G02B 6/02095
Long period gratings, i.e. transmission gratings coupling light between core and cladding
Official title: {Long period gratings, i.e. transmission gratings coupling light between core and cladding modes}
G02B6/02095 (Long period gratings, i.e. transmission gratings coupling light between core and cladding) appears on 150 US grants and 114 published applications in this corpus.
Search patents in G02B- Granted patents
- 150
- Published applications
- 114
- Assignees
- 92
- Inventors
- 323
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 5 |
| 2002 | 13 | 12 |
| 2003 | 11 | 12 |
| 2004 | 10 | 10 |
| 2005 | 11 | 4 |
| 2006 | 4 | 5 |
| 2007 | 5 | 2 |
| 2008 | 2 | 4 |
| 2009 | 2 | 8 |
| 2010 | 3 | 11 |
| 2011 | 4 | 1 |
| 2012 | 6 | 3 |
| 2013 | 2 | 0 |
| 2014 | 3 | 2 |
| 2015 | 0 | 3 |
| 2016 | 4 | 7 |
| 2017 | 2 | 2 |
| 2018 | 4 | 2 |
| 2019 | 2 | 3 |
| 2020 | 3 | 2 |
| 2021 | 4 | 3 |
| 2022 | 1 | 3 |
| 2023 | 2 | 2 |
| 2024 | 2 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical fiber cladding optical filter9 Jun 2026US 12,650,558 B2Fuzhou Photop Optics Co., Ltd.
- Surface coating for optical emitter components27 Jan 2026US 12,535,621 B2Lumentum Operations LLC
- Optical fiber devices and methods for directing stimulated raman scattering (SRS) light out of a fiber core and into a cladding14 Oct 2025US 12,444,896 B2nLIGHT, Inc.
- Communication system14 Jan 2025US 12,197,008 B2Huawei Technologies Co., Ltd.
- Long period fiber grating and optical transmission system24 Dec 2024US 12,174,413 B2Nippon Telegraph and Telephone Corporation
- Optical fiber that combines and demultiplexes light2 Jul 2026US 2026/0186201 A1NTT, Inc.
- Low-loss mode couplers based on bragg gratings using propagation constant engineering and transmission links incorporating same12 Mar 2026US 2026/0072215 A1The Board of Trustees of the Leland Stanford Junior University
- Annular small-period-long-period fiber grating sensor, preparation method and applications thereof2 Oct 2025US 2025/0305858 A1Huazhong University of Science and Technology
- Fiber optic cable10 Jul 2025US 2025/0224555 A1Nippon Telegraph and Telephone Corporation
- Optical side input/output circuit7 Nov 2024US 2024/0369769 A1Nippon Telegraph and Telephone Corporation
Most cited
By later US patents
- Optical waveguide sensors having high refractive index sensitivity134US 6,366,722 B1Luna Innovations Incorporated · 2002
- Optical fiber long period sensor having a reactive coating122US 5,864,641 AF&S, Inc. · 1999
- Optical waveguide sensor arrangement having guided modes-non guided modes grating coupler108US 5,641,956 AF&S, Inc. · 1997
- Optical sensor activation device78US 6,021,240 AF&S, Inc. · 2000
- Tunable long-period optical grating device and optical systems employing same73US 5,999,671 ALucent Technologies Inc. · 1999