ClassID:

231334

H04Q2011/0035 - CPC Classification

Classification description:

Selecting arrangements for multiplex systems using optical switching; Switch and router aspects; Construction using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical

Recent Application in this class:
#1
20260029596
2026-01-29

REDUNDANCY-BASED HIGH RELIABILITY OPTOELECTRONIC ARCHITECTURE AND METHODS OF MAKING AND USING THE SAME

#2
20250373962
2025-12-04

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

#3
20250286619
2025-09-11

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#4
20250274685
2025-08-28

MULTI-DEVICE OPTICAL SWITCH

#5
20250192881
2025-06-12

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#6
20250167882
2025-05-22

TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#7
20240381010
2024-11-14

Multi-core Asymmetric STar-Routing (MASTR) Switch and Method for Optical-Signal Routing

#8
20240361520
2024-10-31

PHOTONIC SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE

#9
20240329324
2024-10-03

LARGE SCALE STEERABLE COHERENT OPTICAL SWITCHED ARRAYS

#10
20240276127
2024-08-15

Multi-device wavelength selective switch

#11
20230400744
2023-12-14

RASTER MULTIPLEXING IN PHOTONIC CIRCUITS

#12
20230358860
2023-11-09

ANTENNA ARRAY CALIBRATION DEVICE AND METHOD

#13
20230152525
2023-05-18

Large scale steerable coherent optical switched arrays

#14
20230146495
2023-05-11

Large scale steerable coherent optical switched arrays

#15
20230092560
2023-03-23

Frequency division multiple access optical subcarriers

#16
20230061657
2023-03-02

Frequency division multiple access optical subcarriers

#17
20230006737
2023-01-05

Time division multiple access optical subcarriers

#18
20220382003
2022-12-01

Photonic Semiconductor Device and Method of Manufacture

#19
20220376781
2022-11-24

Frequency division multiple access optical subcarriers

#20
20220376780
2022-11-24

Frequency division multiple access optical subcarriers

#21
20220360870
2022-11-10

Wavelength selective switch WSS

#22
20220229239
2022-07-21

Optical device

#23
20220210527
2022-06-30

Multiport waveguide device

#24
20220123831
2022-04-21

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#25
20220004075
2022-01-06

Raster multiplexing in photonic circuits

#26
20220003937
2022-01-06

Large scale steerable coherent optical switched arrays

#27
20210263218
2021-08-26

Multiple wavelength band optical switching unit

#28
20210258662
2021-08-19

Optical switching unit

#29
20210218491
2021-07-15

Optical protection switch with broadcast multi-directional capability

#30
20210135758
2021-05-06

Phase-lock-free system and method for receiving multi-modulation-format compatible high-speed laser signal

#31
20210096311
2021-04-01

Photonic semiconductor device and method of manufacture

#32
20210092498
2021-03-25

Optical network device and method for monitoring transmission line

#33
20210058684
2021-02-25

Variable equalizer and method for controlling variable equalizer

#34
20200413169
2020-12-31

Frequency division multiple access optical subcarriers

#35
20200412475
2020-12-31

Optical add and drop multiplexer, optical communication system, and method for controlling optical add and drop multiplexer

#36
20200403704
2020-12-24

Frequency division multiple access optical subcarriers

#37
20200403702
2020-12-24

Frequency division multiple access optical subcarriers

#38
20200403701
2020-12-24

EQUALIZER DEVICE, COMMUNICATION SYSTEM, AND EQUALIZATION METHOD

#39
20200403700
2020-12-24

EQUALIZER DEVICE, COMMUNICATION SYSTEM, AND EQUALIZATION METHOD

#40
20200403697
2020-12-24

Optical antenna

#41
20200382216
2020-12-03

Frequency division multiple access optical subcarriers

#42
20200379185
2020-12-03

Large scale steerable coherent optical switched arrays

#43
20200371294
2020-11-26

Optical cross-connect

#44
20200287651
2020-09-10

Time division multiple access optical subcarriers

#45
20200287650
2020-09-10

Processing of multimode optical signals

#46
20200287649
2020-09-10

Code division multiple access optical subcarriers

#47
20200287648
2020-09-10

Code division multiple access optical subcarriers

#48
20200287621
2020-09-10

Time division multiple access optical subcarriers

#49
20200284989
2020-09-10

Apparatus, systems, and methods for nonblocking optical switching

#50
20200236447
2020-07-23

Node for an optical network

#51
20200204888
2020-06-25

TRANSMISSION METHOD AND SYSTEM FOR IMPROVED UNIDIRECTIONAL OR BIDIRECTIONAL DATA TRANSMISSION OVER TELECOMMUNICATION NETWORK, POLARIZATION ATTRACTOR CIRCUIT, COMPUTER PROGRAM AND COMPUTER PROGRAM PRODUCT

