ClassID:

223879

H04B10/296 - CPC Classification

Classification description:

Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication; Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form; Signal power control in a multiwavelength system, e.g. gain equalisation Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power

Recent Application in this class:
#1
20230318249
2023-10-05

SYSTEMS AND METHODS TO REDUCE THE POWER CONSUMPTION OF AN OPTICAL FIBER AMPLIFIER

#2
20230208548
2023-06-29

Optical transmission device

#3
20220385024
2022-12-01

Control Method And Optical Fiber Amplifier

#4
20220158734
2022-05-19

OPTICAL COMMUNICATION MODULE CAPABLE OF CONTROLLING OPTICAL POWER AND OPTICAL COMMUNICATION APPARATUS INCLUDING THE SAME

#5
20220140907
2022-05-05

OPTICAL ADD/DROP MULTIPLEXER AND OPTICAL TRANSMISSION METHOD

#6
20220131605
2022-04-28

Fast system optimization (FSO) with optimally placed recovery tones

#7
20220069903
2022-03-03

Per-band fault signaling in a multi-band optical transmission system

#8
20200153533
2020-05-14

Method and apparatus for optical power controls in optical networks

#9
20190349088
2019-11-14

Optical transmission device and method for controlling optical transmission device

#10
20190312641
2019-10-10

Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission method

#11
20190190604
2019-06-20

Proactive channel probing for wavelength switching in optical transmission systems

#12
20190058541
2019-02-21

Optical control device and optical branching device

#13
20190028202
2019-01-24

Signal light interruption detection device, optical amplifier, optical wavelength multiplex transmission device, and optical wavelength multiplex transmission system

#14
20190007156
2019-01-03

Method and apparatus for modifying channels in an optical medium

#15
20180269964
2018-09-20

Systems and methods for dynamic spectral shaping in optical communications

#16
20180210528
2018-07-26

Data port power transfer

#17
20180205453
2018-07-19

Optical transmission/reception device, optical communication system, and optical communication method

#18
20180054257
2018-02-22

WDM comb source based optical link with improved optical amplification

#19
20170294757
2017-10-12

Pump power modulation in a feed-forward control for suppressing power transients

#20
20170126326
2017-05-04

Optical relay device, optical communication system, optical relay method, and storage medium

#21
20160308617
2016-10-20

Method of changing operating mode of optical amplifier in an amplifier chain, optical apparatus and optical network

#22
20160142152
2016-05-19

Optical transmission system, optical reception apparatus, and signal adjustment method

#23
20160020866
2016-01-21

Optical transmitter and optical transmission method

#24
20160020852
2016-01-21

Optical transmitter and optical transmission method

#25
20150249500
2015-09-03

Apparatus and method to calculate a noise figure of an optical amplifier for wavelength channels in a partial-fill scenario to account for channel loading

#26
20150188286
2015-07-02

Optical amplifier, wavelength multiplexing optical transmission system, and program

#27
20150132009
2015-05-14

Optical transmission device and optical transmission method

#28
20140334814
2014-11-13

Adaptive optical amplifier for WDM systems

#29
20140043675
2014-02-13

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

#30
20130148961
2013-06-13

Wavelength division multiplexing transmission device

#31
20130045007
2013-02-21

Multi-wavelength light amplifier

#32
20120314278
2012-12-13

Optical amplifier and an optical amplification method

#33
20120269519
2012-10-25

Apparatus and method to calculate a noise figure of an optical amplifier for wavelength channels in a partial-fill scenario to account for channel loading

#34
20120243076
2012-09-27

Method, apparatus, and system for amplifying a burst optical signal

#35
20120236396
2012-09-20

Optical amplifying device and optical amplifying method

#36
20120229887
2012-09-13

Optical fiber amplifier with improved performance

#37
20120182602
2012-07-19

Optical fiber amplifier comprising an embedded filter and a control method with improved feedforward control performance

#38
20120106959
2012-05-03

Method and equipment for adjusting power amplification

#39
20120057876
2012-03-08

METHOD FOR AMPLIFYING A BURST OPTICAL SIGNAL, BURST OPTICAL AMPLIFIER AND SYSTEM, AND COMMUNICATIONS SYSTEM

#40
20120050845
2012-03-01

Reducing transients in an optical amplifier

#41
20110317999
2011-12-29

WAVELENGTH DIVISION MULTIPLEX DEVICE, WAVELENGTH DIVISION MULTIPLEX TRANSMISSION SYSTEM, AND WAVELENGTH MULTIPLEX SIGNAL CONTROL METHOD

