← Capabilities
- International families
- 49k2015 to 2024
- Leading country
- Japan1.2× the next
- All families
- 138khome filings included
- Over five years
- Steady2020 to 2024 against the five before
Year by year
Patent families by country of origin and the year of the earliest filing, 2000 to 2025; 2025 is a part year, still filling in. International families are those for which protection was sought beyond one country.
Volume
International patent families in the capability, by the year of the earliest filing.
Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google
Share by country
Each country's share of the year's international families, in per cent: the capability's five largest countries of origin, 2015 to 2024, and the rest of the world.
Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google
Country leaderboard
International patent families, 2015 to 2024, by country of origin. Growth compares the latest five full years with the five before.
Ten largest
Japan
United States
China
Germany
South Korea
Taiwan
France
United Kingdom
Netherlands
Canada
13,338
11,398
9,204
2,973
2,316
2,123
1,356
1,009
779
570
| 2000 to 2025 | ||||||
|---|---|---|---|---|---|---|
| 1 | Japan | 13,338 | 27.0% | 1.0× | 20,552 | |
| 2 | United States | 11,398 | 23.0% | 0.9× | 19,128 | |
| 3 | China | 9,204 | 18.6% | 1.3× | 74,109 | |
| 4 | Germany | 2,973 | 6.0% | 1.0× | 3,867 | |
| 5 | South Korea | 2,316 | 4.7% | 0.8× | 6,675 | |
| 6 | Taiwan | 2,123 | 4.3% | 1.5× | 3,180 | |
| 7 | France | 1,356 | 2.7% | 0.9× | 1,619 | |
| 8 | United Kingdom | 1,009 | 2.0% | 1.0× | 1,231 | |
| 9 | Netherlands | 779 | 1.6% | 1.0× | 823 | |
| 10 | Canada | 570 | 1.2% | 1.2× | 787 | |
| 11 | Finland | 512 | 1.0% | 1.5× | 599 | |
| 12 | Israel | 471 | 1.0% | 1.1× | 703 | |
| 13 | Switzerland | 460 | 0.9% | 1.2× | 531 | |
| 14 | Singapore | 395 | 0.8% | 2.1× | 513 | |
| 15 | Sweden | 352 | 0.7% | 0.7× | 369 | |
| 16 | Italy | 292 | 0.6% | 0.7× | 354 | |
| 17 | Belgium | 279 | 0.6% | 0.5× | 286 | |
| 18 | India | 251 | 0.5% | 1.7× | 313 | |
| 19 | Austria | 176 | 0.4% | 0.9× | 189 | |
| 20 | Spain | 137 | 0.3% | 0.9× | 168 | |
| 21 | Australia | 136 | 0.3% | 0.9× | 152 | |
| 22 | Denmark | 96 | 0.2% | 1.6× | 106 | |
| 23 | Türkiye | 74 | 0.1% | 0.6× | 149 | |
| 24 | Ireland | 71 | 0.1% | 0.8× | 98 | |
| 25 | Brazil | 69 | 0.1% | 1.0× | 193 | |
| 26 | Cayman Islands | 69 | 0.1% | 0.2× | 122 | |
| 27 | Hong Kong | 54 | 0.1% | 0.9× | 103 | |
| 28 | Poland | 53 | 0.1% | 1.0× | 178 | |
| 29 | Saudi Arabia | 52 | 0.1% | 0.7× | 92 | |
| 30 | Luxembourg | 45 | 0.1% | 0.1× | 58 | |
| 31 | Czechia | 45 | 0.1% | 0.5× | 81 | |
| 32 | Russia | 43 | 0.1% | 0.7× | 437 | |
| 33 | Portugal | 34 | 0.1% | 4.7× | 39 | |
| 34 | Norway | 26 | 0.1% | 0.9× | 33 | |
| 35 | Liechtenstein | 18 | 0.0% | 0.8× | 22 | |
| 36 | South Africa | 12 | 0.0% | 0.7× | 12 | |
| 37 | Malaysia | 9 | 0.0% | 0.3× | 33 | |
| 38 | New Zealand | 7 | 0.0% | 1.3× | 10 | |
| 39 | Hungary | 7 | 0.0% | 1.3× | 10 | |
| 40 | Mexico | 5 | 0.0% | 1.5× | 27 |
Applicants
The largest applicants by international patent families, 2015 to 2024: across the world, then within each of the five countries with the most families in Advanced Optical Communication & Photonics. Names are as held in the source and are not consolidated across subsidiaries.
