Multi-mode pump laser based multi-wavelength entangled photon pair generation device and quantum key distribution network configuration method using the same
US-12386236-B1 · Aug 12, 2025 · US
This page is not indexed by search engines while we improve data quality.
of Sagnac type, i.e. nonlinear optical loop mirror [NOLM]
of Sagnac type, i.e. nonlinear optical loop mirror [NOLM] · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F1/3519 |
| Official title | {of Sagnac type, i.e. nonlinear optical loop mirror [NOLM]} |
| Display label | of Sagnac type, i.e. nonlinear optical loop mirror [NOLM] |
| Total patents | 23 |
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 | 5 |
| 2016 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and Apparatus for Optical Information Processing
US-2024412057-A1 · Dec 12, 2024 · US
Fiber optic gyroscope with optical gating for spike suppression
US-2024401950-A1 · Dec 5, 2024 · US
Method for generating ultrashort pulses
US-12003071-B2 · Jun 4, 2024 · US
Federated quantum computing distributed architecture
US-11907804-B2 · Feb 20, 2024 · US
Wavelength converter and fiber optic transmission system
US-11387912-B2 · Jul 12, 2022 · US
Federated quantum computing distributed architecture
US-2022215279-A1 · Jul 7, 2022 · US
Wavelength converter and fiber optic transmission system
US-2022158741-A1 · May 19, 2022 · US
Method for generating ultrashort pulses
US-2021175677-A1 · Jun 10, 2021 · US
Cladding-pumped waveguide optical gyroscope
US-11022440-B2 · Jun 1, 2021 · US
Optical apparatus
US-10705355-B2 · Jul 7, 2020 · US
Cladding-pumped waveguide optical gyroscope
US-10563986-B2 · Feb 18, 2020 · US
Cladding-pumped waveguide optical gyroscope
US-2020003561-A1 · Jan 2, 2020 · US
Optical-signal processing apparatus, optical transmission method, receiver, and optical network system
US-10193629-B2 · Jan 29, 2019 · US
Cladding-pumped waveguide optical gyroscope
US-2018364044-A1 · Dec 20, 2018 · US
Optical Apparatus
US-2018101033-A1 · Apr 12, 2018 · US
Rotation-sensitive semiconductor ring laser device using the nonlinear Sagnac effect
US-9354062-B2 · May 31, 2016 · US
Optical-signal processing apparatus, optical transmission method, receiver, and optical network system
US-2016006508-A1 · Jan 7, 2016 · US
Methods and systems for nonlinear optical wave-mixing
US-9223187-B2 · Dec 29, 2015 · US
Optical-signal processing apparatus, optical transmission method, receiver, and optical network system
US-9182649-B2 · Nov 10, 2015 · US