ClassID:

231341

H04Q2011/0049 - CPC Classification

Classification description:

Selecting arrangements for multiplex systems using optical switching; Switch and router aspects; Operation Crosstalk reduction; Noise; Power budget

Recent Application in this class:
#1
20260095684
2026-04-02

SYSTEM AND METHOD FOR SAVING ENERGY IN A PASSIVE OPTICAL NETWORK

#2
20250373962
2025-12-04

SWITCH SYSTEM, SWITCH APPARATUS, AND LINEAR DRIVE PLUGGABLE OPTICS APPARATUS

#3
20250274685
2025-08-28

MULTI-DEVICE OPTICAL SWITCH

#4
20240365028
2024-10-31

WAVELENGTH SELECTIVE SWITCH AND OPTICAL CROSS-CONNECT DEVICE INCLUDING WAVELENGTH SELECTIVE SWITCH

#5
20240340558
2024-10-10

INTERNAL REFLECTION CANCELLATION FOR MULTI-PORT FULL DUPLEX NODE AND AMPLIFIER

#6
20240334097
2024-10-03

PON WITH ACTIVE ADAPTION OF OPTICAL DISTRIBUTION NETWORK

#7
20240276127
2024-08-15

Multi-device wavelength selective switch

#8
20240235717
2024-07-11

OPTICAL FIBER TEST METHOD, ROADM SYSTEM, SERVER AND STORAGE MEDIUM

#9
20230319444
2023-10-05

Method and system for allocating dedicated protected spectrum based on crosstalk awareness

#10
20230140721
2023-05-04

Method and system to implement a demarcation point between a provider network and a customer network

#11
20230107882
2023-04-06

Control of optical-modulation amplitude for burst-mode transmission

#12
20220264200
2022-08-18

Reduced crosstalk photonic switch

#13
20210160596
2021-05-27

Reduced crosstalk photonic switch

#14
20210144457
2021-05-13

Optical network power conservation

#15
20210081776
2021-03-18

Configuration of an optical switch fabric using machine learning

#16
20200366977
2020-11-19

Optical device and optical signal processing method

#17
20200296488
2020-09-17

Network and power sharing device

#18
20200236448
2020-07-23

Reduced crosstalk photonic switch

#19
20200145739
2020-05-07

Low-crosstalk electro-optical mach-zehnder switch

#20
20200137467
2020-04-30

Optical switch fabric with bias control

#21
20200073054
2020-03-05

Space-division multiplexed reconfigurable, wavelength selective switch

#22
20200045388
2020-02-06

OPTICAL COMMUNICATION DEVICE AND OPTICAL COMMUNICATION SYSTEM

#23
20190289373
2019-09-19

Reduced crosstalk photonic switch

#24
20190253151
2019-08-15

Method and apparatus for transmitting optical signal, and wavelength selective switch

#25
20190149897
2019-05-16

Wide passband wavelength selective switch

#26
20190082244
2019-03-14

Telecommunications access network

#27
20190037287
2019-01-31

Low-crosstalk electro-optical Mach-Zehnder switch

#28
20190028785
2019-01-24

Optical switch device

#29
20180294912
2018-10-11

Optical wavelength selective switches with guard bands

#30
20180212701
2018-07-26

Low noise colorless, directionless, contentionless reconfigurable optical add/drop multiplexer

#31
20180212700
2018-07-26

Apparatus for protecting an optical link

#32
20180145785
2018-05-24

Power supply path-switching device, power supply path-switching system, and power supply path-switching method

#33
20180102851
2018-04-12

Data transport using pairwise optimized multi-dimensional constellation with clustering

#34
20180098138
2018-04-05

High capacity fiber-optic integrated transmission and switching systems

#35
20180091877
2018-03-29

Low power techniques for small form-factor pluggable applications

#36
20180084318
2018-03-22

Low-crosstalk electro-optical Mach-Zehnder switch

#37
20180077475
2018-03-15

Framing method and apparatus in passive optical network and system

#38
20180063607
2018-03-01

Colorless, directionless, contentionless, spaceless, and flexible grid reconfigurable optical node

#39
20180054664
2018-02-22

Method and apparatus for establishing transmission path for exchanging optical signal

#40
20180035182
2018-02-01

Optical cross-connect node and optical signal switching method

#41
20170353265
2017-12-07

Spatial Mode Multiplexer With Optical Reference Path

#42
20170346591
2017-11-30

Noise suppression and amplification systems and methods for colorless optical add/drop devices

#43
20170303017
2017-10-19

Optical switches and methods of reducing cross-talk

#44
20170302399
2017-10-19

DATA TRANSMISSION METHOD, APPARATUS, AND SYSTEM

#45
20170238075
2017-08-17

Optical switch fabric with bias control

#46
20170195755
2017-07-06

Systems and methods for coupling a fiber to a polarization sensitive photonic integrated circuit

