G02B6/293 - CPC Classification Index

ClassID:

174055 ⎘

G02B6/293 - CPC Classification

Classification description:

Light guides; Coupling light guides; Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means

Sub-classes:

G02B6/29301 » {based on a phased array of light guides } 56
G02B6/29302 » {based on birefringence or polarisation, e.g. wavelength dependent birefringence, polarisation interferometers} 63
G02B6/29304 » {operating by diffraction, e.g. grating } 40
G02B6/29331 » {operating by evanescent wave coupling} 49
G02B6/29344 » {operating by modal interference or beating, i.e. of transverse modes, e.g. zero-gap directional coupler, MMI} 127
G02B6/29346 » {operating by wave or beam interference } 25
G02B6/29371 » {operating principle based on material dispersion} 4
G02B6/29379 » {characterised by the function or use of the complete device} 15

Recent Application in this class:

20260133385

2026-05-14

OPTICAL COMMUNICATION DEVICE

20260110861

2026-04-23

STRUCTURE FOR POLARIZATION-INDEPENDENT COARSE WAVELENGTH DIVISION DEMULTIPLEXING

20260074817

2026-03-12

BIDIRECTIONAL WAVELENGTH ACCESS SYSTEM

20250119215

2025-04-10

OPTICAL SIGNAL RELAY APPARATUS AND OPTICAL SIGNAL RELAY METHOD

20250076597

2025-03-06

Optical Communication Device

20250015918

2025-01-09

OPTICAL TRANSMISSION SYSTEM

20240056707

2024-02-15

OPTICAL SWITCHING APPARATUS, OPTICAL SWITCHING METHOD, OPTICAL SWITCHING NODE, AND SYSTEM

20230239066

2023-07-27

Optical transmission system and receiving device

20230168432

2023-06-01

WAVELENGTH MULTIPLEXER/DEMULTIPLEXER

#10

20230103702

2023-04-06

OPTICAL SCANNING ELEMENT

#11

20220411257

2022-12-29

MULTISENSOR MEMS AND/OR NEMS MEASUREMENT SYSTEM

#12

20220390680

2022-12-08

OPTICAL COMMUNICATION DEVICE

#13

20220373741

2022-11-24

Slope gain equalizer

#14

20220155528

2022-05-19

Optical cross apparatus

#15

20220026274

2022-01-27

A TUNABLE FILTER HAVING DIFFERENT GAPS

#16

20220013917

2022-01-13

CONTINUOUS RESONANCE TRAP REFRACTOR BASED ASSEMBLY

#17

20210399514

2021-12-23

OPTICAL AMPLIFICATION APPARATUS AND OPTICAL AMPLIFICATION METHOD

#18

20210263218

2021-08-26

Multiple wavelength band optical switching unit

#19

20210149132

2021-05-20

Light emitting assembly and optical module

#20

20210119702

2021-04-22

Single-fiber bidirectional optical transceiver subassembly

#21

20210080646

2021-03-18

Optical signal generating apparatus

#22

20200400885

2020-12-24

Optical spectrum shaper and optical signal monitor using same

#23

20200393988

2020-12-17

System and method for extending path length of a wave signal using angle multiplexing

#24

20200363589

2020-11-19

RING RESONATOR FILTER AND METHOD FOR DESIGNING SAME

#25

20200304212

2020-09-24

Wavelength de-multiplexing system and optical receiver module

#26

20200241210

2020-07-30

Pluggable miniature optical passive device

#27

20200218011

2020-07-09

Grating-coupled light guide, display system, and method employing optical concentration

#28

20200174188

2020-06-04

Polarization independent processing in integrated photonics

#29

20200153532

2020-05-14

High-density submarine ROADM unit with remote WSS redundancy

#30

20200116940

2020-04-16

Optical notch filter system with independent control of coupled devices

#31

20200052789

2020-02-13

Variable wavelength filter, and light receiver and light receiving method using variable wavelength filter

#32

20200050389

2020-02-13

System and method for extending path length of a wave signal using angle multiplexing

#33

20200003969

2020-01-02

OPTICAL BRANCH MODULE

#34

20190369334

2019-12-05

Optical transmission device and control method

#35

20190296850

2019-09-26

Polarization independent optical device

#36

20190190237

2019-06-20

OPTICAL FREE AIR BUS INTERCONNECT

#37

20190154920

2019-05-23

Polarization diverse distributed perturbation receivers

#38

20190109650

2019-04-11

Wavelength de-multiplexing system and optical receiver module

#39

20190101699

2019-04-04

Photonic interconnection switches and network integrated in an optoelectronic chip

