Free-carrier absorption variable optical attenuators and thermal phase shifters formed by an optical waveguide having multiple passes in an intrinsic region
US-11226504-B2 · Jan 18, 2022 · US
Physics
Physics · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F2001/0156 |
| Official title | — |
| Display label | Physics (mapped technology topic) |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High-power hybrid silicon-photonics laser
US-10985524-B1 · Apr 20, 2021 · US
Optical modulating device and apparatus including the same
US-10921618-B2 · Feb 16, 2021 · US
Free-carrier absorption variable optical attenuators and thermal phase shifters formed by an optical waveguide having multiple passes in an intrinsic region
US-2021018768-A1 · Jan 21, 2021 · US
Wavelength locking filter
US-2020393708-A1 · Dec 17, 2020 · US
Wavelength locking filter
US-10782544-B2 · Sep 22, 2020 · US
Silicon-based modulator with different transition zone thicknesses
US-2020124883-A1 · Apr 23, 2020 · US
Wavelength locking filter
US-2020041823-A1 · Feb 6, 2020 · US
Optical Pulse Clipper for Lidar
US-2019391240-A1 · Dec 26, 2019 · US
Wavelength locking filter
US-10466512-B2 · Nov 5, 2019 · US
Optical phase shifter, optical interferometer based thereupon, and method of manufacture thereof
US-10386660-B2 · Aug 20, 2019 · US
Wavelength locking filter
US-2019011732-A1 · Jan 10, 2019 · US
Optical phase shifter, optical interferometer based thereupon, and method of manufacture thereof
US-2018284493-A1 · Oct 4, 2018 · US
Wavelength locking filter
US-10082685-B2 · Sep 25, 2018 · US
Silicon electro-optical modulator
US-9977269-B2 · May 22, 2018 · US
Silicon electro-optical modulator
US-9939666-B2 · Apr 10, 2018 · US
Optical modulator, imaging device and display apparatus including a dielectric layer and an electrode comprising graphene
US-9846317-B2 · Dec 19, 2017 · US
Wavelength locking filter
US-9835881-B2 · Dec 5, 2017 · US
Silicon electro-optical modulator
US-2017336658-A1 · Nov 23, 2017 · US
Optical modulator with plasmon based coupling
US-9823498-B2 · Nov 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F2001/0156?
- CPC G02F2001/0156 is the Cooperative Patent Classification code for “Physics.”
- How many patents are filed under CPC G02F2001/0156 (Physics)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC G02F2001/0156 growing?
- Publication counts under this code: 3 in 2021 vs 1 in 2022 (latest complete years).