#52
20200169794
2020-05-28

Optical switching apparatus and methods

#53
20200145739
2020-05-07

Low-crosstalk electro-optical mach-zehnder switch

#54
20200083976
2020-03-12

Optical protection switch with broadcast multi-directional capability

#55
20200044738
2020-02-06

Systems and methods of dual-side array bi-directional CWDM micro-optics

#56
20190324214
2019-10-24

Large scale steerable coherent optical switched arrays

#57
20190253775
2019-08-15

Silicon-photonics-based optical switch with low polarization sensitivity

#58
20190235170
2019-08-01

Wavelength selective switch

#59
20190212499
2019-07-11

Optical circuits and optical switches

#60
20190103934
2019-04-04

Optical protection switch with broadcast multi-directional capability

#61
20190045283
2019-02-07

DC-COUPLED LASER DRIVER WITH AC-COUPLED TERMINATION ELEMENT

#62
20190044640
2019-02-07

Processing of multimode optical signals

#63
20190037287
2019-01-31

Low-crosstalk electro-optical Mach-Zehnder switch

#64
20180335574
2018-11-22

Apparatus, systems, and methods for nonblocking optical switching

#65
20180316419
2018-11-01

Integrated optical switching and splitting for troubleshooting in optical networks

#66
20180302698
2018-10-18

Low loss high speed optical switch

#67
20180279024
2018-09-27

Optical signal processing method and optical cross-connect apparatus

#68
20180267250
2018-09-20

Large scale steerable coherent optical switched arrays

#69
20180262268
2018-09-13

Built-in self test for loopback on communication system on chip

#70
20180219628
2018-08-02

High-frequency signal transmission/reception device

#71
20180191430
2018-07-05

Built-in self test for loopback on communication system on chip

#72
20180176666
2018-06-21

Feeder fiber and central office redundancy

#73
20180145650
2018-05-24

Split cascode circuits and related communication receiver architectures

#74
20180128984
2018-05-10

Wavelength selective switch, reconfigurable optical add/drop multiplexer, and wavelength selection method

#75
20180084318
2018-03-22

Low-crosstalk electro-optical Mach-Zehnder switch

#76
20180063609
2018-03-01

Optical signal amplification

#77
20180062743
2018-03-01

Extremely high frequency (EHF) distributed antenna systems, and related components and methods

#78
20180062742
2018-03-01

Bidirectional data communications cable

#79
20180052380
2018-02-22

Optical circuit, and optical switch using same

#80
20180045893
2018-02-15

INTEGRATED OPTICAL SWITCHING AND SPLITTING FOR OPTICAL NETWORKS

#81
20180020272
2018-01-18

Optical switch, an optical network node and an optical network

#82
20170366410
2017-12-21

Network node connection configuration

#83
20170346552
2017-11-30

Built-in self test for loopback on communication system on chip

#84
20170311059
2017-10-26

Distributed control of a modular switching system

#85
20170303016
2017-10-19

Node for an optical network

#86
20170289653
2017-10-05

OPTICAL SWITCHING UNIT AND OPTICAL SWITCHING DEVICE

#87
20170280212
2017-09-28

Telecommunications module

#88
20170272046
2017-09-21

Split cascode circuits and related communication receiver architectures

#89
20170264373
2017-09-14

Optical ising-model solver using quantum annealing

#90
20170237519
2017-08-17

External cavity FP laser

#91
20170230132
2017-08-10

Optical device and methods

#92
20170214482
2017-07-27

Polarization diverse wavelength selective switch

#93
20170195079
2017-07-06

OPTICAL TRANSCEIVER ASSEMBLY INCLUDING THERMAL DUAL ARRAYED WAVEGUIDE GRATING

#94
20170176687
2017-06-22

2×2 wavelength selective switch array

#95
20170163341
2017-06-08

Extremely high frequency (EHF) distributed antenna systems, and related components and methods