#40

20190101375

2019-04-04

Confocal measurement device

#41

20190086774

2019-03-21

Corner-oriented high-definition pylon-mounted cameras

#42

20190072713

2019-03-07

Noise reduction collimator and imaging catheter system

#43

20190064443

2019-02-28

Optical notch filter system with independent control of coupled devices

#44

20190049641

2019-02-14

Transmittance-variable film

#45

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

#46

20180284345

2018-10-04

Photonic integrated circuit

#47

20180246277

2018-08-30

Wavelength selective switch

#48

20180212330

2018-07-26

Continuous resonance trap refractor based antenna

#49

20180196289

2018-07-12

Optical modulator having Mach-Zehnder diodes of reduced length

#50

20180128984

2018-05-10

Wavelength selective switch, reconfigurable optical add/drop multiplexer, and wavelength selection method

#51

20180091251

2018-03-29

Communication network employing network devices with packet delivery over pre-assigned optical channels

#52

20180067255

2018-03-08

High index-contrast photonic devices and applications thereof

#53

20180039163

2018-02-08

Corner-oriented high-definition pylon-mounted cameras

#54

20170357055

2017-12-14

Reduced pupil integrated optical system using precisely matched optical pathlengths

#55

20170351102

2017-12-07

Nano-scale conical traps based splitter, combiner, and reflector, and applications utilizing same

#56

20170299858

2017-10-19

Wavelength selective switch

#57

20170269304

2017-09-21

Multichannel optical transmitter and method of aligning components in the same

#58

20170245747

2017-08-31

Miniature multi-target optical imaging apparatus

#59

20170205578

2017-07-20

Polarization independent processing in integrated photonics

#60

20170038535

2017-02-09

Optical comb filter having first, second and third GT resonant cavities

#61

20170031100

2017-02-02

Multiwavelength optical sub-assembly module

#62

20170023848

2017-01-26

High-definition pylon-mounted camera assembly with mounting structure

#63

20160315729

2016-10-27

Optical transmission device that transmits wavelength division multiplexed optical signal and optical transmission system

#64

20160306201

2016-10-20

Differential ring modulator

#65

20160266320

2016-09-15

Optical reflector based on a directional coupler and a coupled optical loop

#66

20160238483

2016-08-18

OPTICAL FIBER CABLE MONITORING APPARATUS AND OPTICAL FIBER CABLE MONITORING METHOD USING DUAL LIGHT SOURCE

#67

20160164623

2016-06-09

Wavelength selective switch having integrated channel monitor

#68

20160164600

2016-06-09

Crosstalk suppression in a multi-photodetector optical channel monitor

#69

20160131843

2016-05-12

Multichannel optical transmitter and method of aligning components in the same

#70

20160116821

2016-04-28

Optical reflector based on a directional coupler and a coupled optical loop

#71

20150323743

2015-11-12

Single laser multi-frequency transmitter

#72

20150301275

2015-10-22

Nano-scale continuous resonance trap refractor based splitter, combiner, and reflector

#73

20150144805

2015-05-28

Optical coupler device and confocal observation system

#74

20150117823

2015-04-30

Fiber Connector Assembly

#75

20150109661

2015-04-23

Optical reflector based on a directional coupler and a coupled optical loop

#76

20150086156

2015-03-26

Reinforced multi-body optical devices

#77

20140233882

2014-08-21

Suppression of back reflection in a waveguide

#78

20140104560

2014-04-17

Wavelength selective switch including a liquid crystal on silicon

#79

20140064729

2014-03-06

Polarization diverse demultiplexing

#80

20140064656

2014-03-06

Polarization diverse demultiplexing

#81

20140003810

2014-01-02

RECONFIGURABLE OPTICAL NETWORKS

#82

20140003760

2014-01-02

Reconfigurable optical networks

#83

20130223794

2013-08-29

Methods and apparatus for constructing large wavelength selective switches using parallelism

#84

20120213474

2012-08-23

Fiber-based photonic microdevices with sub-wavelength scale variations in fiber radius

#85

20120120475

2012-05-17

Optically variable filter apparatus and filter characteristic control method thereof

#86

20110194810

2011-08-11

Reinforced multi-body optical devices

#87

20100166424

2010-07-01

Coolerless photonic integrated circuits (PICs) for WDM transmission networks and PICs operable with a floating signal channel grid changing with temperature but with fixed channel spacing in the floating grid

#88