G02B 6/2843
The couplers having polarisation maintaining or holding properties
Official title: {the couplers having polarisation maintaining or holding properties (polarisation preserving light guides G02B6/105)}
G02B6/2843 (The couplers having polarisation maintaining or holding properties) appears on 96 US grants and 40 published applications in this corpus.
Search patents in G02B- Granted patents
- 96
- Published applications
- 40
- Assignees
- 57
- Inventors
- 185
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 6 |
| 2003 | 4 | 7 |
| 2004 | 6 | 2 |
| 2005 | 1 | 3 |
| 2006 | 4 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 3 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fiber-optic gyroscope with a dual-injection polarization-maintaining 3x3 directional coupler for enhanced measurement sensitivity through heterodyne6 May 2025US 12,292,287 B2
- Photonic lantern structures and devices21 Feb 2023US 11,588,292 B2Massachusetts Institute of Technology
- M-Z interface light path structure with all polarization-maintaining function8 Nov 2022US 11,493,693 B2Guangdong Fu'an Technology Development Co., Ltd.
- Optical fiber coupler15 Mar 2022US 11,275,216 B2Tatsuta Electric Wire & Cable Co., Ltd.
- Polarization-insensitive directional couplers23 Nov 2021US 11,181,693 B1GLOBALFOUNDRIES U. S. Inc.
- Tap Monitor For Use With Optical Power And Method Of Making The Same29 Jan 2026US 2026/0029582 A1Lightel Technologies, Inc.
- Fiber-optic gyroscope with a dual-injection polarization- maintaining 3x3 directional coupler for enhanced measurement sensitivity through heterodyne2 Nov 2023US 2023/0349696 A1
- Optical wiring component23 Mar 2023US 2023/0090783 A1Sumitomo Electric Industries, Ltd.
- Interferometric fiber-optic gyroscope with reduced common mode phase noises and polarization crosstalk for enhanced measurement sensitivity and accuracy16 Feb 2023US 2023/0050230 A1
- M-z interface light path structure with all polarization-maintaining function3 Jun 2021US 2021/0165235 A1Guangdong Fu'an Technology Development Co., Ltd.
Most cited
By later US patents
- Coupled communications fibers131US 4,315,666 A1982
- Polarization-maintaining optical fibers for coupler fabrication68US 4,906,068 AMinnesota Mining and Manufacturing Company · 1990
- Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors59US 4,699,513 AStanford University · 1987
- Single mode, single polarization optical fiber with accessible guiding region and method of forming directional coupler using same54US 4,669,814 AAndrew Corporation · 1987
- Method of making a polarization-insensitive, evanescent-wave, fused coupler with minimal environmental sensitivity51US 4,632,513 AGould Inc. · 1986