H01S 3/1123
Q-switching
H01S3/1123 (Q-switching) appears on 1,033 US grants and 833 published applications in this corpus.
Search patents in H01S- Granted patents
- 1,033
- Published applications
- 833
- Assignees
- 506
- Inventors
- 1,819
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 15 | 0 |
| 1988 | 17 | 0 |
| 1989 | 19 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 15 | 0 |
| 1993 | 21 | 0 |
| 1994 | 18 | 0 |
| 1995 | 16 | 0 |
| 1996 | 16 | 0 |
| 1997 | 27 | 0 |
| 1998 | 24 | 0 |
| 1999 | 25 | 0 |
| 2000 | 20 | 0 |
| 2001 | 19 | 3 |
| 2002 | 21 | 22 |
| 2003 | 14 | 31 |
| 2004 | 25 | 31 |
| 2005 | 21 | 38 |
| 2006 | 37 | 41 |
| 2007 | 20 | 39 |
| 2008 | 22 | 37 |
| 2009 | 33 | 50 |
| 2010 | 40 | 41 |
| 2011 | 26 | 36 |
| 2012 | 27 | 39 |
| 2013 | 29 | 29 |
| 2014 | 35 | 43 |
| 2015 | 48 | 47 |
| 2016 | 36 | 39 |
| 2017 | 32 | 26 |
| 2018 | 38 | 37 |
| 2019 | 30 | 38 |
| 2020 | 27 | 25 |
| 2021 | 19 | 25 |
| 2022 | 28 | 28 |
| 2023 | 14 | 31 |
| 2024 | 37 | 31 |
| 2025 | 21 | 12 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01S 3/113Using intracavity saturable absorbers367
- H01S 3/115Using intracavity electro-optic devices343
- H01S 3/117Using intracavity acousto-optic devices229
- H01S 3/127Plural q-switches52
- H01S 3/121Using intracavity mechanical devices47
- H01S 3/1127Using pulse transmission mode [ptm]30
- H01S 3/1124Using magneto-optical devices8
Recent patents
- Laser resonator assembly28 Jul 2026US 12,695,263 B2
- Passive Q-switched lasers and methods for operation and manufacture thereof7 Jul 2026US 12,676,453 B2pTriEye Ltd.
- Passive high energy Q-switched laser system with optically synchronized multi-stage/multi-pass amplification9 Jun 2026US 12,651,883 B2Candela Corporation
- Laser apparatus28 Apr 2026US 12,614,888 B2Lutronic Corporation
- Optical resonator, constituent part of optical resonator, and laser device14 Apr 2026US 12,603,469 B2Sony Group Corporation
- Blue laser operating at the h-beta fraunhofer line3 Sep 2026US 2026/0259471 A1Aqwest LLC
- Compact high-repetition-rate passive mode-locked resonant cavity structure and fiber laser13 Aug 2026US 2026/0237958 A1South China University of Technology
- A laser for selectively operating in two different modes16 Jul 2026US 2026/0204869 A1Nkt Photonics A/S
- Gas laser device and electronic device manufacturing method9 Jul 2026US 2026/0196791 A1Gigaphoton Inc.
- Optically pumped microchip laser and a method for generating electromagnetic laser radiation25 Jun 2026US 2026/0180284 A1Picophotonics Ltd.
Most cited
By later US patents
- Controllable surface filter264US 5,619,366 ATexas Instruments Incorporated · 1997
- Elecronically tunable optical periodic surface filters with an alterable resonant frequency262US 5,619,365 ATexas Instruments Incorporated · 1997
- System for rapidly tuning a low pressure pulsed laser164US 4,868,834 AThe United States of America as represented by the Secretary of the Army · 1989
- Variable pulsewidth lasers151US 5,363,387 ARare Earth Medical, Inc. · 1994
- Quasi-phase-matched parametric chirped pulse amplification systems150US 6,181,463 B2Imra America, Inc. · 2001