ClassID:

174077

G02B6/29389 - 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 characterised by the function or use of the complete device Bandpass filtering, e.g. 1x1 device rejecting or passing certain wavelengths

Recent Application in this class:
#1
20260078984
2026-03-19

MULTIPLE LINEAR ARRAY SEEKER

#2
20260029583
2026-01-29

METHOD AND SYSTEM FOR INTEGRATED PHOTONIC NOTCH FILTER

#3
20260016628
2026-01-15

DELIVERY FIBER ASSEMBLY AND A BROAD BAND SOURCE

#4
20260009950
2026-01-08

MULTI-RING RESONATOR SHARED BUS STRUCTURES FOR OPTICAL COMMUNICATIONS

#5
20250224567
2025-07-10

FILTERING UNIT, OPTICAL TRANSMITTER UNIT, OPTICAL RECEIVER UNIT AND OPTICAL TRANSCEIVER UNIT

#6
20240310582
2024-09-19

SYSTEM FOR INTEGRATED PHOTONIC NOTCH FILTER

#7
20240272363
2024-08-15

DOUBLE-LAYERED ANTISYMMETRIC TWO MODE BRAGG GRATINGS

#8
20240118496
2024-04-11

Wavelength-Stabilized Broadband Light Source

#9
20230384512
2023-11-30

DELIVERY FIBER ASSEMBLY AND A BROAD BAND SOURCE

#10
20230367074
2023-11-16

OPTICAL FIBER FILTER WITH ULTRA-WIDE TUNING RANGE

#11
20220357517
2022-11-10

Wavelength division multiplexing structure

#12
20220196916
2022-06-23

Optical fiber filter with ultra-wide tuning range

#13
20220131326
2022-04-28

Laser inspection system

#14
20210382230
2021-12-09

Delivery fiber assembly and a broad band source

#15
20210223102
2021-07-22

Spectrum shaping devices and techniques for optical characterization applications

#16
20210141159
2021-05-13

Tunable wavelength filtering device that is tuned by altering the angle of the optical beam that is incident on a filter

#17
20210080549
2021-03-18

High temperature and high dynamic bandwidth photonic sensor for gas flow rate, temperature, and pressure measurement

#18
20200341190
2020-10-29

Delivery fiber assembly and a broad band source

#19
20200284956
2020-09-10

Bandpass transmission filter and narrowband radiation source

#20
20200183089
2020-06-11

Microelectromechanically actuated deformable optical beam steering for wavelength tunable optical sources, filters, and detectors

#21
20200116940
2020-04-16

Optical notch filter system with independent control of coupled devices

#22
20190377222
2019-12-12

Liquid-crystal selectable bandpass filter

#23
20190204511
2019-07-04

PLASMONIC AND PHOTONIC WAVELENGTH SEPARATION FILTERS

#24
20190199057
2019-06-27

Narrow linewidth multi-wavelength light sources

#25
20190101703
2019-04-04

Fiber optic connector adapter with shutter having selective wavelength transparency

#26
20190064443
2019-02-28

Optical notch filter system with independent control of coupled devices

#27
20190064437
2019-02-28

Optical device with optical filters and processing method of optical signals

#28
20180348436
2018-12-06

Micromechanically actuated deformable optical beam steering for wavelength tunable optical sources, filters and detectors

#29
20180329143
2018-11-15

Polarization-based filter stabilization of broadband light sources

#30
20180314007
2018-11-01

Stabilized broadband light source apparatus and methods

#31
20180274980
2018-09-27

Bragg grating, and spectroscopy device including the Bragg grating

#32
20180188447
2018-07-05

Delivery fiber assembly and a broad band source

#33
20180143460
2018-05-24

Wavelength division multiplexed polarization independent reflective modulators

#34
20180136400
2018-05-17

Optical interference filter device, especially for an optical wavelength locking device

