA-raman amplifier for CWDM

#167
20080089380
2008-04-17

Laser arrangement and semiconductor laser for optically pumping a laser

#168
20080074733
2008-03-27

Raman amplifier and optical communication system including the same

#169
20080040057
2008-02-14

Method and apparatus for controlling multiple-wavelength-pumped Raman amplifier and computer product

#170
20080007819
2008-01-10

Fast dynamic gain control in an optical fiber amplifier

#171
20070297482
2007-12-27

Multi-wavelength pump method for improving performance of erbium-based lasers

#172
20070291351
2007-12-20

Method, apparatus and system for cost effective optical transmission with fast Raman tilt transient control

#173
20070258132
2007-11-08

Feedback dynamic gain control for a WDM system employing multi wavelength pumped Raman fiber amplifiers

#174
20070247701
2007-10-25

Raman amplifier, optical repeater, and Raman amplification method

#175
20070236781
2007-10-11

Bi-directionally pumped optical fiber lasers and amplifiers

#176
20070230960
2007-10-04

Multi-band hybrid SOA-raman amplifier for CWDM

#177
20070223085
2007-09-27

Multi-stage Raman amplifier

#178
20070171517
2007-07-26

Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier

#179
20070115537
2007-05-24

Method and an optical amplifier assembly for adjusting Raman gain

#180
20070115536
2007-05-24

RAMAN AMPLIFIER AND OPTICAL TRANSMISSION SYSTEM

#181
20070109628
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#182
20070109627
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#183
20070109626
2007-05-17

Fast dynamic gain control in a bidirectionally-pumped Raman fiber amplifier

#184
20070109625
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#185
20070109624
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#186
20070109623
2007-05-17

Fast Dynamic Gain Control in a Bidirectionally-Pumped Raman Fiber Amplifier

#187
20070086079
2007-04-19

Multi-band hybrid SOA-raman amplifier for CWDM

#188
20070025409
2007-02-01

All-silicon raman amplifiers and lasers based on micro ring resonators

#189
20070002904
2007-01-04

System and method for fractional Raman order pumping in optical communication systems

#190
20070002431
2007-01-04

Tellurite glass composite, optical waveguide and optical amplifier using the same

#191
20060291520
2006-12-28

Laser system with multiple wavelength diode pump head and associated method

#192
20060291037
2006-12-28

Multi-band hybrid SOA-Raman amplifier for CWDM

#193
20060285198
2006-12-21

Raman, pump power control for gain flattening

#194
20060193035
2006-08-31

Optical amplification system for variable span length WDM optical communication systems

#195
20060187538
2006-08-24

Fast dynamic gain control in an optical fiber amplifier

#196
20060164716
2006-07-27

Method of controlling the gain of a raman amplifier

#197
20060159149
2006-07-20

Systems and methods for optical pumping using depolarizing filters

#198
20060158717
2006-07-20

Multiple stage Raman optical amplifier

#199
20060152796
2006-07-13

Optical amplifier with pump light source control for Raman amplification

#200
20060126159
2006-06-15

Parallel-structured Raman optical amplifier

#201
20060126158
2006-06-15

Raman amplifier

#202
20060109543
2006-05-25

Multi-stage raman amplifier

#203
20060061855
2006-03-23

Optical node

#204
20060050365
2006-03-09

Raman amplification system utilizing modulated second-order raman pumping

#205
20060018008
2006-01-26

Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier

#206
20060001950
2006-01-05

Method and apparatus for controlling multiple-wavelength-pumped raman amplifier and computer product

#207
20050286118
2005-12-29

Pumping method and unit for optical amplifiers

#208
20050265647
2005-12-01

System for amplifying optical signals

#209
20050237601
2005-10-27

Raman amplifier

#210
20050237600
2005-10-27

Optical amplifier and optical communication system

#211
20050225843
2005-10-13

Control method of optical fiber amplifier and optical transmission system

#212
20050220161
2005-10-06

Apparatus for emitting light with controllable degree of polarization

#213
20050219681
2005-10-06

Optical amplifier and controlling method for Raman amplifier

#214
20050213985
2005-09-29

Optical transmission systems including optical amplifiers and methods of use therein

#215
20050213615
2005-09-29

Device for generating laser radiation in the infrared

#216
20050185885
2005-08-25

Optical multiplexing method and optical multiplexer, and optical amplifier using same

#217
20050179990
2005-08-18

Pumping light source having amplification-band extending function for Raman amplification, Raman amplifier using the same, and method and program for setting amplification band extension

#218
20050174630
2005-08-11

Raman optical amplifier, optical transmission system using the same, and raman optical amplification method

#219
20050163453
2005-07-28

Optical fiber, optical amplification/oscillation device, laser light generating device, laser display unit, and color laser display unit

#220
20050163450
2005-07-28

Optical fiber, optical amplification/oscillation device, laser light generating device, laser display unit, and color laser display unit

#221
20050157379
2005-07-21

Raman amplifier

#222
20050152025
2005-07-14

Raman amplification system utilizing bi-directional pumping

#223
20050135452
2005-06-23

Diode-pumped solid-state laser oscillator

#224
20050132785
2005-06-23

Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification

#225
20050122570
2005-06-09

Raman amplifier and raman pumping method

#226
20050100060
2005-05-12

Multi-group multi-wavelength laser matrix

#227
20050094254
2005-05-05

Raman amplifier with gain control

#228
20050078355
2005-04-14

Raman amplification repeater

#229
20050069010
2005-03-31

Laser apparatus and image display using the same

#230
20050063043
2005-03-24

Raman amplifier utilizing pump modulation for expanding gain band width

#231
20050057794
2005-03-17

Raman excitation control method and optical transmission system using the same

#232
20050047466
2005-03-03

Gain boost with synchronized multiple wavelength pumping in a solid-state laser

#233
20050046929
2005-03-03

Optical transmission systems including signal varying devices and methods

#234
20050024714
2005-02-03

Optical amplifier with pump light source control for Raman amplification

#235
20050024712
2005-02-03

Raman amplifier and Raman amplifier adjustment method

#236
20050018727
2005-01-27

Semiconductor laser device, semiconductor laser module, and Raman amplifier using the device or module

#237
19412866
2026-04-28

Narrow-linewidth brillouin laser stabilized by optical self-injection locking

#238
18098628
2026-06-02

Laser reference frequency source stabilized by optical self-injection locking

#239
16054233
2020-11-03

Optical-frequency up-converting spectrometric imager

#240
15965911
2019-12-31

Stabilized microwave-frequency source

#241
15828415
2019-02-19

Optical amplifier with multi-wavelength pumping