ClassID:

223891

H04B10/504 - 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; Transmitters; Structural aspects; Laser transmitters using direct modulation

Recent Application in this class:
#1
20260149504
2026-05-28

Optical Communication System with a Simplified Remote Optical Power Supply

#2
20260121764
2026-04-30

ACTIVE CABLE INTERFACE WITH HYBRID DIRECT DRIVE AND RE-TIMER INTEGRATION

#3
20260121758
2026-04-30

RING MODULATOR BASELINE WANDER COMPENSATION

#4
20260121757
2026-04-30

REDUCTION OF WAVEGUIDE CROSSTALK WITH SUB-WAVELENGTH STRUCTURES

#5
20260086395
2026-03-26

MODULATOR, MODULATION SYSTEM, AND TRANSMISSION MODULE

#6
20260066994
2026-03-05

OPTICAL MODULE AND METHOD OF ADJUSTING OPTICAL POWER

#7
20260051717
2026-02-19

Multiple Electrode Distributed Feedback Laser Array

#8
20260036873
2026-02-05

COHERENT COMBINING PHOTOELECTRIC CONVERSION APPARATUS

#9
20250385738
2025-12-18

COMMUNICATION SYSTEMS AND METHODS

#10
20250350364
2025-11-13

INDEPENDENT CHANNEL CONTROL IN COHERENT OPTICS

#11
20250286625
2025-09-11

BEAMFORMING APPARATUS AND METHOD

#12
20250286619
2025-09-11

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#13
20250274197
2025-08-28

SYSTEMS AND METHODS FOR FREE SPACE OPTICAL INJECTION LOCKING

#14
20250247154
2025-07-31

METHOD AND APPARATUS FOR GENERATING OPTICAL MODULATION AMPLITUDE SIGNAL ACCORDING TO AVERAGE OUTPUT POWER CONTROL SETTING OF LASER DIODE AND ASSOCIATED METHOD

#15
20250219737
2025-07-03

OPTICAL FULL-FIELD TRANSMITTER

#16
20250202588
2025-06-19

Method And Apparatus For Ultra-Short Pulsed Laser Communication Through A Lossy Medium

#17
20250192881
2025-06-12

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#18
20250167882
2025-05-22

TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#19
20250141560
2025-05-01

PHOTOCURRENT SENSING FOR FEEDBACK CONTROL

#20
20250070881
2025-02-27

BI-DIRECTIONAL AND MULTI-CHANNEL OPTICAL MODULE WITH SINGLE CAVITY ACCOMMODATING BOTH OPTICAL TRANSMITTER AND RECEIVER ASSEMBLIES

#21
20250047388
2025-02-06

OPTICAL TRANSMITTER

#22
20250023643
2025-01-16

MULTI-MODULATION-FORMAT COMPATIBLE SPACE LASER COMMUNICATION METHOD AND SYSTEM BASED ON DIRECT MODULATION

#23
20240380491
2024-11-14

Optical Transmission System, Optical Transmission Method, Transmitter, and Receiver

#24
20240356652
2024-10-24

LIGHT SOURCE MULTIPLEXING FOR MODULATED OPTICAL COMMUNICATION

#25
20240333394
2024-10-03

HIGH PRECISION PHOTONIC READOUT AND PERFORMING HIGH PRECISION PHOTON SENSING

#26
20240313863
2024-09-19

Signal Processing System and Terminal Device

#27
20240283541
2024-08-22

Free-Space Optical Communications Link Using Direct Laser Modulation

#28
20240267126
2024-08-08

Motion Modulation to Communicate Information

#29
20240151918
2024-05-09

SUB-MOUNT, OPTICAL MODULATION MODULE, AND OPTICAL COMMUNICATION DEVICE

#30
20240120998
2024-04-11

Silicon optical chip with integrated antenna array

#31
20240039637
2024-02-01

SHUTDOWN CIRCUITRY FOR A LASER EMITTER

#32
20240014904
2024-01-11

Laser Module for Optical Data Communication System within Silicon Interposer

#33
20240014903
2024-01-11

DIRECT DIGITAL CHIRP SYNTHESIZER AND GENERATING A CHIRPED OPTICAL FREQUENCY COMB

#34
20230412275
2023-12-21

Method And Apparatus For Ultra-Short Pulsed Laser Communication Through A Lossy Medium

