Bidirectional optical-carrying microwave resonance system based on circulator structure and method for detecting angular velocity by said system
US11874113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2021 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Jun 5, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/283
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bidirectional optical-carrying microwave resonance system based on a circulator structure and a method for detecting angular velocity by said system. A high-stability optical-carrying microwave of which polarization states in forward and reverse directions are perpendicular is generated in an optical fiber ring by utilizing a regenerative mold locking technology, a cavity length control technology, and a polarization state separation technology, and the optical-carrying microwave is used for measuring a rotational angular velocity. The circulator structure is adopted and the bidirectional optical-carrying microwave resonance is achieved by means of a bidirectional regenerative mode locking technology. A reciprocal bidirectional optical-carrying microwave resonance system is achieved on the basis of a non-reciprocal error elimination technology of a wide-spectrum optical interferometer. The polarization state separation technology is adopted to achieve dual-wavelength separation of optical signals and the perpendicular polarization state is adopted for opposite transmission in a sensitive ring, so that the detection capability of the sensitive ring is improved. The cavity length c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.