Highly doped d-shaped fiberoptic probe for hydrophone applications
US10883870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2019 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Nov 5, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/262
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The fiber optic probe detects changes in ultrasound pressure in an immersion medium such as a liquid, a gas, or a solid, where the system includes an optical fiber probe having a fiber of the probe has a highly doped (or regular) core with a diameter in the range 5 to 10 μm and a clad diameter equal to or more than 50 μm; and the optical fiber tip has been modified in a D-shaped (or V-shaped) structure where the clad material has been removed from one side of the cylindrical fiber to the surface of the fiber core; then, this modified region of the fiber is coated, with a very thin layer of a metallic material, ranging from 3 to 10 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.