ClassID:

224150

H04B2210/258 - CPC Classification

Classification description:

Indexing scheme relating to optical transmission systems; Distortion or dispersion compensation treating each wavelength or wavelength band separately

Recent Application in this class:
#1
20200116591
2020-04-16

OTDR method targeting identified event

#2
20190312641
2019-10-10

Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission method

#3
20120099867
2012-04-26

WAVELENGTH MULTIPLEXING OPTICAL COMMUNICATION DEVICE AND OPTICAL DISPERSION COMPENSATION METHOD

#4
20110318010
2011-12-29

DISPERSION SLOPE COMPENSATION METHOD AND APPARATUS

#5
20110064412
2011-03-17

Noise reduction in optical communications networks

#6
20110058820
2011-03-10

Optical transmission system, optical transmission equipment, and chromatic dispersion compensation method

#7
20100196010
2010-08-05

Optical transmission system

#8
20100158537
2010-06-24

Propagation apparatus and dispersion value setting method

#9
20100150562
2010-06-17

OPTICAL TRANSMISSION SYSTEM

#10
20100135664
2010-06-03

Chromatic dispersion compensating apparatus

#11
20100135663
2010-06-03

Repeater and repeating method

#12
20090251768
2009-10-08

Multi-band hybrid SOA-Raman amplifier for CWDM

#13
20090116840
2009-05-07

Wavelength division multiplex (WDM) optical demultiplexer

#14
20090080894
2009-03-26

Chromatic dispersion compensating apparatus

#15
20090080893
2009-03-26

Multi-band hybrid SOA-Raman amplifier for CWDM

#16
20090080890
2009-03-26

Optical repeater device and optical transmission system

#17
20080112044
2008-05-15

Multi-band hybrid SOA-raman amplifier for CWDM

#18
20080095537
2008-04-24

Optical transmission device

#19
20070280692
2007-12-06

Coherent gated receiver

#20
20070280688
2007-12-06

Upgradeable optical hub and hub upgrade

#21
20070274723
2007-11-29

Optical network and amplifier node therefore

#22
20070230960
2007-10-04

Multi-band hybrid SOA-raman amplifier for CWDM

#23
20070201878
2007-08-30

Repeater and repeating method

#24
20070189775
2007-08-16

Optical network element for compensating dispersion-related propagation effects

#25
20070183023
2007-08-09

Multiband amplifier based on discrete SOA-Raman amplifiers

#26
20070177634
2007-08-02

Methods and systems for avoiding transmission-channel disruptions

#27
20070127113
2007-06-07

Optical modulation apparatus

#28
20070086079
2007-04-19

Multi-band hybrid SOA-raman amplifier for CWDM

#29
20070047960
2007-03-01

Method and apparatus for controlling level of each signal included in wavelength-multiplexed signal

#30
20060291037
2006-12-28

Multi-band hybrid SOA-Raman amplifier for CWDM

#31
20060269284
2006-11-30

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

#32
20060245689
2006-11-02

Dispersion-compensating system

#33
20060238869
2006-10-26

Method and system for flexible and cost effective dynamic tilt gain equalizer

#34
20060222366
2006-10-05

Optical transmission apparatus

#35
20060221435
2006-10-05

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

#36
20060171716
2006-08-03

Multi-channel all-optical signal processor

#37
20060126159
2006-06-15

Parallel-structured Raman optical amplifier

#38
20060056012
2006-03-16

Optical amplifier apparatus and method

#39
20060024066
2006-02-02

Optical modulating device

#40
20060023298
2006-02-02

Amplification method and optical amplifier for wavelength division multiplexed signal light

#41
20060013583
2006-01-19

Optical transmission system

#42
20050226577
2005-10-13

Method and apparatus for producing a multiple optical channel source from a supercontinuum generator for WDM communication

#43
20050191061
2005-09-01

Optical communication method and apparatus

#44
20050179993
2005-08-18

Optical amplifier apparatus and method

#45
20050169630
2005-08-04

Dispersion slope equalizer

#46
20050158050
2005-07-21

Fiber-to-the-premise architectures

#47
20050117907
2005-06-02

Noise reduction in optical communications networks

#48
20050105851
2005-05-19

Methods and systems for chromatic dispersion compensation in switched grating WDM devices

#49
20050094253
2005-05-05

Method for gain equalization, and device and system for use in carrying out the method

#50
20050053377
2005-03-10

Reconfigurable multi-channel all-optical regenerators

#51
20050053324
2005-03-10

Modulator array architectures

#52
20050047799
2005-03-03

Method and apparatus to reduce second order distortion in optical communications

#53
15195983
2019-03-05

Optical power and chromatic dispersion equalization system