#35
20180062603
2018-03-01

Photonics based tunable multiband microwave filter

#36
20180027314
2018-01-25

Ultra high-speed photonics based radio frequency switching

#37
20170131475
2017-05-11

Infrared scene projector with per-pixel spectral and polarisation capability

#38
20170023738
2017-01-26

DISPLAY PANEL AND DRIVING METHOD THEREOF, AND DISPLAY DEVICE

#39
20160349456
2016-12-01

PLASMONIC AND PHOTONIC WAVELENGTH SEPARATION FILTERS

#40
20160266320
2016-09-15

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

#41
20160226218
2016-08-04

Tunable laser source

#42
20160116821
2016-04-28

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

#43
20160099545
2016-04-07

WAVELENGTH STABILIZATION AND LINEWIDTH NARROWING FOR SINGLE MODE AND MULTIMODE LASER DIODES

#44
20160011374
2016-01-14

Waveguide resonator component and method for the production thereof

#45
20150260919
2015-09-17

WAVELENGTH-DIVISION MULTIPLEXING AND DEMULTIPLEXING DEVICE

#46
20150168650
2015-06-18

THIN FILM FILTER (TFF) EMBEDDED WAVEGUIDE WDM DEVICE EMPLOYING PARABOLA-SHAPED WAVEGUIDES

#47
20150124251
2015-05-07

Resonator with reduced losses

#48
20140233883
2014-08-21

Resonator optimisation

#49
20130183030
2013-07-18

SYSTEM FOR TESTING OF OPTICAL NETWORK

#50
20130107356
2013-05-02

Terahertz band filter

#51
20130101254
2013-04-25

OPTICAL PERFORMANCE MONITORING SYSTEM

#52
20120213465
2012-08-23

Method for making polarization rotator and the polarization rotator made thereby

#53
20120189310
2012-07-26

Bandwidth adjustable bandpass filter

#54
20120050873
2012-03-01

WAVELENGTH TUNABLE OPTICAL FILTER AND REFLECTING ELEMENT FOR AN OPTICAL DEVICE

#55
20110235969
2011-09-29

Optical fiber-type optical filter

#56
20100296091
2010-11-25

Optical multiplexer/demultiplexer

#57
20100189405
2010-07-29

Optical Loss Device

#58
20100149650
2010-06-17

Optical device and lens assembly

#59
20100067851
2010-03-18

Filter device and manufacturing method thereof

#60
20090316159
2009-12-24

Slab waveguide spatial heterodyne spectrometer assembly

#61
20090303562
2009-12-10

High-resolution spectrally adjustable filter

#62
20090269009
2009-10-29

Lens assembly, optical device, optical axis adjusting method for an optical device

#63
20080145054
2008-06-19

OPTICAL MODULE WITH OPTICAL FILTER

#64
20080123104
2008-05-29

HIGH SELECTIVITY BAND-PASS INTERFEROMETER WITH TUNING CAPABILITIES

#65
20070154218
2007-07-05

Optical discriminators and systems and methods

#66
20070127867
2007-06-07

Glass package for optical device

#67
20070110366
2007-05-17

Collimator and optical filter device using the same

#68
20070077014
2007-04-05

Low loss spectrally periodic all-fiber filters

#69
20070071394
2007-03-29

Low loss microring resonator device

#70
20060285209
2006-12-21

Tunable-wavelength optical filter and method of manufacturing the same

#71
20060245691
2006-11-02

Optical filter assembly fabrication method

#72
20060158718
2006-07-20

Erbium-doped fiber amplifier and integrated module components

#73
20060140229
2006-06-29

Apparatus as tuning filter

#74
20060067613
2006-03-30

Wavelength division multiplexed (WDM) coupler and method for making the same

#75
20050280888
2005-12-22

Erbium-doped fiber amplifier and integrated circuit module components

#76
20050213870
2005-09-29

Fabry-perot sensing element based on a large-diameter optical waveguide

#77
20050191025
2005-09-01

Variable optical attenuator with tunable wavelength selectivity

#78
20050163423
2005-07-28

Optical filter assembly and method

#79
20050157989
2005-07-21

Optical package substrate, optical device, optical module, and method for molding optical package substrate

#80
20050157392
2005-07-21

Tunable-wavelength optical filter and method of manufacturing the same

#81
20050152699
2005-07-14

Dispersion compensating filters

#82
20050117201
2005-06-02

Wavelength division element and optical module

#83
20050100280
2005-05-12

Optical bandpass filter using long period gratings

#84
20050084205
2005-04-21

Wavelength division multiplexing system having built-in optical attenuator

#85
17306801
2023-06-13

Optical bandpass filter based on reflective devices

#86
16661321
2020-10-13

Dynamically optimized tunable filters for optical sensing systems

#87
16431583
2019-12-24

Ultra-small-pitch optical filter assembly

#88
15273394
2017-11-28

Shaping the bandpass spectrum of a tunable filter for optical network applications

#89
15139694
2017-08-01

Tunable optical filter with adjustable bandwidth

#90
14501493
2016-04-12

Photonic waveguide choke joint with non-absorptive loading

#91
13368127
2015-06-23

Passive thermo-optic feedback for robust athermal photonic systems