G02F 1/353
Frequency conversion, i.e. wherein a light beam is generated with frequency components
Official title: {Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams}
G02F1/353 (Frequency conversion, i.e. wherein a light beam is generated with frequency components) appears on 1,889 US grants and 1,710 published applications in this corpus.
Search patents in G02F- Granted patents
- 1,889
- Published applications
- 1,710
- Assignees
- 843
- Inventors
- 3,811
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 16 | 0 |
| 1989 | 14 | 0 |
| 1990 | 21 | 0 |
| 1991 | 15 | 0 |
| 1992 | 16 | 0 |
| 1993 | 20 | 0 |
| 1994 | 33 | 0 |
| 1995 | 23 | 0 |
| 1996 | 23 | 0 |
| 1997 | 22 | 0 |
| 1998 | 39 | 0 |
| 1999 | 37 | 0 |
| 2000 | 22 | 0 |
| 2001 | 37 | 8 |
| 2002 | 23 | 53 |
| 2003 | 30 | 28 |
| 2004 | 59 | 43 |
| 2005 | 30 | 45 |
| 2006 | 49 | 32 |
| 2007 | 41 | 56 |
| 2008 | 42 | 59 |
| 2009 | 49 | 75 |
| 2010 | 60 | 72 |
| 2011 | 49 | 73 |
| 2012 | 46 | 68 |
| 2013 | 69 | 79 |
| 2014 | 75 | 66 |
| 2015 | 84 | 86 |
| 2016 | 80 | 70 |
| 2017 | 76 | 80 |
| 2018 | 81 | 73 |
| 2019 | 87 | 54 |
| 2020 | 70 | 89 |
| 2021 | 59 | 80 |
| 2022 | 74 | 103 |
| 2023 | 74 | 84 |
| 2024 | 66 | 113 |
| 2025 | 79 | 73 |
| 2026 | 49 | 48 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/3544Particular phase matching techniques473
- G02F 1/3534Three-wave interaction422
- G02F 1/3536Four-wave interaction347
- G02F 1/354Third or higher harmonic generation248
- G02F 1/3542Multipass arrangements, i.e. arrangements to make light pass multiple times through the162
- G02F 1/3532Arrangements of plural nonlinear devices for generating multi-colour light beams158
Recent patents
- Differential frequency generation29 Sep 2026US 12,749,866 B2The United States of America as represented by the Secretary of the Air Force
- Optical pulse train generation device and optical pulse train generation method1 Sep 2026US 12,724,318 B2Hamamatsu Photonics K.K.
- System and methods of visible light swept-source optical coherence tomography1 Sep 2026US 12,724,319 B2Northwestern University
- Electrically tunable optical resonator on a chip for fast tunable integrated lasers25 Aug 2026US 12,717,177 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Third-harmonic frequency generator and generation method25 Aug 2026US 12,717,209 B2Cornell University
- Controllable optical device24 Sep 2026US 2026/0287942 A1Brighterwave Oy
- Display apparatus24 Sep 2026US 2026/0287971 A1University of Southampton
- Laser apparatus, laser apparatus wavelength control method, and electronic device manufacturing method17 Sep 2026US 2026/0277108 A1Gigaphoton Inc.
- Frequency comb stabilization using combined detection10 Sep 2026US 2026/0269558 A1ColdQuanta, Inc.
- Blue laser operating at the h-beta fraunhofer line3 Sep 2026US 2026/0259471 A1Aqwest LLC
Most cited
By later US patents
- See-through display with an optical assembly including a wedge-shaped illumination system449US 8,467,133 B2Osterhout Group, Inc. · 2013
- Methods and systems for introducing electromagnetic radiation into photonic crystals288US 5,999,308 AMassachusetts Institute of Technology · 1999
- Display apparatus, backplane and mold for making backplane bracket253US 10,531,579 B2Shenzhen China Star Optoelectronics Technology Co., Ltd. · 2020
- Ultraviolet laser apparatus and exposure apparatus using same250US 7,023,610 B2Nikon Corporation · 2006
- Multiwavelength solid state laser using frequency conversion techniques234US 5,144,630 AJTT International, Inc. · 1992