#96
20170142504
2017-05-18

Optical paired channel transceiver and system

#97
20170141843
2017-05-18

Built-in self test for loopback on communication system on chip

#98
20170127158
2017-05-04

Tunable optical module for optical communication

#99
20170127157
2017-05-04

High port count switching module, apparatus, and method

#100
20170118545
2017-04-27

Wavelength demultiplexer and wavelength multiplexer using same

#101
20170099531
2017-04-06

Free-space multicast switch with elliptical beams

#102
20170099529
2017-04-06

Low-crosstalk electro-optical Mach-Zehnder switch

#103
20170078042
2017-03-16

Method and apparatus for optical node construction using field programmable photonics

#104
20170064419
2017-03-02

Systems and methods of wavelength division multiplex passive optical networking

#105
20170055051
2017-02-23

Liquid crystal grating-based optical switch

#106
20160380838
2016-12-29

Network node connection configuration

#107
20160309244
2016-10-20

Optical signal control method and apparatus, and optical switch matrix control method and apparatus

#108
20160308640
2016-10-20

Bi-directional optical transmission system with coherent detection

#109
20160301473
2016-10-13

Bidirectional data communications cable

#110
20160261937
2016-09-08

Telecommunications module

#111
20160255425
2016-09-01

Optical link clock receiver

#112
20160252796
2016-09-01

High power optical switch

#113
20160234576
2016-08-11

Wavelength selective switch having multi-layer reflector

#114
20160234575
2016-08-11

Wavelength selective switch with increased frequency separation to avoid crosstalk

#115
20160212510
2016-07-21

Optical switching

#116
20160205451
2016-07-14

Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node

#117
20160204892
2016-07-14

Optical switch, optical add-drop multiplexer, communication network node and communication network

#118
20160195792
2016-07-07

Device and method for all-optical information exchange

#119
20160191196
2016-06-30

DC-coupled laser driver with AC-coupled termination element

#120
20160156998
2016-06-02

Distributed control of a modular switching system

#121
20160105736
2016-04-14

Systems and methods of wavelength division multiplex passive optical networking

#122
20160073181
2016-03-10

User modules and methods for connecting external communication networks

#123
20160072586
2016-03-10

Optical paired channel transceiver and system

#124
20160057517
2016-02-25

SIGNAL SWITCHING ARCHITECTURE

#125
20160007105
2016-01-07

Optical element and light receiving device

#126
20150382087
2015-12-31

Inter-channel spectral shaping in optical ring networks

#127
20150381302
2015-12-31

Telecommunications network node linking a metropolitan area network with at least one access network

#128
20150373431
2015-12-24

Split Spectrum Spectral Domain Optical Coherence Tomography

#129
20150358698
2015-12-10

Wavelength selective switch

#130
20150249576
2015-09-03

Systems and methods for physical link routing

#131
20150245114
2015-08-27

Optical networking unit (ONU) packaging

#132
20150244492
2015-08-27

Apparatus and manufacturing method for an integrated multicast switch, for use in reconfigurable optical add-drop networks

#133
20150215066
2015-07-30

Optical routing apparatus and method

#134
20150208143
2015-07-23

Polarization diverse wavelength selective switch

#135
20150185584
2015-07-02

High power optical switch

#136
20150180603
2015-06-25

Wavelength-selective cross-connect device having a variable number of common ports

#137
20150139642
2015-05-21

Wavelength selective switch and wavelength selection method

#138
20150131998
2015-05-14

Telecommunications module

#139
20150117859
2015-04-30

Systems and methods for physical link routing

#140
20150086203
2015-03-26

Method and apparatus for optical node construction using field programmable photonics

#141
20150078746
2015-03-19

Network node connection configuration

#142
20150063801
2015-03-05

Manufacturing method for a phase modulation system with ultraviolet discharge of accumulated charges

