Receiver-based fiber-optic link monitor
US-12425104-B2 · Sep 23, 2025 · US
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by measuring polarization dependent loss [PDL]
by measuring polarization dependent loss [PDL] · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01M11/337 |
| Official title | {by measuring polarization dependent loss [PDL]} |
| Display label | by measuring polarization dependent loss [PDL] |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 4 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
On-silicon integrated test structure for the characterization of the pdl of a fiber/silicon optical coupler with a two-dimensional diffraction grating
US-2025207998-A1 · Jun 26, 2025 · US
Methods and systems for characterization of polarization-dependent loss or gain in optical links and components
US-2024283531-A1 · Aug 22, 2024 · US
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
Receiver-based fiber-optic link monitor
US-2024007187-A1 · Jan 4, 2024 · 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
Polarization-dependent loss determining method, detection system, and optical signal transmission structure
US-11343010-B2 · May 24, 2022 · US
Referencing insertion loss using back-facet monitor from lasers
US-11326982-B2 · May 10, 2022 · US
Hybrid automated testing equipment for testing of optical-electrical devices
US-2022034750-A1 · Feb 3, 2022 · US
Polarization-Dependent Loss Determining Method, Detection System, and Optical Signal Transmission Structure
US-2021320742-A1 · Oct 14, 2021 · US
Mode-dependent loss measurement method and measurement device
US-11022523-B2 · Jun 1, 2021 · US
Measuring polarization extinction ratio (PER) using a reference master test jumper (MTJ)
US-11002632-B2 · May 11, 2021 · US
Measuring polarization extinction ratio (per) using a reference master test jumper (mtj)
US-2020408637-A1 · Dec 31, 2020 · US
Monitorable hollow core optical fiber
US-2020378864-A1 · Dec 3, 2020 · US
Monitorable hollow core optical fiber
US-10845268-B1 · Nov 24, 2020 · US
Referencing insertion loss using back-facet monitor from lasers
US-2019280457-A1 · Sep 12, 2019 · US
Optical connector polarity and loss measurement using an integrating sphere-equipped optical measurement device
US-10302529-B2 · May 28, 2019 · US
Method and system for differentiating macro-bend losses from splice and connector losses in fiber-optic links
US-10148350-B2 · Dec 4, 2018 · US
Optical connector polarity and loss measurement using an integrating sphere-equipped optical measurement device
US-2018266918-A1 · Sep 20, 2018 · US
Mode-dependent loss measurement method and measurement device
US-2018202895-A1 · Jul 19, 2018 · US