#35
20230396337
2023-12-07

Optical Transmission Systems, Receivers, and Devices, and Methods of Receiving Optical Signals and Designing Filters and Filtering Optical and Electrical Signals

#36
20230361879
2023-11-09

Communication systems and methods

#37
20230353248
2023-11-02

Network communications systems and methods

#38
20230353247
2023-11-02

FREQUENCY COMB POWER CONTROL APPARATUS FOR 4D BEAMFORMING, AND METHOD THEREFOR

#39
20230336247
2023-10-19

Optical communication systems and methods

#40
20230275671
2023-08-31

Optical Communication System with a Simplified Remote Optical Power Supply

#41
20230273371
2023-08-31

Optical Communication System with a Simplified Remote Optical Power Supply

#42
20230261439
2023-08-17

APPARATUS WITH NON-LINEAR FILTER

#43
20230246716
2023-08-03

FIBER COMMUNICATION SYSTEMS AND METHODS

#44
20230239053
2023-07-27

Apparatus and method for spatial light modulation

#45
20230144071
2023-05-11

Burstmode optical transmitter

#46
20230113709
2023-04-13

Transmitter circuit, optical module, and communications device

#47
20230092560
2023-03-23

Frequency division multiple access optical subcarriers

#48
20230080248
2023-03-16

Optical transmission device, system, and method

#49
20230061657
2023-03-02

Frequency division multiple access optical subcarriers

#50
20230046942
2023-02-16

Shutdown circuitry for a laser emitter

#51
20230006737
2023-01-05

Time division multiple access optical subcarriers

#52
20220407606
2022-12-22

Laser Module for Optical Data Communication System

#53
20220376781
2022-11-24

Frequency division multiple access optical subcarriers

#54
20220376780
2022-11-24

Frequency division multiple access optical subcarriers

#55
20220360343
2022-11-10

Power over fiber system

#56
20220360336
2022-11-10

Laser module for optical data communication system within silicon interposer

#57
20220352986
2022-11-03

Network communications systems and methods

#58
20220337320
2022-10-20

Systems and methods for optical full-field transmission using photonic integration

#59
20220337030
2022-10-20

DRIVE CIRCUIT FOR DIRECT MODULATED LASER, AND DIRECT MODULATED OPTICAL TRANSMITTER

#60
20220303017
2022-09-22

Apparatus and method of generating terahertz signal using directly-modulated laser

#61
20220278751
2022-09-01

Optical-time-division-multiplexed transmission system using sinusoidally modulated optical signal as input pulse source

#62
20220239377
2022-07-28

Optical communication systems and methods

#63
20220182149
2022-06-09

RING MODULATOR BASELINE WANDER COMPENSATION

#64
20220173812
2022-06-02

Frequency swept source apparatus

#65
20220158750
2022-05-19

Out-of-band communication channel for point-to-multi-point communications

#66
20220149594
2022-05-12

Device having non-linear filter

#67
20220123839
2022-04-21

Network communications systems and methods

#68
20220123831
2022-04-21

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

#69
20220085895
2022-03-17

Generation of optical pulses with controlled distributions of quadrature values

#70
20220021458
2022-01-20

Optical transmitter and a method for generating light pulses with variable intensity and variable phase without an optical modulator

#71
20220021455
2022-01-20

RADIO-FREQUENCY-OVER-FIBER TRANSMISSION METHOD USING DIRECTLY MODULATED LASER

#72
20220021174
2022-01-20

Systems and methods for control of waveform-agile laser transmitter

#73
20220013983
2022-01-13

VEHICLE DATA COMMUNICATION CABLE ASSEMBLY AND SYSTEM

#74
20220006533
2022-01-06

Active bias circuit

#75
20210409116
2021-12-30

Power-over-fiber system and method for operating a power-over-fiber system

#76
20210399807
2021-12-23

Methods and apparatus supporting non-persistent communications

#77
20210367676
2021-11-25

Fiber communication systems and methods

#78
20210351845
2021-11-11

Adjustable bidirectional transmission micro-optoelectronic system supporting online upgrade configuration

