ClassID:

223930

H04B10/6151 - 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; Receivers; Coherent receivers; Arrangements affecting the optical part of the receiver comprising a polarization controller at the receiver's input stage

Recent Application in this class:
#1
20260121744
2026-04-30

MEASUREMENT SYSTEM AND MEASUREMENT METHOD

#2
20260025204
2026-01-22

OPTICAL WIRELESS COMMUNICATION SYSTEM, OPTICAL WIRELESS COMMUNICATION APPARATUS AND OPTICAL WIRELESS COMMUNICATION METHOD

#3
20260012260
2026-01-08

OPTICAL REPEATER, OPTICAL NETWORK SYSTEM, AND OPTICAL REPEATING METHOD

#4
20250365070
2025-11-27

POLAR FILTERING COMMUNICATION SYSTEM AND METHOD THEREOF

#5
20240297720
2024-09-05

COHERENT OPTICAL RECEIVER

#6
20240291572
2024-08-29

APPARATUS AND METHOD FOR POLARIZATION CONTROL IN COHERENT OPTICAL RECEPTION SYSTEM

#7
20240259108
2024-08-01

NTEGRATED COHERENT RECEIVER HAVING A SINGLE MMI COUPLER OPTICAL HYBRID, NON-INTERSECTING OPTICAL PATHS AND UNIFORM ELECTRICAL PATHS

#8
20240097792
2024-03-21

Integrated self-coherent receiving optical chip based on round-trip delay interferometers

#9
20240007192
2024-01-04

Photonic Integrated Circuit for High-Wavelength-Channel-Count Wavelength-Division-Multiplexed Systems

#10
20230353251
2023-11-02

Photonic Integrated Circuit for High-Wavelength-Channel-Count Wavelength-Division-Multiplexed Systems

#11
20230283394
2023-09-07

PHOTONIC INTEGRATED CIRCUIT AND OPTO-ELECTRONIC SYSTEM COMPRISING THE SAME

#12
20230254048
2023-08-10

METHODS AND APPARATUS FOR HIGH-SPEED COHERENT OPTICAL INTERCONNECTS

#13
20230224068
2023-07-13

System, apparatus, and architecture for migrating an optical communication network

#14
20230216594
2023-07-06

COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD

#15
20230216587
2023-07-06

Radio Access Network using Radio Over Fibre

#16
20230155688
2023-05-18

Self-coherent optical transmission system and receiver

#17
20230095744
2023-03-30

Apparatus for polarization multiplexing and encoding in visible light communication system based on gold nanoparticle

#18
20220345224
2022-10-27

Coherent optical receiving apparatus and optical system that uses coherent optical receiving apparatus

#19
20220278766
2022-09-01

System, apparatus, and architecture for migrating an optical communication network

#20
20220231764
2022-07-21

Radio access network using radio over fibre

#21
20220166617
2022-05-26

Quantum secure clock synchronization based on time-energy and polarization entangled photon pairs

#22
20220146304
2022-05-12

Reduced complexity polarization combining method for coherent DAS

#23
20210405307
2021-12-30

Optical module

#24
20210376933
2021-12-02

Polarization independent optical receiver

#25
20210367679
2021-11-25

Coherent Optical Receiving Apparatus and Optical Signal Demodulation Apparatus

#26
20210336705
2021-10-28

Highly robust underwater optical communication system

#27
20210320723
2021-10-14

Coherent detection implementing apparatus, system and method

#28
20210218475
2021-07-15

Coherent optical receiver device and coherent optical receiving method

#29
20210203421
2021-07-01

Optical receiver and receiving method

#30
20210159983
2021-05-27

DSP-free ‘coherent lite’ transceiver for next generation 1 lambda x 400G 10km optical intra-datacenter interconnects

#31
20210135765
2021-05-06

Optical receiver, light signal receiving method, and data reproduction device

#32
20210105071
2021-04-08

Radio access network using radio over fibre

#33
20210013972
2021-01-14

Reflection-type coherent optical communication system combined with unidirectional optical signal amplification

#34
20200328818
2020-10-15

Systems and methods for analog electronic polarization control for coherent optical receivers

#35
20200313776
2020-10-01

Coherent optical receiver device and coherent optical receiving method

#36
20200204266
2020-06-25

Systems and methods for polarization control using blind source separation

#37
20200195354
2020-06-18

DSP-free coherent receiver

#38
20200084033
2020-03-12

Quantum secure clock synchronization based on time-energy and polarization entangled photon pairs

#39
20200014466
2020-01-09

Coherent optical receiver device and coherent optical receiving method

#40
20190379462
2019-12-12

Systems and methods for polarization control using blind source separation

#41
20190339468
2019-11-07

SPARE CHANNELS ON PHOTONIC INTEGRATED CIRCUITS AND IN PHOTONIC INTEGRATED CIRCUIT MODULES AND SYSTEMS

#42
20190327000
2019-10-24

Coherent receiver module

#43
20190229811
2019-07-25

Self-homodyne carrier multiplexed transmission system and method for coherent optical links