Global
49,475 international families
HUAWEI TECH CO LTD · China
NIPPON TELEGRAPH & TELEPHONE · Japan
SUMITOMO ELECTRIC INDUSTRIES · Japan
ZTE CORP · China
NEC CORP · Japan
FUJIKURA LTD · Japan
2,503
1,664
1,256
770
723
705
Japan
13,338 international families
NIPPON TELEGRAPH & TELEPHONE
SUMITOMO ELECTRIC INDUSTRIES
FUJIKURA LTD
MITSUBISHI ELECTRIC CORP
FUJITSU LTD
NEC CORP
1,663
1,255
704
696
654
647
United States
11,398 international families
COMMSCOPE TECHNOLOGIES LLC
CORNING RES & DEV CORP
CORNING INC
INTEL CORP
LUMENTUM OPERATIONS LLC
II VI DELAWARE INC
587
494
373
311
230
194
China
9,204 international families
HUAWEI TECH CO LTD
ZTE CORP
BOE TECHNOLOGY GROUP CO LTD
HISENSE BROADBAND MULTIMEDIA TECHNOLOGY CO LTD
ACCELINK TECH CO LTD
FIBERHOME TELECOMMUNICATION TECH CO LTD
2,406
770
450
379
193
142
Germany
2,973 international families
OSRAM OPTO SEMICONDUCTORS GMBH
AMS OSRAM INT GMBH
OSRAM OLED GMBH
FRAUNHOFER GES FORSCHUNG
BOSCH GMBH ROBERT
SCHOTT AG
415
320
137
134
133
90
South Korea
2,316 international families
SAMSUNG ELECTRONICS CO LTD
ELECTRONICS & TELECOMMUNICATIONS RES INST
SAMSUNG DISPLAY CO LTD
LG ELECTRONICS INC
LG DISPLAY CO LTD
LG INNOTEK CO LTD
470
254
175
140
92
92
Similar capabilities
The nine capabilities that share the most international patent families with Advanced Optical Communication & Photonics, 2015 to 2024: the families counted in both as a share of those counted in either. Each card shows its five largest countries.
Strategic Infrastructure
Core & Backbone Networks
15.2% shared · 19,923 families in both
United States
China
Japan
South Korea
Germany
26,336
26,166
15,255
6,683
4,804
Critical Technology
Advanced Imaging & Photonic Sensing
3.8% shared · 3,878 families in both
Japan
United States
China
South Korea
Germany
15,415
10,867
7,351
5,927
5,220
Critical Technology
Superconducting, Magnetic & Photonic Materials
2.3% shared · 1,397 families in both
Japan
United States
China
South Korea
Germany
4,778
2,134
1,575
1,414
897
Critical Technology
Human-Machine Interfaces
2.2% shared · 2,106 families in both
United States
Japan
China
South Korea
Germany
14,516
9,319
7,249
6,474
2,639
Critical Technology
Advanced Packaging & Heterogeneous Integration
1.8% shared · 2,328 families in both
Japan
South Korea
United States
Taiwan
China
24,716
15,416
12,420
11,991
9,796
Critical Technology
Directed Energy Technologies
1.4% shared · 726 families in both
United States
Japan
Germany
China
United Kingdom
479
386
232
150
99
Critical Technology
Quantum Communication
1.3% shared · 654 families in both
United States
China
Japan
South Korea
Germany
416
252
215
195
177
Strategic Infrastructure
Transmission & Distribution
1.2% shared · 949 families in both
Japan
United States
Germany
China
Switzerland
6,370
4,752
4,565
3,876
2,155
Critical Technology
Nanomaterials & Metamaterials
1.1% shared · 835 families in both
United States
South Korea
China
Japan
Taiwan
6,721
3,882
3,587
3,507
2,242
Crosswalk
How Advanced Optical Communication & Photonics is matched to the patent classifications. The entries below were chosen for it; each stands for itself and everything beneath it in the scheme, 1,499 Cooperative entries in all. A patent family counts when any of its codes, in either scheme and at any office, falls under one of them. Codes since retired are placed under the entries that replaced them.