#143
20150037030
2015-02-05

Optical Switching Devices Including Phase Transition Materials

#144
20150023662
2015-01-22

Wavelength selective switch and method of manufacturing same

#145
20140363162
2014-12-11

Optical device and methods

#146
20140355979
2014-12-04

System and method for an optical coupler

#147
20140255022
2014-09-11

Optical network switching node in multi-chassis cluster, optical burst synchronization method, and line card chassis

#148
20140204330
2014-07-24

Pipelined pixel applications in liquid crystal on silicon chip

#149
20140204299
2014-07-24

Local buffers in a liquid crystal on silicon chip

#150
20140204298
2014-07-24

Pixel test in a liquid crystal on silicon chip

#151
20140178068
2014-06-26

Space switch device

#152
20140140696
2014-05-22

Bidirectional wavelength cross connect architectures using wavelength routing elements

#153
20140126905
2014-05-08

Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node

#154
20140119728
2014-05-01

Method and apparatus for implementing a multi-dimensional optical circuit switching fabric

#155
20140104560
2014-04-17

Wavelength selective switch including a liquid crystal on silicon

#156
20140002885
2014-01-02

System architecture for an optical switch using wavelength, fiber and polarizaton addressing

#157
20130235283
2013-09-12

Wavelength selective switch

#158
20130156429
2013-06-20

Optical-electrical switching node

#159
20130114957
2013-05-09

DUAL PATH WAVELENGTH SELECTIVE SWITCH

#160
20130010805
2013-01-10

High-capacity packet-switched ring network

#161
20120293856
2012-11-22

Optical delay device, optical circuit, and optical delay method

#162
20120251107
2012-10-04

WDM router

#163
20120099863
2012-04-26

Hybrid optical/electrical switching system for data center networks

#164
20120039601
2012-02-16

Use of polarization for differentiation of information

#165
20120033969
2012-02-09

Wavelength path multiplexing and demultiplexing optical transmission apparatus

#166
20110280568
2011-11-17

Techniques for detecting optical faults in passive optical networks

#167
20110268440
2011-11-03

Optical switching apparatus and method for an eNB

#168
20110234951
2011-09-29

Multi-pole optical signal switch

#169
20110069963
2011-03-24

Optoelectronic switches using on-chip optical waveguides

#170
20110033151
2011-02-10

Optical wavelength selective router

#171
20100278531
2010-11-04

Optical switch and optical signal communication system

#172
20100266283
2010-10-21

WDM PON WITH DISTRIBUTION VIA CYCLIC ARRAY WAVEGUIDE GRATING

#173
20100260501
2010-10-14

Bidirectional wavelength cross connect architectures using wavelength routing elements

#174
20100260500
2010-10-14

MULT9-DEGREE WAVELENGTH CROSS-CONNECT USING BIDIRECTIONAL WAVELENGTH SELECTIVE SWITCH

#175
20100183311
2010-07-22

High-degree reconfigurable optical add-drop multiplexing systems using bi-directional wavelength selective switches

#176
20100166419
2010-07-01

Techniques for protecting passive optical networks

#177
20100142942
2010-06-10

Apparatus for transferring optical data in optical switching system using time synchronization

#178
20100128734
2010-05-27

POLYPHASE ROTATING-ACCESS SWITCH

#179
20100040380
2010-02-18

Optical correlation apparatus

#180
20100008670
2010-01-14

WAVELENGTH SELECTIVE SWITCH USING PLANAR LIGHTWAVE CIRCUIT TECHNOLOGY

#181
20090262731
2009-10-22

Circulating switch

#182
20090195853
2009-08-06

High extinction ratio and low crosstalk compact optical switches

#183
20090129775
2009-05-21

Optical packet switching apparatus and methods

#184
20090103922
2009-04-23

TDM/WDMA passive optical network device

#185
20090074409
2009-03-19

High-capacity packet-switched network

#186
20090074005
2009-03-19

High-capacity packet-switched ring network

#187
20090060521
2009-03-05

Method, system and device for data transfer in an optical network

#188
20080316585
2008-12-25

Optical wavelength selective router

#189
20080193124
2008-08-14

Optical protection switch and method for optical protection switching

#190
20080166123
2008-07-10

Bidirectional wavelength cross connect architectures using wavelength routing elements

