Measuring device for polarization-maintaining optical fiber spindle differential delay
US11159233B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2021 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Mar 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/503
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A measurement device for polarization-maintaining optical fiber spindle difference delay is provided. The measurement device comprises a polarization-maintaining fiber (PM) Sagnac interferometer, a signal generator, a microwave detector, a microprocessor. The PM Sagnac interferometer comprises a laser, a photoelectric modulator, and a PM fiber coupler that are connected in sequence. The PM Sagnac interferometer further comprises an optical fiber interface J1 and an optical fiber interface J2 arranged at the two output ends of the PM fiber coupler, a PM fiber to be measured located between the fiber interface J1 and the fiber interface J2, and a photodetector arranged at the other output end of the PM fiber coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.