Epitaxial growth of cladding regions for a gallium and nitrogen containing laser diode
US-10439365-B1 · Oct 8, 2019 · US
Structure or shape of the semiconductor body to guide the optical wave {; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers}
Structure or shape of the semiconductor body to guide the optical wave {; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection 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 | H01S5/20 |
| Official title | Structure or shape of the semiconductor body to guide the optical wave {; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers} |
| Display label | Structure or shape of the semiconductor body to guide the optical wave {; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers} |
| Total patents | 156 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 14 |
| 2017 | 13 |
| 2018 | 15 |
| 2019 | 13 |
| 2020 | 5 |
| 2021 | 13 |
| 2022 | 14 |
| 2023 | 16 |
| 2024 | 16 |
| 2025 | 16 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Distributed Bragg reflector tunable laser diode
US-10148067-B2 · Dec 4, 2018 · US
A laser safety adaptor for use in laser based imaging systems and related devices
US-2018337507-A1 · Nov 22, 2018 · US
LD module
US-10116117-B2 · Oct 30, 2018 · US
Edge-emitting etched-facet lasers
US-10044168-B2 · Aug 7, 2018 · US
Edge-emitting etched-facet lasers
US-10038298-B2 · Jul 31, 2018 · US
Distributed bragg reflector tunable laser diode
US-2018205200-A1 · Jul 19, 2018 · US
Semi-polar iii-nitride optoelectronic devices on m-plane substrates with miscuts less than +/- 15 degrees in the c-direction
US-2018152004-A1 · May 31, 2018 · US
Laser ablation of wavelength transparent material with material modification
US-2018138522-A1 · May 17, 2018 · US
Methods for fabricating light emitting devices
US-9972974-B1 · May 15, 2018 · US
Edge-emitting etched-facet lasers
US-2018109070-A1 · Apr 19, 2018 · US
Edge-emitting etched-facet lasers
US-2018090907-A1 · Mar 29, 2018 · US
Semi-polar III-nitride optoelectronic devices on M-plane substrates with miscuts less than +/− 15 degrees in the C-direction
US-9917422-B2 · Mar 13, 2018 · US
Quantum cascade laser integrated device
US-9917420-B2 · Mar 13, 2018 · US
Edge-emitting etched-facet lasers
US-9893488-B2 · Feb 13, 2018 · US
Side-view light emitting laser element
US-2018019575-A1 · Jan 18, 2018 · US
Edge-emitting Semiconductor Laser and Method for Operating a Semiconductor Laser
US-2017365982-A1 · Dec 21, 2017 · US
Quantum cascade laser integrated device
US-2017353009-A1 · Dec 7, 2017 · US
Directly modulated laser for PON application
US-9831631-B2 · Nov 28, 2017 · US
Fast tunable hybrid laser with a silicon-photonic switch
US-9780524-B1 · Oct 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S5/20?
- CPC H01S5/20 is the Cooperative Patent Classification code for “Structure or shape of the semiconductor body to guide the optical wave {; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers}.”
- How many patents are filed under CPC H01S5/20 (Structure or shape of the semiconductor body to guide the optical wave {; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers})?
- Our database includes 156 publications tagged with this CPC code.
- Is patent activity under CPC H01S5/20 growing?
- Publication counts under this code: 16 in 2024 vs 16 in 2025 (latest complete years).