| Entry | Title in the scheme | Why it is chosen | CPC codes | IPC codes | Documents |
|---|---|---|---|---|---|
| H04B10/00 | Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication | Optical transmission systems: fibre and free-space | 194 | 94 | 681,232 |
| H04J14/00 | Optical multiplex systems | Optical multiplexing, e.g. wavelength division | 98 | 6 | 174,445 |
| G02B6/00 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings | Optical fibres, waveguides, couplers and photonic integrated circuits | 710 | 52 | 1,704,334 |
| H04Q11/0001 | Selecting arrangements for multiplex systems using optical switching | Optical switching | 52 | 1 | 163,156 |
| H01S5/00 | Semiconductor lasers | Semiconductor lasers | 470 | 74 | 838,635 |
| H01S3/067 | Fibre lasers | Fibre lasers and fibre amplifiers | 24 | 2 | 69,993 |
| H04B10/70 | Photonic quantum communication | Left out | |||
| G02B6/0001 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems | Left out |
CPC and IPC codes are the codes in use on patent documents, at any office, that fall under the entry. Documents is the larger of the two schemes' counts of documents carrying one of them. An entry with no IPC codes can be told apart only in the Cooperative scheme.
The Cooperative codes in use that count towards Advanced Optical Communication & Photonics: 1,548 codes on 3,449,531 documents. The 150 most used are listed; the full list is in the cpc-to-capability.csv download.
| Code | Title | Under entry | How placed | Documents |
|---|---|---|---|---|
| G02B6/4214 | Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device | G02B6/00 | In the scheme | 22,300 |
| G02B6/00 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings | G02B6/00 | In the scheme | 22,053 |
| H04B10/40 | Transceivers | H04B10/00 | In the scheme | 21,646 |
| G02B6/4246 | Bidirectionally operating package structures | G02B6/00 | In the scheme | 19,821 |
| H04Q11/0067 | Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring | H04Q11/0001 | In the scheme | 19,300 |
| G02B6/4292 | Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements | G02B6/00 | In the scheme | 19,144 |
| H04Q11/0005 | Switch and router aspects | H04Q11/0001 | In the scheme | 18,611 |
| G02B6/32 | Optical coupling means having lens focusing means positioned between opposed fibre ends | G02B6/00 | In the scheme | 17,231 |
| H04B10/116 | Visible light communication | H04B10/00 | In the scheme | 17,224 |
| H04B10/25 | Arrangements specific to fibre transmission | H04B10/00 | In the scheme | 17,063 |
| G02B6/3825 | Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs | G02B6/00 | In the scheme | 17,019 |
| G02B6/42 | Coupling light guides with opto-electronic elements | G02B6/00 | In the scheme | 16,690 |
| G02B6/43 | Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections | G02B6/00 | In the scheme | 16,583 |
| G02B6/3885 | Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type | G02B6/00 | In the scheme | 16,370 |
| G02B6/4204 | Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms | G02B6/00 | In the scheme | 15,633 |
| G02B6/12004 | Combinations of two or more optical elements | G02B6/00 | In the scheme | 15,575 |
| H04Q11/0062 | Network aspects | H04Q11/0001 | In the scheme | 15,508 |
| G02B6/122 | Basic optical elements, e.g. light-guiding paths | G02B6/00 | In the scheme | 15,443 |
| H01S3/06754 | Fibre amplifiers | H01S3/067 | In the scheme | 14,976 |
| G02B6/4206 | Optical features | G02B6/00 | In the scheme | 14,400 |
| G02B6/3897 | Connectors fixed to housings, casing, frames or circuit boards | G02B6/00 | In the scheme | 13,169 |
| G02B6/4249 | Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres | G02B6/00 | In the scheme | 12,635 |
| G02B6/3893 | Push-pull type, e.g. snap-in, push-on | G02B6/00 | In the scheme | 12,483 |
| G02B6/12 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind | G02B6/00 | In the scheme | 12,387 |
| H01S5/026 | Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers | H01S5/00 | In the scheme | 12,317 |
| G02B6/30 | Optical coupling means for use between fibre and thin-film device | G02B6/00 | In the scheme | 12,285 |
| G02B6/34 | Optical coupling means utilising prism or grating | G02B6/00 | In the scheme | 12,132 |
| H04B10/27 | Arrangements for networking | H04B10/00 | In the scheme | 12,080 |
| G02B6/12007 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer | G02B6/00 | In the scheme | 12,077 |