#191
20080151244
2008-06-26

Optical switching method and optical switch

#192
20080131138
2008-06-05

Optical switch and optical waveform monitoring apparatus

#193
20080131137
2008-06-05

Optical switch and optical switch control method

#194
20080124081
2008-05-29

PREDICTIVE SCHEDULING OF DATA PATH CONTROL

#195
20080124078
2008-05-29

Optical switch and optical crossconnect apparatus

#196
20080124077
2008-05-29

Optical burst transport using an electro-optic switch

#197
20080069566
2008-03-20

Wavelength superimposing device, manufacturing method therefor, and WDM network system

#198
20080063409
2008-03-13

Polarization envelope modulation for signaling and labeling in optical networks

#199
20080056715
2008-03-06

Optical transmission apparatus having OADM function

#200
20080037990
2008-02-14

Asymmetrical PON with multiple return channels

#201
20080019692
2008-01-24

Cross-connector for optical signals

#202
20070269211
2007-11-22

Multiple port symmetric reflective wavelength-selective mesh node

#203
20070230865
2007-10-04

Optical switches and actuators

#204
20070223918
2007-09-27

Optical switching apparatus with optical reflection monitor and reflection monitoring system

#205
20070196107
2007-08-23

Optical switching device

#206
20070110445
2007-05-17

Optical multiple transmission method, optical network and optical transmission apparatus

#207
20070098408
2007-05-03

Optical packet switching apparatus and methods

#208
20070086781
2007-04-19

Bidirectional wavelength cross connect architectures using wavelength routing elements

#209
20070086780
2007-04-19

Optical logic gate based optical router

#210
20070065153
2007-03-22

Optical line terminal in a wavelength division multiplexing passive optical network

#211
20060263088
2006-11-23

Optical packet switching apparatus and methods

#212
20060251417
2006-11-09

High-capacity packet-switched ring network

#213
20060245760
2006-11-02

Optical communication apparatus, optical communication information decoding method, optical switching system, and driving method for optical switching system

#214
20060239607
2006-10-26

Wavelength selector switch

#215
20060171715
2006-08-03

Optical network system and transmission apparatus

#216
20060165346
2006-07-27

Wavelength selective switch

#217
20060159454
2006-07-20

Use of polarization for differentiation of information

#218
20060153563
2006-07-13

Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch

#219
20060093358
2006-05-04

Optical packet communication system using labeling of wavelength-offset polarization-division multiplexing

#220
20060077552
2006-04-13

Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength

#221
20060056848
2006-03-16

Optical cross connect apparatus

#222
20060029392
2006-02-09

Method for providing high connectivity communications over a packet-switched optical ring network using composite packets

#223
20050259914
2005-11-24

Photonic switch working in momentum-division-multiple-access (mdma) mode for microwave and optical wavelengths based upon the measurement of the spin, the orbital angular momentum and the total angular momentum of the involved photo

#224
20050249456
2005-11-10

Optical cross-connect device

#225
20050249201
2005-11-10

Circulating switch

#226
20050226620
2005-10-13

Four-port wavelength-selective crossbar switches (4WCS) using reciprocal WDM mux-demux and optical circulator combination

#227
20050073749
2005-04-07

Wavelength selective switching device and method for selectively transmitting optical signals based on wavelength

#228
20050063056
2005-03-24

Polarization insensitive optical switching and routing systems and methods of manufacturing and operation

#229
20050047392
2005-03-03

Method and system for optical routing of variable-length packet data

#230
20050041911
2005-02-24

Optical space-switching matrix

#231
20050036202
2005-02-17

Wavelength selective optical switch

#232
18317983
2024-03-05

Method and system for co-packaged optics

#233
18158147
2024-12-10

Ultra-wideband wireless photonic integrated antenna system

#234
17336110
2023-01-24

Ultra-wideband wireless photonic integrated antenna system

#235
17175251
2022-05-03

Amplification module

#236
16372344
2020-05-19

Pluggable aggregation module for an optical network

#237
15986586
2019-07-30

Multiple wavelength selective switch with shared switch

#238
15933179
2019-10-15

Network base signal distribution system

#239
15093423
2017-08-08

Systems and methods for discovery of a controller in openflow networks

#240
14519836
2015-11-10

Signal quality in bi-directional optical links using optical circulators