H04J14/002 - CPC Classification Index

#1

20260058750

2026-02-26

METHODS OF INJECTION LOCKING FOR MULTIPLE OPTICAL SOURCE GENERATION

#2

20250260501

2025-08-14

APPARATUS COMPRISING ANALOG MULTIPLEXERS AND METHOD FOR AN APPARATUS COMPRISING ANALOG MULTIPLEXERS

#3

20230308203

2023-09-28

Near-omnidirectional optical communication system

#4

20200044765

2020-02-06

Systems and methods for full duplex coherent optics

#5

20190393974

2019-12-26

Systems and methods for dual-band modulation and injection-locking for coherent PON

#6

20180294913

2018-10-11

Optical transport system employing direct-detection self-coherent receivers and compatible transmitters

#7

20180183542

2018-06-28

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

#8

20180145865

2018-05-24

Phase ambiguity processing method and device for quadrature amplitude modulation signal

#9

20160149661

2016-05-26

RF sub-band de-multiplexing for ultra-wide band optical digital coherent detection

#10

20150365174

2015-12-17

Robust coherent and self-coherent signal processing techniques

#11

20150229437

2015-08-13

Optimum signal constellation design and mapping for few-mode fiber based LDPC-coded CO-OFDM

#12

20150030330

2015-01-29

Optical transmitter, optical communication system, and optical communication method

#13

20140233964

2014-08-21

Method for generating an optimized return-to-zero pulse shape against aggressive optical filtering and an optical transmitter implementing the method

#14

20140064734

2014-03-06

WDM telecommunications link with coherent detection and optical frequency comb sources

#15

20140050477

2014-02-20

Method of optical data transmission using polarization division multiplexing

#16

20140043946

2014-02-13

Surface acoustic wave tag-based coherence multiplexing

#17

20130294777

2013-11-07

Reconfigurable optical transmitter

#18

20130216228

2013-08-22

Optical network unit, optical access network and a method for exchanging information

#19

20130177027

2013-07-11

Dual-polarization multi-wavelength coherent receiver frontend

#20

20130136451

2013-05-30

Optical transfer system, optical transmission device, and optical reception device

#21

20120301142

2012-11-29

Optical Superchannel Method and System

#22

20120294614

2012-11-22

Symmetric coherent OFDMA-PON configuration with low-speed ONU-side

#23

20120224855

2012-09-06

Digital phase conjugation for fiber-optic links

#24

20120189307

2012-07-26

Modulator with marking of polarization

#25

20120070149

2012-03-22

Coherent optical receiving apparatus and optical signal processing method

#26

20120063766

2012-03-15

Transmission device, control device, and method of detecting erroneous connection of signal line

#27

20120045173

2012-02-23

Coherent optical detector having a multifunctional waveguide grating

#28

20120008952

2012-01-12

Method and apparatus for carrier phase estimation and correction in a coherent optical system

#29

20110280581

2011-11-17

SYSTEMS AND METHODS FOR PRODUCING HIGH-POWER LASER BEAMS

#30

20110236015

2011-09-29

Method of switching optical path, and apparatus thereof

#31

20110222854

2011-09-15

COHERENT OPTICAL HUBBING

#32

20110103790

2011-05-05

Method and System for Compensating for Optical Impairment in an Optical Signal

#33

20110085624

2011-04-14

Coded polarization-multiplexed iterative polar modulation

#34

20110033184

2011-02-10

Side band pilot tone for digital signal processing in polarization multiplexed coherent optical communication system

#35

20100329683

2010-12-30

System, method and apparatus for coherent optical OFDM

#36

20100329670

2010-12-30

Receiver for optical transverse-mode-multiplexed signals

#37

20100239262

2010-09-23

Compensation of optical transmission impairments using digital backward propagation

#38

20100239261

2010-09-23

Electronic compensation of impairments using wavelet filters for backward propagation

#39

20100238452

2010-09-23

Dual Fiber Stretchers for Dispersion Compensation

#40

20100196009

2010-08-05

Polarization independent frequency domain equalization (FDE) for chromatic dispersion (CD) compensation in PolMux coherent systems

#41

20100142952

2010-06-10

Adaptive crossing frequency domain equalization (FDE) in digital PolMux coherent systems

#42

20090214210

2009-08-27

100 Gbit/s OFDM optical signal generation

#43

20090196619

2009-08-06

Systems and methods for optical carrier recovery

#44

20080198437

2008-08-21

CONVERTING OPTICAL INFORMATION ENCODING

#45

20070196109

2007-08-23

Secure optical communication system

#46

18426077

2025-11-04

Methods of injection locking for multiple optical source generation

#47

17957063

2024-12-31

Laser-shared coherent transceivers and methods

#48

17850620

2023-08-22

Radio frequency (RF) signal processor with photonic local oscillator (LO) phase control

#49

17825023

2023-09-12

Systems and methods for dual-band modulation and injection-locking for coherent PON

#50

17690760

2024-02-20

Methods of injection locking for multiple optical source generation

#51

17370592

2023-08-01

Systems and methods for full duplex coherent optics

#52

17216435

2022-05-31

Systems and methods for dual-band modulation and injection-locking for coherent PON

#53

16450878

2020-09-29

Efficient multi-channel coherent optical system

#54

13835027

2015-08-18

Low power low complexity chromatic dispersion compensation