#79
20210336705
2021-10-28

Highly robust underwater optical communication system

#80
20210336703
2021-10-28

Fiber communication systems and methods

#81
20210242944
2021-08-05

Method and apparatus for ultra-short pulsed laser communication through a lossy medium

#82
20210226413
2021-07-22

Impedance matching circuit for optical transmitters and methods of making and using the same

#83
20210218473
2021-07-15

Optical module and optical transmitter

#84
20210210926
2021-07-08

Optical transmitter including a graded or sloped passband filter, and methods of making and using the same

#85
20210203129
2021-07-01

Burst mode laser driving circuit

#86
20210199512
2021-07-01

Single mode fiber distributed temperature sensing with improved noise characteristics

#87
20210194591
2021-06-24

Fiber communication systems and methods

#88
20210175975
2021-06-10

Mitigation of atmospheric scintillation for communication

#89
20210167859
2021-06-03

Fiber communication systems and methods

#90
20210167577
2021-06-03

Switching circuit for burst-mode tunable laser

#91
20210152250
2021-05-20

Network communications systems and methods

#92
20210151952
2021-05-20

Wavelength drift suppression for burst-mode tunable EML laser

#93
20210141282
2021-05-13

Mid-infrared wavelength optical transmitter and receiver

#94
20210111803
2021-04-15

Hub-leaf laser synchronization

#95
20210111802
2021-04-15

Hub-leaf laser synchronization

#96
20210111536
2021-04-15

Optical transmitter operating burst mode and control method of optical transmitter operating burst mode

#97
20210080742
2021-03-18

Control light intensity through scattering media with speckle intensity sequencing

#98
20210066878
2021-03-04

Method and apparatus for matching impedance of optical components using a tapered transmission line

#99
20210044086
2021-02-11

Non-linear filter for DML

#100
20210021340
2021-01-21

Method and apparatus for laser frequency control

#101
20200413169
2020-12-31

Frequency division multiple access optical subcarriers

#102
20200403704
2020-12-24

Frequency division multiple access optical subcarriers

#103
20200403703
2020-12-24

Laser module for optical data communication system

#104
20200403702
2020-12-24

Frequency division multiple access optical subcarriers

#105
20200382216
2020-12-03

Frequency division multiple access optical subcarriers

#106
20200382215
2020-12-03

Laser module for optical data communication system within silicon interposer

#107
20200366374
2020-11-19

Optical communication system

#108
20200350991
2020-11-05

OPTICAL SYSTEM HAVING A BIDIRECTIONAL INTERLEAVED OPTICAL LINK

#109
20200336211
2020-10-22

Systems and methods for optical full-field transmission using photonic integration

#110
20200328817
2020-10-15

Fiber communication systems and methods

#111
20200304209
2020-09-24

Transceiving With a Predetermined Frequency Spacing

#112
20200295837
2020-09-17

Fiber communication systems and methods

#113
20200295831
2020-09-17

Inter-mobile-body communication system, inter-mobile-body communication method, and program recording medium

#114
20200287651
2020-09-10

Time division multiple access optical subcarriers

#115
20200287649
2020-09-10

Code division multiple access optical subcarriers

#116
20200287648
2020-09-10

Code division multiple access optical subcarriers

#117
20200287621
2020-09-10

Time division multiple access optical subcarriers

#118
20200274620
2020-08-27

Mitigation of atmospheric scintillation for communication

#119
20200244368
2020-07-30

LOW-POWER FIBER OPTIC TRANSCEIVER

#120
20200244367
2020-07-30

Fiber communication systems and methods

#121
20200240605
2020-07-30

Illumination device for a motor vehicle

#122
20200228207
2020-07-16

Network communications systems and methods

#123
20200213010
2020-07-02

Optical transmitter operating burst mode and control method of optical transmitter operating burst mode

