Patents-Review.com
ClassID:

223877 ⎘

H04B10/2941 - 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; Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form; Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter

Recent Application in this class:
#1
20260128794
2026-05-07

OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM

 #2
20260121750
2026-04-30

INTEGRATED TRANSCEIVER SYSTEMS AND METHODS

 #3
20250317208
2025-10-09

HOST DEVICE AND OPTICAL MODULE EQUALIZATION

 #4
20250309989
2025-10-02

TECHNOLOGIES FOR OPTICAL EQUALIZERS

 #5
20240258758
2024-08-01

OPTICAL SIGNAL AMPLIFICATION

 #6
20240178629
2024-05-30

GAIN EQUALIZATION IN C+L ERBIUM-DOPED FIBER AMPLIFIERS

 #7
20240048244
2024-02-08

DEVICE FOR GENERATING WIDE CAPTURE RANGE FREQUENCY TUNABLE OPTICAL MILLIMETER-WAVE SIGNAL

 #8
20230327772
2023-10-12

Tunable and polarization insensitive optical communication system

 #9
20230327768
2023-10-12

Wavelength division multiplexing device having wavelength division multiplexing filter

 #10
20230324617
2023-10-12

Turnable free space optical filters

 #11
20230291475
2023-09-14

GAIN AND TARGET AMPLITUDE TUNING IN A RECEIVER

 #12
20230161054
2023-05-25

RADIATION DETECTION SYSTEM

 #13
20230084074
2023-03-16

Filter, optical amplifier, communication system, filtering method, and optical amplification method

 #14
20220373741
2022-11-24

Slope gain equalizer

 #15
20220294171
2022-09-15

Optical Amplifier, Optical Signal Processing Method, and Storage Medium

 #16
20220231766
2022-07-21

Method and apparatus for optical power control

 #17
20220166520
2022-05-26

Performance estimation apparatus and method for nonlinear communication system and an electronic device

 #18
20220149944
2022-05-12

Gain equalization error management in optical communication systems

 #19
20220137300
2022-05-05

Power equalizer and adjustment method therefor

 #20
20210376550
2021-12-02

Gain equalization in C+L erbium-doped fiber amplifiers

 #21
20210126731
2021-04-29

Semiconductor optical amplifier with asymmetric Mach-Zehnder interferometers

 #22
20210006335
2021-01-07

Efficient multi-mode DFE

 #23
20200403701
2020-12-24

EQUALIZER DEVICE, COMMUNICATION SYSTEM, AND EQUALIZATION METHOD

 #24
20200403700
2020-12-24

EQUALIZER DEVICE, COMMUNICATION SYSTEM, AND EQUALIZATION METHOD

 #25
20200195349
2020-06-18

OPTICAL RELAY SYSTEM

 #26
20200067600
2020-02-27

High-speed receiver architecture

 #27
20200036446
2020-01-30

Optical transmission device and optical transmission system

 #28
20200014464
2020-01-09

Dynamic filter comprising a first and second metasurface for spectral sensing and emitting systems

 #29
20190215090
2019-07-11

Open, modular, and scalable optical line system

 #30
20190207683
2019-07-04

Phase noise compensation apparatus, demodulation apparatus, communication apparatus, communication system, and phase noise compensation method

 #31
20190058541
2019-02-21

Optical control device and optical branching device

 #32
20190036607
2019-01-31

Multi-band signal processing system, joint box for multi-band signal processing system, and method for accommodating multi-band signal processing system

 #33
20190020415
2019-01-17

High-speed receiver architecture

 #34
20180159630
2018-06-07

Electronical compensation of an interleaver transfer function for optical multiple carrier transmission

 #35
20180102850
2018-04-12

High-speed receiver architecture

 #36
20180027314
2018-01-25

Ultra high-speed photonics based radio frequency switching

 #37
20170366291
2017-12-21

Method and apparatus for optical node construction using software programmable ROADMs

 #38
20170279243
2017-09-28

Switchable-gain optical amplifier

 #39
20170214468
2017-07-27

High-speed receiver architecture

 #40
20170117967
2017-04-27

Method of equalizing an optical transmission signal

 #41
20170078042
2017-03-16

Method and apparatus for optical node construction using field programmable photonics

 #42
20150180196
2015-06-25

Switchable-gain optical amplifier

 #43
20150086203
2015-03-26

Method and apparatus for optical node construction using field programmable photonics

 #44
20130329277
2013-12-12

Optical amplifier and optical amplifier control method

 #45
20120321300
2012-12-20

Node equipment

 #46
20120188631
2012-07-26

Optical amplifier with feedback to obtain set gain and gain tilt

 #47
20120182602
2012-07-19

Optical fiber amplifier comprising an embedded filter and a control method with improved feedforward control performance

