Integrated polarization controller with optical attenuator for crosstalk and power fluctuation reduction
US-2025300732-A1 · Sep 25, 2025 · US
Polarisation scrambling devices; Depolarisers
Polarisation scrambling devices; Depolarisers · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F1/0139 |
| Official title | {Polarisation scrambling devices; Depolarisers} |
| Display label | Polarisation scrambling devices; Depolarisers |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Techniques for providing a swept wavelength (SW) measurement for acquiring polarization dependent loss (PDL) in a single scan
US-12038346-B2 · Jul 16, 2024 · US
Polarization scrambler using a retardance element
US-12007631-B2 · Jun 11, 2024 · US
Polarization scrambler using a retardance element
US-2024019721-A1 · Jan 18, 2024 · US
Integrated metasurfaces for free-space wavefront generation with complete amplitude, phase, and polarization control
US-2023367144-A1 · Nov 16, 2023 · US
Polarization scrambler using a retardance element
US-11754862-B2 · Sep 12, 2023 · US
Polarization scrambler using a retardance element
US-2023105391-A1 · Apr 6, 2023 · US
Lightguide optical element for polarization scrambling
US-11573371-B2 · Feb 7, 2023 · US
Polarization scrambler using a retardance element
US-11526035-B2 · Dec 13, 2022 · US
Techniques for providing a swept wavelength (sw) measurement for acquiring polarization dependent loss (pdl) in a single scan
US-2022390322-A1 · Dec 8, 2022 · US
Lightguide optical element for polarization scrambling
US-2022019018-A1 · Jan 20, 2022 · US
Polarization state scrambler
US-11067837-B2 · Jul 20, 2021 · US
Faraday-based polarization scrambler
US-10866438-B2 · Dec 15, 2020 · US
Polarization scrambler using a retardance element
US-2020387015-A1 · Dec 10, 2020 · US
Faraday-based polarization scrambler
US-2020292852-A1 · Sep 17, 2020 · US
Polarization control based upon a polarization reference state
US-10598965-B2 · Mar 24, 2020 · US
Polarization state scrambler
US-2020064662-A1 · Feb 27, 2020 · US
Method and apparatus of private display device
US-10448002-B2 · Oct 15, 2019 · US
Method and apparatus of private display device
US-10045010-B2 · Aug 7, 2018 · US
Method and apparatus of private display device
US-2018192040-A1 · Jul 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F1/0139?
- CPC G02F1/0139 is the Cooperative Patent Classification code for “Polarisation scrambling devices; Depolarisers.”
- How many patents are filed under CPC G02F1/0139 (Polarisation scrambling devices; Depolarisers)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC G02F1/0139 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).