G02F 1/3519
Of sagnac type, i.e. nonlinear optical loop mirror [nolm]
Official title: {of Sagnac type, i.e. nonlinear optical loop mirror [NOLM]}
G02F1/3519 (Of sagnac type, i.e. nonlinear optical loop mirror [nolm]) appears on 114 US grants and 72 published applications in this corpus.
Search patents in G02F- Granted patents
- 114
- Published applications
- 72
- Assignees
- 74
- Inventors
- 183
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 3 |
| 2002 | 13 | 7 |
| 2003 | 6 | 7 |
| 2004 | 4 | 2 |
| 2005 | 5 | 5 |
| 2006 | 6 | 5 |
| 2007 | 2 | 3 |
| 2008 | 3 | 5 |
| 2009 | 5 | 5 |
| 2010 | 4 | 7 |
| 2011 | 5 | 4 |
| 2012 | 2 | 2 |
| 2013 | 4 | 0 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fiber optic gyroscope with optical gating for spike suppression14 Apr 2026US 12,601,595 B2The Board of Trustees of the Leland Stanford Junior University
- Multi-mode pump laser based multi-wavelength entangled photon pair generation device and quantum key distribution network configuration method using the same12 Aug 2025US 12,386,236 B1Agency for Defense Development
- Method for generating ultrashort pulses4 Jun 2024US 12,003,071 B2Centre National De La Recherche Scientifique
- Federated quantum computing distributed architecture20 Feb 2024US 11,907,804 B2AT&T Intellectual Property I, L. P.
- Wavelength converter and fiber optic transmission system12 Jul 2022US 11,387,912 B2Fujitsu Limited
- Method and system for alignment and/or stabilization of an entangled photon source6 Aug 2026US 2026/0227235 A1Quantum Industries Limited
- Method and system for stabilization of a laser beam for an entangled photon source6 Aug 2026US 2026/0229835 A1Quantum Industries Limited
- Fiber optic gyroscope with optical gating for spike suppression16 Jul 2026US 2026/0202202 A1The Board of Trustees of the Leland Stanford Junior University
- Loop interferometer for passive state of light preparation4 Jun 2026US 2026/0153383 A1Technology Innovation Institute - Sole Proprietorship LLC
- Generic module for pure photons entanglement6 Nov 2025US 2025/0341753 A1OZ Optics Ltd.
Most cited
By later US patents
- Optical frequency shifter143US 5,619,368 AMassachusetts Inst. of Technology · 1997
- Terahertz optical asymmetric demultiplexer47US 5,493,433 AThe Trustees of Princeton University · 1996
- Optical device producing an intensity dependent phase shift45US 4,962,987 ABritish Telecommunications Public Ltd.Co. · 1990
- Multiple-channel all-optical TDM-WDM converter and multiple-channel all-optical TDM demultiplexer37US 6,023,360 ANippon Telegraph and Telephone Corporation · 2000
- Recovery of clock pulses of wavelength division multiplexed optical signals34US 6,813,447 B2Corning Incorporated · 2004