Optical modulator
US-2021318588-A1 · Oct 14, 2021 · US
travelling wave
travelling wave · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F2201/127 |
| Official title | travelling wave |
| Display label | travelling wave |
| Total patents | 138 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 9 |
| 2017 | 13 |
| 2018 | 13 |
| 2019 | 12 |
| 2020 | 6 |
| 2021 | 16 |
| 2022 | 19 |
| 2023 | 17 |
| 2024 | 13 |
| 2025 | 13 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical waveguide element, optical modulator, optical modulation module, and optical transmission apparatus
US-2021165299-A1 · Jun 3, 2021 · US
Electrical-optical modulator
US-2021080798-A1 · Mar 18, 2021 · US
Silicon-based electro-optic modulator
US-2021055581-A1 · Feb 25, 2021 · US
Optical modulator
US-2020310170-A1 · Oct 1, 2020 · US
Optical modulator
US-2020271963-A1 · Aug 27, 2020 · US
Semiconductor optical modulator
US-2020225556-A1 · Jul 16, 2020 · US
Distributed travelling-wave mach-zehnder modulator driver
US-2020186253-A1 · Jun 11, 2020 · US
Optical modulator
US-2020012163-A1 · Jan 9, 2020 · US
Distributed travelling-wave mach-zehnder modulator driver
US-10530487-B2 · Jan 7, 2020 · US
Optical waveguide device module
US-2019302490-A1 · Oct 3, 2019 · US
Distributed travelling-wave mach-zehnder modulator driver
US-2019253149-A1 · Aug 15, 2019 · US
Optical modulator and a driving circuit therefor
US-2019187495-A1 · Jun 20, 2019 · US
Distributed traveling-wave Mach-Zehnder modulator driver
US-10320488-B2 · Jun 11, 2019 · US
Photonic integrated circuit package
US-10290619-B2 · May 14, 2019 · US
Light modulation element
US-10261385-B2 · Apr 16, 2019 · US
Distributed traveling-wave mach-zehnder modulator driver
US-2019109647-A1 · Apr 11, 2019 · US
Electro-optic mach-zehnder modulator and method for fabricating an electro-optic mach-zehnder modulator
US-10247998-B2 · Apr 2, 2019 · US
Electrical line arrangement
US-10216014-B2 · Feb 26, 2019 · US
Distributed traveling-wave Mach-Zehnder modulator driver
US-10205531-B2 · Feb 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F2201/127?
- CPC G02F2201/127 is the Cooperative Patent Classification code for “travelling wave.”
- How many patents are filed under CPC G02F2201/127 (travelling wave)?
- Our database includes 138 publications tagged with this CPC code.
- Is patent activity under CPC G02F2201/127 growing?
- Publication counts under this code: 13 in 2024 vs 13 in 2025 (latest complete years).