 #48
20120002270
2012-01-05

Optical transmission system

 #49
20110311236
2011-12-22

OPTICAL AMPLIFIER, CONTROL METHOD THEREFOR, AND OPTICAL TRANSMISSION SYSTEM

 #50
20110299153
2011-12-08

ARTICLE COMPRISING A MULTICHANNEL OPTICAL AMPLIFIED TRANSMISSION SYSTEM WITH FUNCTIONAL UPGRADE CAPABILITIES AND UNIVERSAL MODULES

 #51
20110274431
2011-11-10

Apparatus and method for controlling a dynamic gain equalizer

 #52
20110211842
2011-09-01

High-speed receiver architecture

 #53
20110199672
2011-08-18

Optical amplifier

 #54
20110164309
2011-07-07

Gain and signal level adjustments of cascaded optical amplifiers

 #55
20110063720
2011-03-17

Optical amplifiers using switched filter devices

 #56
20100272445
2010-10-28

Gain and signal level adjustments of cascaded optical amplifiers

 #57
20100221012
2010-09-02

Burst mode rare earth-doped fiber amplifier

 #58
20100158532
2010-06-24

WDM transmission apparatus, optical add-drop multiplexer and WDM transmission method

 #59
20100135662
2010-06-03

Method for the raman amplification of optical signals and transmission system

 #60
20100046065
2010-02-25

Tunable optical filter

 #61
20090154929
2009-06-18

Gain equalizer, optical amplifier, loss compensation method, and optical amplification method

 #62
20080074734
2008-03-27

System and method for gain equalization and optical communication system incorporating the same

 #63
20080074732
2008-03-27

Optical communication systems including optical amplifiers and amplification methods with flat noise figure profile

 #64
20080068701
2008-03-20

Article comprising a multichannel optical amplified transmission system with functional upgrade capabilities and universal modules

 #65
20070286559
2007-12-13

Gain flattening utilizing a two-stage erbium-based amplifier

 #66
20070264013
2007-11-15

Optical communication system

 #67
20070253664
2007-11-01

Integration of a gain equalization filter in a gain medium

 #68
20070115539
2007-05-24

Optical transmission system and optical filter assembly for submarine applications

 #69
20070115538
2007-05-24

Optical amplification unit with span loss tilt compensation, fiber optical transmission system comprising the same, and corresponding methods

 #70
20070081226
2007-04-12

Optical gain flattening components, optical chips and optical amplifiers and methods employing same

 #71
20070047067
2007-03-01

Optical amplifier having wide dynamic range

 #72
20070041084
2007-02-22

Optical amplifier using delayed phase matching fiber

 #73
20070014514
2007-01-18

Optical component

 #74
20070009263
2007-01-11

Optical amplifier

 #75
20060268394
2006-11-30

Gain-flattening apparatus and methods and optical amplifiers employing same

 #76
20060238869
2006-10-26

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

 #77
20060210272
2006-09-21

Optical transmission apparatus and optical transmission control method for wavelength-division-multiplexed optical signal

 #78
20060198017
2006-09-07

Gain and signal level adjustments of cascaded optical amplifiers

 #79
20060067695
2006-03-30

Method and apparatus for mitigating intersymbol interference from optical filtering

 #80
20060024063
2006-02-02

Optical amplifier and optical monitor circuit

 #81
20050286120
2005-12-29

Optical amplification of CWDM channels using optical amplifiers having fluoride-based optical fiber

 #82
20050270635
2005-12-08

Optical amplifier using reflection-type variable optical attenuator for feedback

 #83
20050248833
2005-11-10

Optical amplifiers

 #84
20050248832
2005-11-10

Gain-Flattening apparatus and methods and optical amplifiers employing same

 #85
20050219682
2005-10-06

Multistage optical amplifier having tilt compensation feature

 #86
20050206999
2005-09-22

Optical attenuator element, and variable optical equalizer and optical amplifier that use this optical attenuator element

 #87
20050179992
2005-08-18

Optical amplifier using delayed phase matching fiber

 #88
20050146782
2005-07-07

Optical amplifier

 #89
20050128591
2005-06-16

Optical component, optical device and optical communications system

 #90
20050128569
2005-06-16

Gain-providing optical power equalizer

 #91
20050111077
2005-05-26

Gain controller with selectable wavelength feedback

 #92
20050094253
2005-05-05

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

 #93
20050078357
2005-04-14

Optical amplifier and optical communication system including the same

 #94
20050031356
2005-02-10

Optical module

 #95
15987427
2021-01-12

Semiconductor optical amplifier with asymmetric Mach-Zehnder interferometers