#124
20200195351
2020-06-18

Apparatus and method of generating broadband single-sideband signal based on laser diode

#125
20200194969
2020-06-18

Packaging of a directly modulated laser chip in photonics module

#126
20200176950
2020-06-04

Laser temperature compensation system and driving method thereof

#127
20200174514
2020-06-04

OPTICAL SIGNAL SKEW COMPENSATION

#128
20200145105
2020-05-07

HOST-EQUALIZED OPTICAL LINKS

#129
20200119813
2020-04-16

Fiber communication systems and methods

#130
20200076509
2020-03-05

Dual-rate DML device and module having built-in signal calibration circuit, and signal calibration method

#131
20200059301
2020-02-20

Pulse generation module, and optical communication transmitter system and non-linear equalizing method thereof

#132
20200044743
2020-02-06

Fiber communication systems and methods

#133
20200021081
2020-01-16

Optical module

#134
20190334625
2019-10-31

Band-multiplexed passive optical networks (PONs)

#135
20190326995
2019-10-24

Fiber communication systems and methods

#136
20190305856
2019-10-03

Conversion of RF signals to optical signals for passage through impairment mediums in a wireless communication network

#137
20190268074
2019-08-29

Fiber communication systems and methods

#138
20190245624
2019-08-08

Directly modulated laser drive circuit

#139
20190245623
2019-08-08

Network communications systems and methods

#140
20190245622
2019-08-08

Network communications systems and methods

#141
20190207679
2019-07-04

Free-space optical communication links with improved sensitivity

#142
20190190611
2019-06-20

Transmitter optical subassembly and optical module

#143
20190190609
2019-06-20

Optical Transceiver for Radio Frequency Communication

#144
20190149244
2019-05-16

Optical driver circuits

#145
20190149239
2019-05-16

Nonlinear tolerant super-Gaussian distribution for probabilistic shaping modulation

#146
20190109645
2019-04-11

Method of controlling optical transmitter operable for pulse-amplitude modulation signal

#147
20190089461
2019-03-21

Laser module for optical data communication system within silicon interposer

#148
20190058527
2019-02-21

Optical transmission apparatus and method

#149
20190052044
2019-02-14

Directly modulated laser having a variable light reflector

#150
20190045283
2019-02-07

DC-COUPLED LASER DRIVER WITH AC-COUPLED TERMINATION ELEMENT

#151
20190036609
2019-01-31

Multiplexer/demultiplexer and passive optical network system

#152
20190036307
2019-01-31

Optical module

#153
20180351325
2018-12-06

Driver circuit

#154
20180343063
2018-11-29

Driver circuit, optical module, and active optical cable

#155
20180337734
2018-11-22

OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT

#156
20180337732
2018-11-22

Driver circuit, optical transmission module and optical transmission device

#157
20180332372
2018-11-15

Optical Implementation of a Butler Matrix

#158
20180294886
2018-10-11

Method for generating reference currents in proportion to enable control of average power and extinction ratio of laser modulation in an optical transmitter

#159
20180267257
2018-09-20

Control device and method for controlling biasing of multiple light sources of multiple channels of a multi-channel optical communications module

#160
20180241498
2018-08-23

Optical fiber polarization multiplexing

#161
20180241175
2018-08-23

Drive circuit of light emitting element

#162
20180219631
2018-08-02

Optical communication apparatus and optical communication system

#163
20180159650
2018-06-07

Chirp managed laser generation for next generation passive optical networks

#164
20180159633
2018-06-07

Optical transmitter, active optical cable, and optical transmission method

#165
20180131444
2018-05-10

Fiber communication systems and methods

#166
20180131330
2018-05-10

Amplifier and optical transmitter using the same

#167
20180123699
2018-05-03

Optical sparse phased array receiver

#168
20180109073
2018-04-19

Light-emitting device and distance measurement device

#169
20180074273
2018-03-15

Optical communication module

#170
20180069635
2018-03-08

Method and optical transmitter device for creating an optical binary digital transmit signal