| G02B6/262 | Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements | G02B6/00 | In the scheme | 12,077 |
| H01S5/22 | Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure | H01S5/00 | In the scheme | 12,001 |
| G02B6/125 | Bends, branchings or intersections | G02B6/00 | In the scheme | 11,564 |
| G02B6/02 | Optical fibres with cladding with or without a coating | G02B6/00 | In the scheme | 11,521 |
| H01S5/183 | Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] | H01S5/00 | In the scheme | 11,457 |
| G02B6/44528 | Patch-cords; Connector arrangements in the system or in the box | G02B6/00 | In the scheme | 11,374 |
| H04J14/0227 | Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation | H04J14/00 | In the scheme | 11,358 |
| G02B6/124 | Geodesic lenses or integrated gratings | G02B6/00 | In the scheme | 10,922 |
| H01S5/4025 | Array arrangements, e.g. constituted by discrete laser diodes or laser bar | H01S5/00 | In the scheme | 10,798 |
| H01S5/423 | Arrays of surface emitting lasers having a vertical cavity | H01S5/00 | In the scheme | 10,502 |
| H01S5/34333 | Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer based on Ga(In)N or Ga(In)P, e.g. blue laser | H01S5/00 | In the scheme | 10,484 |
| H04B10/516 | Details of coding or modulation | H04B10/00 | In the scheme | 10,399 |
| H01S5/005 | Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping | H01S5/00 | In the scheme | 10,394 |
| H01S5/02251 | Out-coupling of light using optical fibres | H01S5/00 | In the scheme | 10,375 |
| H04B10/503 | Laser transmitters | H04B10/00 | In the scheme | 10,276 |
| G02B6/13 | Integrated optical circuits characterised by the manufacturing method | G02B6/00 | In the scheme | 10,275 |
| G02B6/136 | Integrated optical circuits characterised by the manufacturing method by etching | G02B6/00 | In the scheme | 10,197 |
| H01S5/0683 | Stabilisation of laser output parameters by monitoring the optical output parameters | H01S5/00 | In the scheme | 9,957 |
| H04B10/60 | Receivers | H04B10/00 | In the scheme | 9,928 |
| H01S5/141 | External cavity lasers using a wavelength selective device, e.g. a grating or etalon | H01S5/00 | In the scheme | 9,666 |
| G02B6/428 | Electrical aspects containing printed circuit boards [PCB] | G02B6/00 | In the scheme | 9,581 |
| G02B6/443 | Protective covering | G02B6/00 | In the scheme | 9,571 |
| G02B6/1228 | Tapered waveguides, e.g. integrated spot-size transformers | G02B6/00 | In the scheme | 9,525 |
| H04J14/02 | Wavelength-division multiplex systems | H04J14/00 | In the scheme | 9,517 |
| G02B6/3821 | Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means | G02B6/00 | In the scheme | 9,350 |
| H01S5/02325 | Mechanically integrated components on mount members or optical micro-benches | H01S5/00 | In the scheme | 9,289 |
| H01S5/4012 | Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms | H01S5/00 | In the scheme | 9,280 |
| H04B10/50 | Transmitters | H04B10/00 | In the scheme | 9,203 |
| H01S5/02345 | Wire-bonding | H01S5/00 | In the scheme | 9,142 |
| H01S5/4087 | Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength | H01S5/00 | In the scheme | 9,025 |
| H01S5/042 | Electrical excitation ; Circuits therefor | H01S5/00 | In the scheme | 8,973 |
| H04B10/11 | Arrangements specific to free-space transmission, i.e. transmission through air or vacuum | H04B10/00 | In the scheme | 8,963 |
| G02B6/4201 | Packages, e.g. shape, construction, internal or external details | G02B6/00 | In the scheme | 8,879 |
| H04B10/07955 | Monitoring or measuring power | H04B10/00 | In the scheme | 8,809 |
| G02B6/02042 | Multicore optical fibres | G02B6/00 | In the scheme | 8,749 |
| G02B6/3849 | Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes | G02B6/00 | In the scheme | 8,712 |
| G02B6/1225 | Basic optical elements, e.g. light-guiding paths comprising photonic band-gap structures or photonic lattices | G02B6/00 | In the scheme | 8,711 |
| H01S5/4031 | Edge-emitting structures | H01S5/00 | In the scheme | 8,667 |
| G02B6/10 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type | G02B6/00 | In the scheme | 8,641 |
| G02B6/3869 | Mounting ferrules to connector body, i.e. plugs | G02B6/00 | In the scheme | 8,573 |
| G02B6/4296 | Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources | G02B6/00 | In the scheme | 8,400 |
| G02B6/4298 | Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers | G02B6/00 | In the scheme | 8,330 |