#47
20170180833
2017-06-22

Transition replacement for current leveling in a high-speed transmitter

#48
20170171646
2017-06-15

Modular photonic switch architecture

#49
20170155466
2017-06-01

Distributed spatial mode processing for spatial-mode multiplexed communication systems

#50
20170127157
2017-05-04

High port count switching module, apparatus, and method

#51
20170126350
2017-05-04

PASSIVE OPTICAL NETWORK USER TERMINAL AND METHOD OF POWER SUPPLY CONTROL AND POWER SUPPLY STATE REPORTING FOR THE SAME

#52
20170111715
2017-04-20

OPTICALLY CONNECTABLE CONTROLLER USING PASSIVE OPTICAL DEVICES

#53
20170099529
2017-04-06

Low-crosstalk electro-optical Mach-Zehnder switch

#54
20170064417
2017-03-02

Scalable silicon photonic switching architectures for optical networks

#55
20170052394
2017-02-23

Electrical crosstalk reduction in a high-order digital optical modulator

#56
20170034602
2017-02-02

Optical transmitter and control method

#57
20170026081
2017-01-26

METHOD FOR PERFORMING PAIRING IN ACCESS NETWORK APPLIED G.HN TECHNOLOGY THERETO, ACCESS NETWORK MULTIPLEXER (GAM), ACCESS NETWORK TERMINAL (GNT), AND ACCESS NETWORK SYSTEM USING THE SAME

#58
20160381443
2016-12-29

Routing Methods for Dual Plane Switch Architectures

#59
20160381441
2016-12-29

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL TRANSMISSION METHOD

#60
20160329971
2016-11-10

Information processing system using optically encoded signals

#61
20160316283
2016-10-27

Nonlinear penalty estimation using spectral inversion in optical transport networks

#62
20160269142
2016-09-15

Distributed spatial mode processing for spatial-mode multiplexed communication systems

#63
20160164623
2016-06-09

Wavelength selective switch having integrated channel monitor

#64
20160150301
2016-05-26

PACKET TRANSFER SYSTEM, CONTROL DEVICE, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

#65
20160124146
2016-05-05

Optical module and optical network system

#66
20160087717
2016-03-24

Optical networks

#67
20160080032
2016-03-17

Method and arrangement for signal transmission and compensation of back reflections in optical access PON systems

#68
20160066072
2016-03-03

Method and a device for cross-talk correction of measured intensities

#69
20160025934
2016-01-28

Dual-ganged optical switch

#70
20160021436
2016-01-21

Optical multiplexor switch for free space optical communication

#71
20150372781
2015-12-24

High capacity fiber-optic integrated transmission systems

#72
20150350753
2015-12-03

Scalable silicon photonic switching architectures for optical networks

#73
20150318918
2015-11-05

Communication network element and method of mitigating an optical jamming attack against an optical communication system

#74
20150189407
2015-07-02

System and method for reducing the stimulated Raman scattering crosstalk in channel monitoring

#75
20150055951
2015-02-26

Method for crosstalk and power optimization in silicon photonic based switch matrices

#76
20150030329
2015-01-29

Passive optical network user terminal and method of power supply control and power supply state reporting for the same

#77
20150023661
2015-01-22

Optimal positioning of reflecting optical devices

#78
20140376911
2014-12-25

METHOD AND ARRANGEMENT FOR SIGNAL TRANSMISSION AND COMPENSATION OF BACK REFLECTIONS IN OPTICAL ACCES PON SYSTEMS

#79
20140328154
2014-11-06

Method for crosstalk and power optimization in silicon photonic based switch matrices

#80
20140294344
2014-10-02

Compact multicast switches, MxN switches and MxN splitters

#81
20130343752
2013-12-26

Optical switch with power equalization

#82
20130243365
2013-09-19

Optical switching apparatus and method

#83
20130236179
2013-09-12

Passive optical network user terminal and method of power supply control and power supply state reporting for the same

#84
20130039650
2013-02-14

Optical packet switching system

#85
20130016967
2013-01-17

OPTICAL PACKET SWITCHING APPARATUS

#86
20120230684
2012-09-13

Burst power measurements using averaged power measurement

#87
20120224850
2012-09-06

Optical networks

#88
20120155862
2012-06-21

Optical packet switching system

#89
20120148239
2012-06-14

Optical packet switching apparatus, optical packet switching system, and optical packet in-line amplifier apparatus

#90
20120121255
2012-05-17

Optical switching device and communications system

#91
20120087657
2012-04-12

Orthogonally-combining wavelength selective switch multiplexer and systems and methods using same

#92
20120027411
2012-02-02

Passive optical network user terminal and method of power supply control and power supply state reporting for the same

#93
20120027370
2012-02-02

OPTICAL DEVICE

#94
20120019810
2012-01-26

Multi-channel optical signal monitoring device and method

#95
20110293272
2011-12-01

Optical switch with power equalization

#96
20110217000
2011-09-08

Optical switch and optical-switch control method

#97
20110116797
2011-05-19

Signal power based routing in WDM all-optical networks

#98
20110076022
2011-03-31

Optical communications network, power supply controlling method, station-side equipment, subscriber-side equipment, and semiconductor chip

