ClassID:

174061

G02B6/29331 - 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 operating by evanescent wave coupling

Sub-classes:
Recent Application in this class:
#1
20260140306
2026-05-21

MANAGING EVANESCENT OPTICAL COUPLING IN PHOTONIC INTEGRATED CIRCUITS

#2
20260099007
2026-04-09

UNDERCUT-ASSISTED LONG RANGE EVANESCENT COUPLING BETWEEN WAVEGUIDES

#3
20250370190
2025-12-04

METHOD AND APPARATUS FOR THE RAPID CHARACTERIZATION OF PHOTONIC DEVICES USING EVANESCENT COUPLING VIA DIRECT LASER WRITTEN TAPERED POLYMER EVANESCENT COUPLERS

#4
20250216636
2025-07-03

OPTICAL BRIDGE FOR PHOTONIC INTERPOSER TO PHOTONIC INTERPOSER COMMUNICATIONS

#5
20250123443
2025-04-17

Large-aperture Flat Light Collector

#6
20250123441
2025-04-17

MANAGING EVANESCENT OPTICAL COUPLING IN PHOTONIC INTEGRATED CIRCUITS

#7
20240126010
2024-04-18

EVANESCENT COUPLERS AND RELATED METHODS

#8
20240069286
2024-02-29

Dual layer optical coupling configuration between photonic integrated circuit and external single mode optical fiber

#9
20240061280
2024-02-22

Broadband Controllable Optical Phase Shifters

#10
20230058824
2023-02-23

Optical phase shifter device

#11
20220283375
2022-09-08

Waveguide attenuator

#12
20220171131
2022-06-02

Assembly comprising first and second photonic chips that are adjoined to each other

#13
20220146740
2022-05-12

Slab waveguide and projector with intermodal coupling

#14
20220091473
2022-03-24

Optical signal processing apparatus

#15
20220003950
2022-01-06

Optical processing structure of optical fiber

#16
20220003931
2022-01-06

Waveguide attenuator

#17
20210356835
2021-11-18

Optical device

#18
20210333682
2021-10-28

Optical device

#19
20210231875
2021-07-29

Optical waveguide emitter with turning waveguide section

#20
20210026216
2021-01-28

Optical phase shifter device

#21
20210003775
2021-01-07

Optical apparatus and methods of manufacture thereof

#22
20200291343
2020-09-17

Optofluidic photobioreactor apparatus, method, and applications

#23
20200174195
2020-06-04

OPTICAL WAVEGUIDE STRUCTURE

#24
20190310420
2019-10-10

Wavelength selective transfer of optical energy

#25
20190265415
2019-08-29

Optical apparatus and methods of manufacture thereof

#26
20190235171
2019-08-01

Optical couplers for evanescent coupling of polymer clad fibers to optical waveguides using alignment features

#27
20190219886
2019-07-18

Optical device

#28
20190219885
2019-07-18

Optical device

#29
20190219884
2019-07-18

Optical device

#30
20190212627
2019-07-11

Optical device

#31
20190011803
2019-01-10

Optical solid-state beam steering using non-linear converter

#32
20180323869
2018-11-08

Detecting errors in optical messages

#33
20180180816
2018-06-28

Optical interconnect with high alignment tolerance

#34
20180059329
2018-03-01

Structure for coupling a photonic circuit to an external device

#35
20170315420
2017-11-02

Optical waveguide device

#36
20170315387
2017-11-02

Optical phase shifter device

#37
20170235056
2017-08-17

Phase shifting by mechanical movement

#38
20170227711
2017-08-10

Mode multiplexer/demultiplexer and switching node

#39
20170199327
2017-07-13

Wafer-scale fabrication of vertical optical couplers

#40
20170139142
2017-05-18

Photonic chip with an evanescent coupling interface

#41
20170123159
2017-05-04

ALIGNMENT SYSTEM FOR OPTICAL COUPLING ASSEMBLY

#42
20170058249
2017-03-02

Optofluidic photobioreactor apparatus, method, and applications

#43
20160377434
2016-12-29

Systems and methods for a time-based optical pickoff for MEMS sensors

#44
20160306131
2016-10-20

Optical connector

#45
20160266320
2016-09-15

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

#46
20160266311
2016-09-15

Bidirectional photonic integrated circuit with suppressed reflection

#47
20160238830
2016-08-18

Waveguides for enhanced total internal reflection fluorescence microscopy

#48
20160170147
2016-06-16

Optical coupler provided with a structuration

#49
20160161675
2016-06-09

Graphene photonics for resonator-enhanced electro-optic devices and all-optical interactions

#50
20160116821
2016-04-28

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

#51
20160085025
2016-03-24

Waveguide arrangements based on adiabatic elimination

#52
20150109661
2015-04-23

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

#53
20140369645
2014-12-18

Optical waveguide splitter on a waveguide substrate for attenuating a light source

#54
20130308897
2013-11-21

Optical waveguide splitter on a waveguide substrate for attenuating a light source

#55
20120308181
2012-12-06

Two-dimensional coupled resonator optical waveguide arrangements and systems, devices, and methods thereof

#56
20100189405
2010-07-29

Optical Loss Device

#57
15185420
2017-10-10

Waveguide system with inter-core coupler