| H01S5/32341 | Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP | H01S5/00 | In the scheme | 8,257 |
| H04J14/0282 | WDM tree architectures | H04J14/00 | In the scheme | 8,050 |
| G02B6/44 | Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables | G02B6/00 | In the scheme | 7,879 |
| H01S5/12 | Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers | H01S5/00 | In the scheme | 7,873 |
| G02B6/02395 | Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture | G02B6/00 | In the scheme | 7,831 |
| H01S5/04256 | Electrodes, e.g. characterised by the structure characterised by the configuration | H01S5/00 | In the scheme | 7,770 |
| G02B6/14 | Mode converters | G02B6/00 | In the scheme | 7,761 |
| G02B6/423 | Passive alignment, i.e. without a detection of the degree of coupling or the position of the elements using guiding surfaces for the alignment | G02B6/00 | In the scheme | 7,718 |
| H04B10/071 | Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR] | H04B10/00 | In the scheme | 7,691 |
| G02B6/3888 | Protection from over-extension or over-compression | G02B6/00 | In the scheme | 7,645 |
| G02B6/2938 | 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 for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM | G02B6/00 | In the scheme | 7,489 |
| H01S3/067 | Fibre lasers | H01S3/067 | In the scheme | 7,428 |
| G02B6/3636 | Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves | G02B6/00 | In the scheme | 7,361 |
| H04B10/0795 | Performance monitoring; Measurement of transmission parameters | H04B10/00 | In the scheme | 7,357 |
| G02B6/2551 | Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch | G02B6/00 | In the scheme | 7,307 |
| G02B6/4403 | Optical cables with ribbon structure | G02B6/00 | In the scheme | 7,297 |
| H04Q2011/0086 | Network resource allocation, dimensioning or optimisation | H04Q11/0001 | In the scheme | 7,271 |
| G02B2006/12061 | Silicon | G02B6/00 | In the scheme | 7,204 |
| G02B6/4215 | Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers | G02B6/00 | In the scheme | 7,157 |
| G02B6/25 | Preparing the ends of light guides for coupling, e.g. cutting | G02B6/00 | In the scheme | 7,111 |
| H04Q11/0066 | Provisions for optical burst or packet networks | H04Q11/0001 | In the scheme | 7,076 |
| H01S5/0687 | Stabilising the frequency of the laser | H01S5/00 | In the scheme | 7,069 |
| H01S5/02469 | Passive cooling, e.g. where heat is removed by the housing as a whole or by a heat pipe without any active cooling element like a TEC | H01S5/00 | In the scheme | 6,969 |
| G02B6/44384 | Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials | G02B6/00 | In the scheme | 6,958 |
| H01S5/0237 | Fixing laser chips on mounts by soldering | H01S5/00 | In the scheme | 6,921 |
| H01S5/02253 | Out-coupling of light using lenses | H01S5/00 | In the scheme | 6,914 |
| G02B6/26 | Optical coupling means | G02B6/00 | In the scheme | 6,846 |
| G02B6/4457 | Bobbins; Reels | G02B6/00 | In the scheme | 6,763 |
| H04B10/272 | Star-type networks or tree-type networks | H04B10/00 | In the scheme | 6,758 |
| H04B10/07 | Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems | H04B10/00 | In the scheme | 6,754 |
| H01S3/0675 | Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers | H01S3/067 | In the scheme | 6,615 |
| G02B6/44526 | Panels or rackmounts covering a whole width of the frame or rack | G02B6/00 | In the scheme | 6,590 |
| H04Q2011/0081 | Fault tolerance; Redundancy; Recovery; Reconfigurability | H04Q11/0001 | In the scheme | 6,558 |
| H04Q2011/0079 | Operation or maintenance aspects | H04Q11/0001 | In the scheme | 6,532 |
| H01S5/50 | Amplifier structures not provided for in groups H01S5/02 - H01S5/30 | H01S5/00 | In the scheme | 6,522 |
| H04B10/506 | Multiwavelength transmitters | H04B10/00 | In the scheme | 6,517 |
| G02B6/3652 | Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being prepositioning mounting areas, allowing only movement in one dimension, e.g. grooves, trenches or vias in the microbench surface, i.e. self aligning supporting carriers | G02B6/00 | In the scheme | 6,439 |
| H01S5/04254 | Electrodes, e.g. characterised by the structure characterised by the shape | H01S5/00 | In the scheme | 6,414 |
| H04Q2011/0064 | Arbitration, scheduling or medium access control aspects | H04Q11/0001 | In the scheme | 6,348 |
| H04B10/2581 | Multimode transmission | H04B10/00 | In the scheme | 6,313 |