#99
20110076015
2011-03-31

Optical network equipment and optical network

#100
20100272434
2010-10-28

Channel validation in optical networks using multi-channel impairment evaluation

#101
20100074629
2010-03-25

Optical communication apparatus, control apparatus, and method for controlling optical output

#102
20100074615
2010-03-25

Switch device, connection system and connection control method

#103
20100028007
2010-02-04

Optical transmission apparatus

#104
20090304329
2009-12-10

Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching

#105
20090238565
2009-09-24

Optical switch with power equalization

#106
20090196607
2009-08-06

Optical packet switching apparatus and optical packet switching method

#107
20090190497
2009-07-30

Method for controlling the establishment of a connection in an optical network

#108
20090175619
2009-07-09

Burst power measurements using averaged power measurement

#109
20090129776
2009-05-21

WAVELENGTH-SELECTIVE SWITCH AND METHOD FOR CHANNEL-BY-CHANNEL SWITCHING FOR A WAVELENGTH-SELECTIVE SWITCH

#110
20080240716
2008-10-02

Beam position sensor for optical switch modules

#111
20080212157
2008-09-04

Optical switching system and control method for micro mirror

#112
20080170855
2008-07-17

Optical switch apparatus and optical switching system

#113
20080131119
2008-06-05

Lens adjusting method, lens adjusting device, and optical switch

#114
20080101743
2008-05-01

MWS drift feedback compensator using VOA and input power dithering

#115
20080089638
2008-04-17

Optical switch and method of controlling optical switch

#116
20080056720
2008-03-06

Method and system for power management control in passive optical networks

#117
20080050065
2008-02-28

Wavelength selective switch module

#118
20080050064
2008-02-28

MEMS optical switch device

#119
20070230954
2007-10-04

Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching

#120
20070223921
2007-09-27

Optical switch system

#121
20070223918
2007-09-27

Optical switching apparatus with optical reflection monitor and reflection monitoring system

#122
20070196107
2007-08-23

Optical switching device

#123
20070183777
2007-08-09

Optical switching device for a transparent node of high switching degree adapted to spectral equalization

#124
20070166034
2007-07-19

Method of automatic adjustment of dither amplitude of MEMS mirror arrays

#125
20070140691
2007-06-21

Passive optical network user terminal and method of power supply control and power supply state reporting for the same

#126
20070098403
2007-05-03

System and method for optical network demarcation

#127
20070047957
2007-03-01

Optical packet network system

#128
20070031105
2007-02-08

Wavelength power equalization by attenuation in an optical switch

#129
20070014510
2007-01-18

Optical network equipment and optical network

#130
20070009204
2007-01-11

Wavelength cross connect with per port performance characteristics

#131
20060222289
2006-10-05

Optical switch apparatus and control information updating method therein

#132
20060219870
2006-10-05

Optical switch apparatus and optical switching system

#133
20060132174
2006-06-22

Reconfigurable semitransparent optical switching device

#134
20060093258
2006-05-04

Optical switch

#135
20060093257
2006-05-04

Mirror, mirror unit, and optical switch

#136
20060072872
2006-04-06

Switches for changing optical path and selecting wavelength

#137
20060061855
2006-03-23

Optical node

#138
20060018591
2006-01-26

Method and system for controlling an optical switch using dynamic compensation

#139
20060013585
2006-01-19

Shared optical performance monitoring

#140
20050286891
2005-12-29

Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching

#141
20050276563
2005-12-15

Method and an improved device for controlling the power delivered at the output of a node of an optical network that switches bands of wavelengths

#142
20050254747
2005-11-17

Optical switch with adjustable optical loss

#143
20050191006
2005-09-01

Optical switching apparatus and optical switching method

#144
20050152637
2005-07-14

Wavelength power equalization by attenuation in an optical switch

#145
20050078957
2005-04-14

Optical network monitor

#146
20050031345
2005-02-10

Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks

#147
20050031255
2005-02-10

Method and system for maintaining active alignment in an optical switch using dedicated representative directing elements

#148
20050031251
2005-02-10

Method and system for aligning and maintaining alignment of an optical switch using sensors

#149
20050025411
2005-02-03

Optical switch and method of controlling optical switch

#150
20050018958
2005-01-27

Optical system for calibration and control of an optical fiber switch

#151
20050002386
2005-01-06

Signal repeater and switching device, method of detecting connecting relation between signal repeater and switching device and communication system

#152
15920769
2019-03-26

Reduced crosstalk photonic switch

#153
15876083
2018-08-28

Arrayed waveguide grating based multi-core and multi-wavelength short-range interconnection network

#154
15839309
2019-03-26

Planar photonic switch fabrics with reduced waveguide crossings