G02B 6/29344
Operating by modal interference or beating, i.e. of transverse modes
Official title: {operating by modal interference or beating, i.e. of transverse modes, e.g. zero-gap directional coupler, MMI}
G02B6/29344 (Operating by modal interference or beating, i.e. of transverse modes) appears on 160 US grants and 166 published applications in this corpus.
Search patents in G02B- Granted patents
- 160
- Published applications
- 166
- Assignees
- 97
- Inventors
- 326
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 3 |
| 2003 | 4 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 4 |
| 2012 | 1 | 2 |
| 2013 | 1 | 4 |
| 2014 | 3 | 6 |
| 2015 | 7 | 8 |
| 2016 | 10 | 20 |
| 2017 | 23 | 13 |
| 2018 | 12 | 10 |
| 2019 | 13 | 16 |
| 2020 | 12 | 8 |
| 2021 | 9 | 14 |
| 2022 | 10 | 12 |
| 2023 | 7 | 13 |
| 2024 | 9 | 13 |
| 2025 | 7 | 6 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical coupler and visible light source module28 Jul 2026US 12,693,474 B2TDK Corporation
- Integrated photonic 2×3 coupler28 Jul 2026US 12,693,475 B2Cisco Technology, Inc.
- Mach-Zehnder-Interferometer filter and ring-based wavelength-demultiplexing device19 May 2026US 12,631,934 B2Imec Vzw
- Optical structure5 May 2026US 12,619,030 B2Axenic Limited
- Optical transceiver with multimode interferometers24 Feb 2026US 12,562,816 B2Marvell Asia Pte Ltd
- Integrated photonic 2x3 coupler1 Oct 2026US 2026/0299208 A1Cisco Technology, Inc.
- Optical Hybrid with a Folded, Tilted MMI30 Jul 2026US 2026/0219446 A1Ciena Corporation
- Dielectric waveguide-based multi-mode interference coupler and interferometer23 Jul 2026US 2026/0211186 A1Silith Technology Pte. Ltd.
- Optical communication devices with selective signal preclusion21 May 2026US 2026/0140316 A1Mellanox Technologies, Ltd.
- Multi-mode optical waveguides with deviations in geometric features to improve performance12 Mar 2026US 2026/0072216 A1Ciena Corporation
Most cited
By later US patents
- Communications tuning construction68US 4,342,499 A1982
- Device for tapping radiation from, or injecting radiation into, single made optical fiber, and communication system comprising same55US 4,749,248 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1988
- Method and system for integrated power combiners30US 8,625,935 B2Luxtera, Inc. · 2014
- Dynamic couplers using two-mode optical waveguides26US 4,895,421 AThe Board of Trustees of the Leland Stanford Junior University · 1990
- Wavelength selective mode couplers26US 4,974,931 AAT&T Bell Laboratories · 1990