| G02B6/4432 | Protective covering with fibre reinforcements | G02B6/00 | In the scheme | 6,310 |
| G02B6/06 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images | G02B6/00 | In the scheme | 6,302 |
| G02B6/04 | Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres | G02B6/00 | In the scheme | 6,292 |
| H04B10/564 | Power control | H04B10/00 | In the scheme | 6,275 |
| H01S5/028 | Coatings ; Treatment of the laser facets, e.g. etching, passivation layers or reflecting layers | H01S5/00 | In the scheme | 6,197 |
| G02B2006/12147 | Coupler | G02B6/00 | In the scheme | 6,150 |
| G02B6/29395 | 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 configurable, e.g. tunable or reconfigurable | G02B6/00 | In the scheme | 6,114 |
| G02B2006/12107 | Grating | G02B6/00 | In the scheme | 6,109 |
| G02B6/38 | Mechanical coupling means having fibre to fibre mating means | G02B6/00 | In the scheme | 6,087 |
| H01S5/18311 | Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] having a special structure for lateral current or light confinement using selective oxidation | H01S5/00 | In the scheme | 6,079 |
| G02B6/1221 | Basic optical elements, e.g. light-guiding paths made from organic materials | G02B6/00 | In the scheme | 6,078 |
| H04J14/0283 | WDM ring architectures | H04J14/00 | In the scheme | 6,039 |
| H01S5/02212 | Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis | H01S5/00 | In the scheme | 6,024 |
| G02B6/12002 | Three-dimensional structures | G02B6/00 | In the scheme | 5,989 |
| G02B6/4202 | Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles | G02B6/00 | In the scheme | 5,956 |
| H04B10/00 | Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication | H04B10/00 | In the scheme | 5,910 |
| H01S5/02415 | Active cooling, e.g. the laser temperature is controlled by a thermo-electric cooler or water cooling by using a thermo-electric cooler [TEC], e.g. Peltier element | H01S5/00 | In the scheme | 5,900 |
| G02B6/132 | Integrated optical circuits characterised by the manufacturing method by deposition of thin films | G02B6/00 | In the scheme | 5,891 |
| H01S3/06758 | Tandem amplifiers | H01S3/067 | In the scheme | 5,831 |
| H01S5/02326 | Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses | H01S5/00 | In the scheme | 5,816 |
| G02B6/36 | Mechanical coupling means | G02B6/00 | In the scheme | 5,813 |
| H04Q2011/0083 | Testing; Monitoring | H04Q11/0001 | In the scheme | 5,768 |
| H04B10/505 | Laser transmitters using external modulation | H04B10/00 | In the scheme | 5,766 |
| H04B10/572 | Wavelength control | H04B10/00 | In the scheme | 5,733 |
| G02B6/3879 | Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs | G02B6/00 | In the scheme | 5,732 |
| H04B10/801 | Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections | H04B10/00 | In the scheme | 5,678 |
| G02B6/4454 | Cassettes with splices | G02B6/00 | In the scheme | 5,676 |
| H01S5/0265 | Intensity modulators | H01S5/00 | In the scheme | 5,626 |
| H04Q2011/0016 | Construction using wavelength multiplexing or demultiplexing | H04Q11/0001 | In the scheme | 5,543 |
| H04J14/06 | Polarisation multiplex systems | H04J14/00 | In the scheme | 5,535 |
| G02B6/3817 | Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors | G02B6/00 | In the scheme | 5,517 |
| H01S5/0071 | Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction | H01S5/00 | In the scheme | 5,462 |
| H04B10/2575 | Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier | H04B10/00 | In the scheme | 5,460 |
| H04B10/2507 | Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion | H04B10/00 | In the scheme | 5,431 |
| G02B6/138 | Integrated optical circuits characterised by the manufacturing method by using polymerisation | G02B6/00 | In the scheme | 5,420 |
| G02B6/4416 | Heterogeneous cables | G02B6/00 | In the scheme | 5,417 |
| G02B6/3861 | Adhesive bonding | G02B6/00 | In the scheme | 5,398 |
| H01S5/2231 | Buried stripe structure with inner confining structure only between the active layer and the upper electrode | H01S5/00 | In the scheme | 5,347 |
| G02B6/421 | Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub | G02B6/00 | In the scheme | 5,346 |
Match: Direct
The capability is itself a technology or a kind of physical system, and the classification names it. Light guides for lighting and display backlights (G02B6/0001) can be carved out only in CPC, so IPC counts for G02B6 include them. The crosswalk is a first pass that nobody has reviewed.