#171
20180062749
2018-03-01

Low-power fiber optic transceiver

#172
20180062343
2018-03-01

De-emphasis with separate edge control

#173
20180054258
2018-02-22

Frequency characteristic adjustment circuit, optical transmission module using the same, and optical transceiver

#174
20180054038
2018-02-22

SEMICONDUCTOR LASER APPARATUS

#175
20180019820
2018-01-18

Laser module for optical data communication system

#176
20180006728
2018-01-04

Optical transceiver, optical communication apparatus, and method of controlling light receiving element

#177
20170353247
2017-12-07

CONSTELLATION DESIGN FOR USE IN COMMUNICATION SYSTEMS

#178
20170317763
2017-11-02

Optical communication module

#179
20170294966
2017-10-12

Fiber communication systems and methods

#180
20170201328
2017-07-13

Method for optical and electrical signal processing of a multi-heterodyne signal generated by a multi-mode semi-conductor laser and detection device utilizing that method

#181
20170099108
2017-04-06

Optical transmitter and optical transmission method

#182
20170078026
2017-03-16

Mitigating inter-symbol interference in coded light

#183
20160329968
2016-11-10

Drive circuit and optical network unit

#184
20160315713
2016-10-27

Method and circuit to reduce power consumption of optical transmitter

#185
20160248518
2016-08-25

Current-mode driver with built-in continuous-time linear equalization

#186
20160248517
2016-08-25

Current-mode driver

#187
20160191196
2016-06-30

DC-coupled laser driver with AC-coupled termination element

#188
20160112139
2016-04-21

Optical signal processing apparatus, optical signal processing method, and recording medium

#189
20160094295
2016-03-31

Near-threshold optical transmitter pre-distortion

#190
20160087724
2016-03-24

Optical communication device and optical communication method

#191
20160065316
2016-03-03

Signal recovery circuit and signal recovery method

#192
20160056895
2016-02-25

Adaptive compensation circuitry for suppression of distortions generated by the dispersion-slope of optical components

#193
20160028490
2016-01-28

Directly modulated laser with dispersion compensation

#194
20160028482
2016-01-28

Hybrid laser anti-clipping for fiber-coaxial networks

#195
20150346432
2015-12-03

Optical communication module

#196
20150333477
2015-11-19

Method, system and apparatus for hybrid optical and electrical pumping of semiconductor lasers and LEDs for improved reliability at high temperatures

#197
20150318923
2015-11-05

Method and device for conveying optical data

#198
20150280830
2015-10-01

Optical signal conversion device and method thereof

#199
20150280400
2015-10-01

Directly modulated laser for PON application

#200
20150249504
2015-09-03

Optical transmitter

#201
20150207570
2015-07-23

Optical transmitter for transmitting a multilevel amplitude-shift-keying modulated signal

#202
20150132001
2015-05-14

Transmitter module outputting wavelength multiplexed light

#203
20150104190
2015-04-16

Optical transmission circuit, optical transmission device, and optical transmission system

#204
20150078758
2015-03-19

Large capacity optical transceiver module

#205
20150035566
2015-02-05

Drivers having T-coil structures

#206
20140356002
2014-12-04

Flattened optical frequency-locked multi-carrier generation by one DML and one phase modulator

#207
20140341571
2014-11-20

Optical transmitter

#208
20140270806
2014-09-18

Adaptive sampling qualification for extinction ratio control

#209
20140186056
2014-07-03

Closed loop optical modulation amplitude control

#210
20140186029
2014-07-03

Methods and devices for active optical cable calibration

#211
20140119395
2014-05-01

Laser driver modulation and bias control scheme

#212
20140117873
2014-05-01

Light emitting element drive circuit and light emitting device

#213
20140023379
2014-01-23

Reducing electrical current of a signal driver for an optical transmitter

#214
20130336659
2013-12-19

Multiplexed pulse modulation using superposition

#215
20130308959
2013-11-21

Directly modulated laser for PON applications

#216
20130308669
2013-11-21

Laser diode driver circuit

#217
20130308178
2013-11-21

Co-modulation of DBR laser and integrated optical amplifier

#218
20130223842
2013-08-29

Optical signal transmitting device, optical signal transmitting method, frequency fluctuation suppressing device and frequency fluctuation suppressing system

