G02B 6/29332
Wavelength selective couplers, i.e. based on evanescent coupling between light guides
Official title: {Wavelength selective couplers, i.e. based on evanescent coupling between light guides, e.g. fused fibre couplers with transverse coupling between fibres having different propagation constant wavelength dependency}
G02B6/29332 (Wavelength selective couplers, i.e. based on evanescent coupling between light guides) appears on 297 US grants and 158 published applications in this corpus.
Search patents in G02B- Granted patents
- 297
- Published applications
- 158
- Assignees
- 180
- Inventors
- 621
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
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| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 8 | 0 |
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| 1996 | 10 | 0 |
| 1997 | 4 | 0 |
| 1998 | 12 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 18 | 4 |
| 2002 | 15 | 24 |
| 2003 | 19 | 10 |
| 2004 | 8 | 11 |
| 2005 | 9 | 3 |
| 2006 | 6 | 6 |
| 2007 | 5 | 3 |
| 2008 | 3 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 4 |
| 2012 | 1 | 5 |
| 2013 | 1 | 4 |
| 2014 | 3 | 4 |
| 2015 | 5 | 2 |
| 2016 | 5 | 6 |
| 2017 | 6 | 5 |
| 2018 | 6 | 7 |
| 2019 | 7 | 9 |
| 2020 | 5 | 7 |
| 2021 | 9 | 7 |
| 2022 | 8 | 10 |
| 2023 | 10 | 7 |
| 2024 | 4 | 8 |
| 2025 | 5 | 7 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polarization control in optical couplers16 Jun 2026US 12,656,554 B2Ciena Corporation
- Optical fiber cladding optical filter9 Jun 2026US 12,650,558 B2Fuzhou Photop Optics Co., Ltd.
- Integrated optical transceiver apparatus and optical line terminal28 Apr 2026US 12,615,461 B2Huawei Technologies Co., Ltd.
- Managing evanescent optical coupling in photonic integrated circuits24 Feb 2026US 12,560,757 B2Ciena Corporation
- Optical fiber network device and optical fiber optic signal transmission method17 Feb 2026US 12,556,277 B2AuthenX Inc.
- Optical fiber that combines and demultiplexes light2 Jul 2026US 2026/0186201 A1NTT, Inc.
- Managing evanescent optical coupling in photonic integrated circuits21 May 2026US 2026/0140306 A1Ciena Corporation
- Optical eyepiece using single-sided patterning of grating couplers30 Apr 2026US 2026/0118655 A1Magic Leap, Inc.
- Programmable universal photonic array19 Mar 2026US 2026/0079304 A1
- Tapered optical features for optical fiber connections2 Oct 2025US 2025/0306287 A1Intel Corporation
Most cited
By later US patents
- Apparatus using two-mode optical waveguide with non-circular core294US 4,915,468 AThe Board of Trustees of the Leland Stanford Junior University · 1990
- Alternating sequential half duplex communication system218US 4,979,170 AQUALCOMM Incorporated · 1990
- Methods and apparatus for controllable coupling of an electromagnetic wave172US 10,469,192 B2AT&T Intellectual Property I, L. P. · 2019
- Optical communication systems using raman repeaters and components therefor167US 4,616,898 APolaroid Corporation · 1986
- Wavelength selective optical devices using optical directional coupler115US 4,900,119 ACanadian Patents and Development Limited · 1990