#44
20190181950
2019-06-13

Polarization tracking device, optical receiving device, and polarization tracking method

#45
20190097734
2019-03-28

Common mode rejection ratio measurement device for coherent optical receiver, and measurement method

#46
20190028206
2019-01-24

Quantum signal detection method and quantum signal detection apparatus

#47
20180375589
2018-12-27

POLARIZATION DEMULTIPLEXING OF OPTICAL SIGNALS

#48
20180302169
2018-10-18

Coherent optical receiver device and coherent optical receiving method

#49
20180241476
2018-08-23

Polarization analyzer based detection schemes for pol-mux self-coherent single sideband optical transmission

#50
20180234273
2018-08-16

Training sequences with enhanced IQ imbalance tolerances for training-aided frequency domain equalization

#51
20180123702
2018-05-03

Polarization insensitive self-homodyne detection receiver

#52
20180123701
2018-05-03

Amplitude adjustment circuit, digital coherent receiver, and amplitude adjustment method

#53
20180069638
2018-03-08

Self-coherent robust spectrally efficient optical transmission systems

#54
20180062757
2018-03-01

COHERENT RECEIVER

#55
20170237504
2017-08-17

Optical receiver and optical axis alignment method thereof

#56
20170048002
2017-02-16

System and method for optical receiver

#57
20170033873
2017-02-02

Polarization demultiplexing of optical signals

#58
20160344480
2016-11-24

Chip-based advanced modulation format transmitter

#59
20160261352
2016-09-08

Polarization state aligner (PSA)

#60
20160241352
2016-08-18

Optical transmission system

#61
20160072586
2016-03-10

Optical paired channel transceiver and system

#62
20160065314
2016-03-03

Self-coherent robust spectrally efficient optical transmission systems

#63
20150249507
2015-09-03

Coherent optical receiver device and coherent optical receiving method

#64
20150117872
2015-04-30

Polarization demultiplexing of optical signals

#65
20140376929
2014-12-25

Optical receiver and optical axis alignment method thereof

#66
20140356001
2014-12-04

Chip-based advanced modulation format transmitter

#67
20140348516
2014-11-27

Monolithic widely-tunable coherent receiver

#68
20140341564
2014-11-20

Method and system for common-mode-rejection-ratio (CMRR) characterization of an integrated coherent receiver

#69
20140270808
2014-09-18

Method and system for a polarization mode dispersion tolerant optical homodyne detection system with optimized transmission modulation

#70
20140193152
2014-07-10

Signal transmission method, signal receiving method, passive optical network PON device, and PON system

#71
20140140709
2014-05-22

APPARATUS AND METHOD FOR A FREQUENCY SPECIFIC ANTENNA AND RECEIVER

#72
20140079386
2014-03-20

Coherent optical receiver, apparatus and method for detecting interchannel skew in coherent optical receiver

#73
20130148985
2013-06-13

Monolithic widely-tunable coherent receiver

#74
20130051790
2013-02-28

Coherent optical receiver, apparatus and method for detecting interchannel skew in coherent optical receiver

#75
20130034354
2013-02-07

Polarization-multiplexed signal receiver, polarization multiplexing system and polarization-multiplexed signal receiving method

#76
20120128361
2012-05-24

Method and system for a polarization mode dispersion tolerant optical homodyne detection system with optimized transmission modulation

#77
20110249971
2011-10-13

Polarization fluctuation compensation device and optical communication system

#78
20110200339
2011-08-18

Optical receiver

#79
20110129230
2011-06-02

OPTICAL TRANSMISSION APPARATUSES, METHODS, AND SYSTEMS

#80
20100316393
2010-12-16

Method and apparatus for reception of optical signals

#81
20100303476
2010-12-02

Monolithic widely-tunable coherent receiver

#82
20100303469
2010-12-02

Chip-based advanced modulation format transmitter

#83
20100277790
2010-11-04

Electrically controlled optical oscillator for a single-side subcarrier optical phase-locked loop

#84
20100046957
2010-02-25

Method and system for a polarization mode dispersion tolerant optical homodyne detection system with optimized transmission modulation

#85
20090185810
2009-07-23

Single chip two-polarization quadrature synthesizer, analyser and optical communications system using the same

#86
20090047030
2009-02-19

Coherent light receiving system

#87
20070154221
2007-07-05

Frequency agile transmitter and receiver architecture for DWDM systems

#88
20050232640
2005-10-20

Method and apparatus for measuring frequency-resolved states of polarization of a working optical channel using polarization-scrambled heterodyning

#89
18370492
2024-01-30

Polarization independent DQPSK demodulation integrated optical chip

#90
18198315
2023-09-12

Self-coherent receiver based on single delay interferometer

#91
15688033
2018-06-05

Front end characterization of coherent receiver

#92
14985754
2017-08-29

Front end characterization of coherent receiver