#219
20130195456
2013-08-01

Optical multiplexing using laser arrays

#220
20130188956
2013-07-25

Communication device and communication method

#221
20130163995
2013-06-27

Optical transmitter/receiver circuit device and receiver circuit

#222
20130142506
2013-06-06

Closed loop optical modulation amplitude control

#223
20130099767
2013-04-25

Drivers having T-coil structures

#224
20120327961
2012-12-27

Amplitude and phase modulation of a laser by modulation of an output coupler

#225
20120251098
2012-10-04

Method, apparatus and system for high-speed transmission on fiber optic channel

#226
20120235727
2012-09-20

Signal shaping circuit

#227
20120230685
2012-09-13

Transmitter and receiver for transceiving optical signals

#228
20120195601
2012-08-02

Optical transmitter with hybridly integrated driver

#229
20120194288
2012-08-02

Two-Terminal Modulator

#230
20120189321
2012-07-26

Dual Drive Externally Modulated Laser

#231
20120155856
2012-06-21

Optical transmission system

#232
20120141142
2012-06-07

Distortion compensation circuit including one or more phase invertible distortion paths

#233
20120134670
2012-05-31

TRANSMITTING DEVICE AND TRANSMITTING/RECEIVING DEVICE

#234
20120128359
2012-05-24

Method and system for bidirectional optical communication

#235
20120076161
2012-03-29

LONG DISTANCE TRANSMISSION USING MULTI-MODE VCSEL UNDER INJECTION LOCKING

#236
20120063788
2012-03-15

METHOD AND APPARATUS FOR TRANSMITTING OPTICAL SIGNALS

#237
20120057881
2012-03-08

Dispersion tolerant optical system and method

#238
20120045223
2012-02-23

Driver and optical transmission apparatus

#239
20120045218
2012-02-23

Driver and optical transmission apparatus

#240
20120045217
2012-02-23

Drive circuit, optical transmission apparatus, driving method, and optical transmission method

#241
20120027415
2012-02-02

Burst mode optical media converter with fast analog conversion

#242
20110236034
2011-09-29

Illumination device and method for embedding a data signal in a luminance output using AC driven light sources

#243
20110211846
2011-09-01

Transmitter Frequency Peaking for Optical Fiber Channels

#244
20110121742
2011-05-26

Circuit arrangement and method for controlling light emitting components

#245
20110002698
2011-01-06

High speed optical transmitter with directly modulated laser source

#246
20100303472
2010-12-02

APPARATUS AND METHOD FOR ADAPTIVELY CONTROLLING THE IMPULSE RESPONSE OF THE OPTICAL SIGNAL OUTPUT FROM A LASER OF AN OPTICAL TRANSMITTER (TX)

#247
20100303471
2010-12-02

Burst mode laser transmitter having an extremely fast response time when triggered from a totally off state

#248
20100290551
2010-11-18

METHOD, APPARATUS AND SYSTEM FOR HIGH-SPEED TRANSMISSION ON FIBER OPTIC CHANNEL

#249
20100232461
2010-09-16

Bias signal generation for a laser transmitter in a passive optical network

#250
20100215363
2010-08-26

Optical transmitter

#251
20100202775
2010-08-12

Method, apparatus and system for high-speed transmission on fiber optic channel

#252
20100183318
2010-07-22

Laser diode driver with back terminator and optical transmitter providing the same

#253
20100172650
2010-07-08

Directly modulated laser with integrated optical filter

#254
20100157417
2010-06-24

Optical-signal processing apparatus

#255
20100098436
2010-04-22

Method and apparatus for generating signals with increased dispersion tolerance using a directly modulated laser transmitter

#256
20100086309
2010-04-08

Reducing cross-modulation in multichannel modulated optical systems

#257
20100074619
2010-03-25

Laser source for a passive optical network

#258
20100040382
2010-02-18

Dispersion tolerant optical system and method

#259
20100028022
2010-02-04

Multi-level optical data communication circuit

#260
20100021183
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