#42
20110292497
2011-12-01

Apparatus and method for controlling gain profile of an optical amplifier

#43
20110262140
2011-10-27

Multi-wavelength light amplifier

#44
20110243555
2011-10-06

Channel power control in an optical link

#45
20110205620
2011-08-25

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

#46
20110199672
2011-08-18

Optical amplifier

#47
20110176802
2011-07-21

Channel Power Control in an Optical Network Node

#48
20110142456
2011-06-16

APPARATUS AND METHOD FOR DETECTING SIGNAL BEAM

#49
20110051228
2011-03-03

Method and device for providing and/or controlling an optical signal

#50
20100239263
2010-09-23

Optical relay device and optical relay transmission system

#51
20100221012
2010-09-02

Burst mode rare earth-doped fiber amplifier

#52
20100195192
2010-08-05

Optical signal amplifier, method of optical amplification and optical network

#53
20100178055
2010-07-15

Optical Amplifier with Optical Gain-Control

#54
20100157415
2010-06-24

Regulatable optical amplifier, and method for regulating an optical amplifier

#55
20100134862
2010-06-03

Optical amplifier

#56
20100091357
2010-04-15

Control apparatus of optical amplifier

#57
20100054758
2010-03-04

Optical receiver with threshold voltage compensation

#58
20090303576
2009-12-10

Transient optical power suppressing apparatus, method, and network

#59
20090237781
2009-09-24

Optical amplifier apparatus

#60
20090225403
2009-09-10

Multi-wavelength light amplifier

#61
20090207484
2009-08-20

Fast power transient supression in constant power-mode controlled optical amplifiers

#62
20090091819
2009-04-09

Apparatus and method for flattening gain profile of an optical amplifier

#63
20090086310
2009-04-02

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

#64
20090059354
2009-03-05

Optical amplifier transient control with gain error limits

#65
20080310858
2008-12-18

APPARATUS AND METHOD OF OPTICAL COMPENSATION FOR SUBMARINE OPTICAL CABLE

#66
20080291529
2008-11-27

Raman pump power control for gain flattening

#67
20080273876
2008-11-06

Transient optical power suppressing apparatus, method, and network

#68
20080247034
2008-10-09

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

#69
20080239469
2008-10-02

Gain control apparatus, optical transmission apparatus, gain control method for optical amplifier, and wavelength multiplex optical transmission system

#70
20080226287
2008-09-18

Method and apparatus for restoration of optical ring network operating conditions after a fault is repaired

#71
20080212966
2008-09-04

Optimised multiplexer/demultiplexer optical structure

#72
20080192333
2008-08-14

Dynamic raman tilt compensation

#73
20080158659
2008-07-03

Positive optical amplifier power transient suppression

#74
20080137179
2008-06-12

Method and Apparatus for Controlling an Optical Amplifier for Use in a Passive Optical Network

#75
20080131121
2008-06-05

Wavelength division multiplex optical ring network

#76
20080069572
2008-03-20

Optical transmission device

#77
20080068700
2008-03-20

Optical amplifying method, optical amplifying apparatus, and optical amplified transmission system using the apparatus

#78
20080056725
2008-03-06

Method and system for optical transmission signal level configuration

#79
20080037109
2008-02-14

Compensation of gain variations in a multistage optical amplifier

#80
20080024859
2008-01-31

Optical amplifier

#81
20080007819
2008-01-10

Fast dynamic gain control in an optical fiber amplifier

#82
20070291351
2007-12-20

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

#83
20070280683
2007-12-06

Method as a pre-condition for a gain control, optical access network, central station and terminal

#84
20070253718
2007-11-01

Optical Add/Drop Amplification Device

#85
20070201876
2007-08-30

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

#86
20070189767
2007-08-16

Method for amplifying a time-varying optical signal and optical amplification unit

#87
20070165299
2007-07-19

MULTI-WAVELENGTH LIGHT AMPLIFIER

#88
20070127112
2007-06-07

Optical communication apparatus

#89
20070115538
2007-05-24

Optical amplification unit with span loss tilt compensation, fiber optical transmission system comprising the same, and corresponding methods

#90
20070109630
2007-05-17

Optical amplifier

#91
20070109628
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#92
20070109627
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#93
20070109626
2007-05-17

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

#94
20070109625
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#95
20070109624
2007-05-17

Fast dynamic gain control in cascaded Raman fiber amplifiers

#96
20070103767
2007-05-10

Method for controlling the pump power of an optical amplifier

#97
20070098411
2007-05-03

Method and apparatus for automatic shut-down and start-up of optical amplifiers in optical networks

