Widely-tunable harmonic frequency comb in a quantum cascade laser
US-2020335947-A1 · Oct 22, 2020 · US
THz - lasers, i.e. lasers with emission in the wavelength range of typically 0.1 mm to 1 mm
THz - lasers, i.e. lasers with emission in the wavelength range of typically 0.1 mm to 1 mm · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S2302/02 |
| Official title | THz - lasers, i.e. lasers with emission in the wavelength range of typically 0.1 mm to 1 mm |
| Display label | THz - lasers, i.e. lasers with emission in the wavelength range of typically 0.1 mm to 1 mm |
| Total patents | 106 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 12 |
| 2017 | 15 |
| 2018 | 11 |
| 2019 | 14 |
| 2020 | 10 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inhomogeneous focusing and broadband metasurface quantum-cascade lasers
US-2020067281-A1 · Feb 27, 2020 · US
Surface-emitting quantum cascade laser
US-10490977-B2 · Nov 26, 2019 · US
Continuous-wave terahertz generation via optically pumped rydberg states
US-2019339586-A1 · Nov 7, 2019 · US
Spectral narrowing module, refined spectral line device and method therefor
US-2019312405-A1 · Oct 10, 2019 · US
Method of manufacturing quantum cascade laser beam source
US-10439363-B2 · Oct 8, 2019 · US
Surface emitting quantum cascade laser
US-10424899-B2 · Sep 24, 2019 · US
Quantum cascade laser element
US-2019273363-A1 · Sep 5, 2019 · US
Quantum impedance matching for carrier injection in tunable transistor-injected quantum cascade lasers
US-2019267773-A1 · Aug 29, 2019 · US
Laser source and method of manufacturing such
US-2019252853-A1 · Aug 15, 2019 · US
Quantum cascade laser
US-10340663-B2 · Jul 2, 2019 · US
Terahertz laser, terahertz source and use of such a terahertz laser
US-10333267-B2 · Jun 25, 2019 · US
Surface-emitting quantum cascade laser
US-2019148912-A1 · May 16, 2019 · US
Tunable multi-frequency terahertz quantum cascade laser source
US-10230216-B1 · Mar 12, 2019 · US
Surface emitting quantum cascade laser
US-2019074663-A1 · Mar 7, 2019 · US
Method of manufacturing quantum cascade laser beam source
US-2019074664-A1 · Mar 7, 2019 · US
Dual-frequency vertical-external-cavity surface-emitting laser device for THz generation and method for generating THz
US-10141718-B2 · Nov 27, 2018 · US
Apparatus and methods for generating and enhancing smith-purcell radiation
US-2018287329-A1 · Oct 4, 2018 · US
Terahertz laser, terahertz source and use of such a terahertz laser
US-2018254596-A1 · Sep 6, 2018 · US
Nitride semiconductor device and quantum cascade laser using the same
US-10038306-B2 · Jul 31, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S2302/02?
- CPC H01S2302/02 is the Cooperative Patent Classification code for “THz - lasers, i.e. lasers with emission in the wavelength range of typically 0.1 mm to 1 mm.”
- How many patents are filed under CPC H01S2302/02 (THz - lasers, i.e. lasers with emission in the wavelength range of typically 0.1 mm to 1 mm)?
- Our database includes 106 publications tagged with this CPC code.
- Is patent activity under CPC H01S2302/02 growing?
- Publication counts under this code: 6 in 2024 vs 7 in 2025 (latest complete years).