H01S 3/0092
Nonlinear frequency conversion
Official title: {Nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity (nonlinear frequency conversion per se G02F1/35)}
H01S3/0092 (Nonlinear frequency conversion) appears on 853 US grants and 1,003 published applications in this corpus.
Search patents in H01S- Granted patents
- 853
- Published applications
- 1,003
- Assignees
- 446
- Inventors
- 1,815
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 6 |
| 2005 | 2 | 6 |
| 2006 | 3 | 23 |
| 2007 | 7 | 9 |
| 2008 | 3 | 6 |
| 2009 | 10 | 31 |
| 2010 | 20 | 24 |
| 2011 | 15 | 30 |
| 2012 | 22 | 47 |
| 2013 | 32 | 55 |
| 2014 | 56 | 66 |
| 2015 | 66 | 63 |
| 2016 | 68 | 69 |
| 2017 | 74 | 64 |
| 2018 | 57 | 55 |
| 2019 | 61 | 65 |
| 2020 | 60 | 61 |
| 2021 | 36 | 59 |
| 2022 | 58 | 70 |
| 2023 | 46 | 53 |
| 2024 | 45 | 66 |
| 2025 | 58 | 45 |
| 2026 | 31 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Time-of-flight measurement on user with cameras and position sensor6 Oct 2026US 12,751,628 B2Omni Medsci, Inc.
- Method and laser pulse enhancement apparatus for resonantly enhancing pulsed laser light for practical applications and sensitive measurements15 Sep 2026US 12,738,706 B2MAX-PLANCK-GESELLSCHAFT zur FOERDERUNG der WISSENSCHAFTEN.e.V
- Remote sensing system with time-of-flight sensor, active illuminator and light sensing system1 Sep 2026US 12,721,527 B2Omni Medsci, Inc.
- Third-harmonic frequency generator and generation method25 Aug 2026US 12,717,209 B2Cornell University
- Ultraviolet laser light generation device25 Aug 2026US 12,719,227 B2Josho Gakuen Educational Foundation
- Laser apparatus, laser apparatus wavelength control method, and electronic device manufacturing method17 Sep 2026US 2026/0277108 A1Gigaphoton Inc.
- Displacement sensing10 Sep 2026US 2026/0266594 A1UNM Rainforest Innovations
- Combined laser sources for sample characterization13 Aug 2026US 2026/0235527 A1KLA Corporation
- Method and system to stabilize a frequency sum generated laser13 Aug 2026US 2026/0237955 A1ASML Netherlands B. V.
- B-integral compensation in amplification of ultrashort laser pulses13 Aug 2026US 2026/0237957 A1Coherent Scotland Limited
Most cited
By later US patents
- Resonator-enhanced optoelectronic devices and methods of making same308US 9,019,595 B2VerLASE Technologies LLC · 2015
- Mode-locked multimode fiber laser pulse source108US 6,275,512 B1Imra America, Inc. · 2001
- Laser with electrically-controlled grating reflector103US 5,504,772 ADeacon Research · 1996
- Synchronously pumped dye laser using ultrashort pump pulses100US 4,646,308 ASpectra-Physics, Inc. · 1987
- Pulsed laser sources92US 7,190,705 B2Imra America, Inc. · 2007