#98
20070086779
2007-04-19

Optical transmission systems and amplifier control apparatuses and methods

#99
20070077073
2007-04-05

Optical transmission device for controlling optical level of transmission signal in optical transmission system

#100
20070070492
2007-03-29

Controlling apparatus for optical amplifier and controlling method thereof

#101
20070064306
2007-03-22

Optical amplifier

#102
20070058242
2007-03-15

Fast dynamic gain control in an optical fiber amplifier

#103
20070058241
2007-03-15

Optical amplification apparatus having function of flattening channel output spectrum

#104
20070041085
2007-02-22

Optical transmission device equipped with pluggable variable optical attenuator

#105
20070002430
2007-01-04

Automated optical link power control

#106
20060285199
2006-12-21

Optical amplification system

#107
20060285198
2006-12-21

Raman, pump power control for gain flattening

#108
20060269284
2006-11-30

Optical transmission apparatus, continuity testing method therein, and optical transmission system

#109
20060263089
2006-11-23

Output stage for carrying out WDM message transmission and methods for exchanging full light sources in an output stage of this type

#110
20060222367
2006-10-05

Optical transmission apparatus

#111
20060222366
2006-10-05

Optical transmission apparatus

#112
20060221435
2006-10-05

Wavelength division multiplexing device, an optical leakage prevention method, and a wavelength division multiplexing communication system

#113
20060187539
2006-08-24

Fast dynamic gain control in an optical fiber amplifier

#114
20060187538
2006-08-24

Fast dynamic gain control in an optical fiber amplifier

#115
20060182446
2006-08-17

Integrated wired and wireless WDM PON apparatus using mode-locked light source

#116
20060177223
2006-08-10

Wavelength division multiplexing-passive optical network

#117
20060171019
2006-08-03

Fiber optical system with Raman tilt control

#118
20060146398
2006-07-06

Optical amplifier

#119
20060146397
2006-07-06

Optical amplifier having a constant gain profile

#120
20060087723
2006-04-27

Optical amplifier

#121
20060087721
2006-04-27

Optical signal amplification device

#122
20060056011
2006-03-16

Control device and control method of optical amplifier

#123
20060051093
2006-03-09

System and method for spectral loading an optical transmission system

#124
20060029393
2006-02-09

Wideband optical module and PON using the same

#125
20060024057
2006-02-02

Transient-based channel growth for optical transmission systems

#126
20060023298
2006-02-02

Amplification method and optical amplifier for wavelength division multiplexed signal light

#127
20060023297
2006-02-02

Transient control in optical transmission systems

#128
20050286899
2005-12-29

Method and system for wavelength division multiplexed optical signal transmission and optical repeater

#129
20050260000
2005-11-24

Optical receiver including a system and method of controlling gain of an optical amplifier

#130
20050237601
2005-10-27

Raman amplifier

#131
20050213980
2005-09-29

Optical transmission apparatus and optical transmission system

#132
20050201755
2005-09-15

Wavelength division-multiplex system

#133
20050168806
2005-08-04

Optical-level control method, optical-level control apparatus and wavelength-multiplexing optical network

#134
20050157976
2005-07-21

Optical receiver and optical transmission apparatus

#135
20050157380
2005-07-21

Optical amplification device

#136
20050152693
2005-07-14

Method for per-channnel power control in a DWDM network by means of an algorithm for adjusting the power of a dummy signal and the input power of an optical amplifier via channel-average Q-factor measurement

#137
20050128467
2005-06-16

Characteristic monitoring method of pumping light source for optical amplification and optical amplifier

#138
20050123295
2005-06-09

Transmission system and method for equalization of channels in the system

#139
20050117202
2005-06-02

Method and an apparatus for signal transmission

#140
20050116147
2005-06-02

Controlling apparatus for optical amplifier and controlling method thereof

#141
20050099675
2005-05-12

Long-wavelength-band gain-controlled optical amplifier

#142
20050094254
2005-05-05

Raman amplifier with gain control

#143
20050094252
2005-05-05

Optical communication system having dynamic gain equalization

#144
20050078358
2005-04-14

Wavelength division multiplexed optical amplifier

#145
20050046927
2005-03-03

Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied

#146
20050041971
2005-02-24

Multi-wavelength optical transmitter and bi-directional wavelength division multiplexing system using the same

#147
20050031343
2005-02-10

Optical transmission system and amplifier control apparatuses and methods

#148
10338097
2014-12-09

Method and apparatus providing transient control in optical add-drop nodes