Polarization scrambling for intra-body fiber optic sensor
US9936881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2013 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Oct 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/35354
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an example, an optical system can include a polarization scrambler coupleable to a tunable first optical source configured to generate a coherent optical output. The system can include an intra-body optical sensor such as a an intravascularly-deliverable optical fiber transducer, configured to be coupled to the tunable first optical source through the polarization scrambler, the polarization scrambler configured to vary a polarization state of the optical energy provided by the tunable first optical source, the intravascularly-deliverable optical fiber transducer configured to reflect a portion of the optical energy modulated in response to a vibration, pressure, or strain. The system can include a processor circuit configured to obtain information indicative of the optical energy reflected from the intravascularly-deliverable optical fiber transducer, and to process information from the vibration, pressure, or strain modulating the optical energy from the intravascularly-deliverable optical fiber transducer using different polarization states established by the polarization scrambler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.