H01S 2301/00
Functional characteristics
H01S2301/00 (Functional characteristics) appears on 4,471 US grants and 4,703 published applications in this corpus.
Search patents in H01S- Granted patents
- 4,471
- Published applications
- 4,703
- Assignees
- 1,238
- Inventors
- 7,281
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 10 | 0 |
| 1988 | 9 | 0 |
| 1989 | 11 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 20 | 0 |
| 1993 | 43 | 0 |
| 1994 | 43 | 0 |
| 1995 | 46 | 0 |
| 1996 | 54 | 0 |
| 1997 | 59 | 0 |
| 1998 | 84 | 0 |
| 1999 | 82 | 0 |
| 2000 | 101 | 0 |
| 2001 | 89 | 34 |
| 2002 | 130 | 181 |
| 2003 | 149 | 220 |
| 2004 | 160 | 189 |
| 2005 | 145 | 218 |
| 2006 | 148 | 173 |
| 2007 | 123 | 175 |
| 2008 | 135 | 163 |
| 2009 | 135 | 167 |
| 2010 | 158 | 170 |
| 2011 | 153 | 185 |
| 2012 | 126 | 144 |
| 2013 | 164 | 148 |
| 2014 | 164 | 137 |
| 2015 | 166 | 169 |
| 2016 | 163 | 172 |
| 2017 | 162 | 168 |
| 2018 | 169 | 179 |
| 2019 | 175 | 189 |
| 2020 | 150 | 229 |
| 2021 | 152 | 269 |
| 2022 | 154 | 244 |
| 2023 | 165 | 248 |
| 2024 | 164 | 234 |
| 2025 | 158 | 157 |
| 2026 | 121 | 141 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01S 2301/17Semiconductor lasers comprising special layersIndexing code1,513
- H01S 2301/02Ase , noiseIndexing code913
- H01S 2301/04Gain spectral shaping, flatteningIndexing code594
- H01S 2301/16Semiconductor lasers with special structural design to influence the modesIndexing code548
- H01S 2301/18Semiconductor lasers with special structural design for influencing the near- or far-fieldIndexing code527
- H01S 2301/08Generation of pulses with special temporal shape or frequency spectrumIndexing code240
- H01S 2301/20Lasers with a special output beam profile or cross-sectionIndexing code213
- H01S 2301/03Suppression of nonlinear conversionIndexing code209
Recent patents
- Ridge waveguide laser with dielectric current confinement29 Sep 2026US 12,749,872 B2Applied Optoelectronics, Inc.
- Data-driven modeling of erbium doped fiber amplifiers by neural networks8 Sep 2026US 12,731,952 B2NEC Corporation
- Rare-earth doped fiber and fiber laser apparatus1 Sep 2026US 12,725,994 B2Fujikura Ltd.
- Single mode beam25 Aug 2026US 12,719,228 B2nLIGHT, Inc.
- Nitride semiconductor laser element25 Aug 2026US 12,719,233 B2Nichia Corporation
- Vernier-tuned distributed bragg reflector laser24 Sep 2026US 2026/0291180 A1Lumentum Operations LLC
- Thin quantum barrier with high aluminum content for ultraviolet light emitters17 Sep 2026US 2026/0282604 A1The Regents of the University of California
- An Optical Amplifier System3 Sep 2026US 2026/0261089 A1Leonardo UK Ltd
- Multi-wavelength emitter3 Sep 2026US 2026/0261095 A1Lumentum Operations LLC
- Two-dimensional periodically index-coupled fabry perot laser ("2d pic-fl")27 Aug 2026US 2026/0254200 A1
Most cited
By later US patents
- Method of growing nitride semiconductors, nitride semiconductor substrate and nitride semiconductor device643US 6,153,010 ANichia Chemical Industries, Ltd. · 2000
- Light-emitting semiconductor device462US 5,696,389 AKabushiki Kaisha Toshiba · 1997
- Quantum dot Laser374US 5,260,957 AThe Charles Stark Draper Laboratory, Inc. · 1993
- Nitride semiconductor light-emitting and light-receiving devices282US 6,172,382 B2Nichia Chemical Industries, Ltd. · 2001
- Vertical cavity surface emitting laser device278US 7,483,466 B2Canon Kabushiki Kaisha · 2009