G02B 6/02076
Refractive index modulation gratings
Official title: {Refractive index modulation gratings, e.g. Bragg gratings}
G02B6/02076 (Refractive index modulation gratings) appears on 1,901 US grants and 1,620 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,901
- Published applications
- 1,620
- Assignees
- 752
- Inventors
- 3,324
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 13 | 0 |
| 1995 | 13 | 0 |
| 1996 | 18 | 0 |
| 1997 | 35 | 0 |
| 1998 | 59 | 0 |
| 1999 | 57 | 0 |
| 2000 | 74 | 0 |
| 2001 | 119 | 31 |
| 2002 | 113 | 116 |
| 2003 | 116 | 176 |
| 2004 | 123 | 132 |
| 2005 | 100 | 86 |
| 2006 | 108 | 69 |
| 2007 | 58 | 62 |
| 2008 | 59 | 44 |
| 2009 | 31 | 55 |
| 2010 | 44 | 49 |
| 2011 | 21 | 28 |
| 2012 | 43 | 37 |
| 2013 | 23 | 36 |
| 2014 | 29 | 38 |
| 2015 | 31 | 38 |
| 2016 | 50 | 46 |
| 2017 | 49 | 62 |
| 2018 | 50 | 76 |
| 2019 | 81 | 81 |
| 2020 | 82 | 72 |
| 2021 | 53 | 69 |
| 2022 | 46 | 69 |
| 2023 | 55 | 44 |
| 2024 | 44 | 46 |
| 2025 | 42 | 35 |
| 2026 | 22 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02B 6/0208Characterised by their structure, wavelength response804
- G02B 6/02123Characterised by the method of manufacture of the grating601
- G02B 6/02195Characterised by means for tuning the grating477
- G02B 6/02171Characterised by means for compensating environmentally induced changes279
- G02B 6/02114Characterised by enhanced photosensitivity characteristics of the fibre119
- G02B 6/02209Mounting means95
Recent patents
- Optical sensor and system6 Oct 2026US 12,754,132 B2The University of Sydney
- Athermal glasses and athermal systems for infrared optics22 Sep 2026US 12,741,901 B2Schott AG
- Laser interferometer and method for controlling laser interferometer15 Sep 2026US 12,736,828 B2Seiko Epson Corporation
- Optical isolator based on volume Bragg gratings18 Aug 2026US 12,710,578 B2University of Central Florida Foundation, Inc.
- Optoelectronic device18 Aug 2026US 12,710,604 B2Advanced Semiconductor Engineering, Inc.
- Adaptive thermal control for micro-ring modulators in photonic links8 Oct 2026US 2026/0309943 A1Samsung Electronics Co., Ltd.
- A novel technique for leak detection and quantification using fiber bragg gratings1 Oct 2026US 2026/0298764 A1
- Structured Film and Method of Using Same to Form a Pattern on a Substrate27 Aug 2026US 2026/0251967 A13M Innovative Properties Company
- Overlapped Fiber Bragg Gratings With Different Reflectivities13 Aug 2026US 2026/0235800 A1Intuitive Surgical Operations, Inc.
- Shape Sensing Fiber Optic Tip Protection Systems and Devices23 Jul 2026US 2026/0207267 A1Bard Access Systems, Inc.
Most cited
By later US patents
- Multicore optical fibre354US 6,301,420 B1The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 2001
- Fiber optic position and/or shape sensing based on rayleigh scatter344US 7,772,541 B2Luna Innnovations Incorporated · 2010
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Fiber optic position and shape sensing device and method relating thereto229US 7,781,724 B2Luna Innovations Incorporated · 2010
- Variable optical fiber Bragg filter arrangement226US 5,007,705 AUnited Technologies Corporation · 1991