High-power planar waveguide (pwg) pumphead with modular components for high-power laser system
US-2017353005-A1 · Dec 7, 2017 · US
Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers
Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S5/2018 |
| Official title | {Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers} |
| Display label | Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers |
| Total patents | 189 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 19 |
| 2017 | 20 |
| 2018 | 19 |
| 2019 | 13 |
| 2020 | 20 |
| 2021 | 15 |
| 2022 | 13 |
| 2023 | 11 |
| 2024 | 13 |
| 2025 | 15 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Quantum cascade laser
US-2017338627-A1 · Nov 23, 2017 · US
Semiconductor device and fabrication method
US-9793686-B2 · Oct 17, 2017 · US
Laser diode
US-2017294761-A1 · Oct 12, 2017 · US
Improved laser structure
US-2017271846-A1 · Sep 21, 2017 · US
Methods for forming photonic integrated circuits based on quantum cascade structures
US-9735549-B2 · Aug 15, 2017 · US
Flared laser oscillator waveguide
US-2017222402-A1 · Aug 3, 2017 · US
Optical semiconductor device, semiconductor laser module, and optical fiber amplifier
US-2017187168-A1 · Jun 29, 2017 · US
Photonic Integrated Circuit Including Compact Lasers With Extended Tunability
US-2017163000-A1 · Jun 8, 2017 · US
Laser element and laser device
US-9614352-B2 · Apr 4, 2017 · US
Optical semiconductor device, semiconductor laser module, and optical fiber amplifier
US-9601905-B2 · Mar 21, 2017 · US
Quantum cascade laser
US-2017063044-A1 · Mar 2, 2017 · US
Method of strain engineering and related optical device using a gallium and nitrogen containing active region
US-9570888-B1 · Feb 14, 2017 · US
Edge emitting semiconductor laser
US-9559494-B2 · Jan 31, 2017 · US
Flared laser oscillator waveguide
US-9553424-B2 · Jan 24, 2017 · US
Angled facet broad-ridge quantum cascade laser
US-9515457-B2 · Dec 6, 2016 · US
Angled facet broad-ridge quantum cascade laser
US-2016322785-A1 · Nov 3, 2016 · US
Iii-v lasers with integrated silicon photonic circuits
US-2016301192-A1 · Oct 13, 2016 · US
Semiconductor laser device and method of manufacturing the semiconductor laser device
US-2016285238-A1 · Sep 29, 2016 · US
Monolithic integrated photonics with lateral bipolar and bicmos
US-2016276807-A1 · Sep 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S5/2018?
- CPC H01S5/2018 is the Cooperative Patent Classification code for “Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers.”
- How many patents are filed under CPC H01S5/2018 (Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers)?
- Our database includes 189 publications tagged with this CPC code.
- Is patent activity under CPC H01S5/2018 growing?
- Publication counts under this code: 13 in 2024 vs 15 in 2025 (latest complete years).