Optical fibers having metallic micro/nano-structure on end-facet, and fabrication method, and application method thereof
US11022752B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2015 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jan 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1809
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical fiber having metallic micro/nano-structure on end-facet, and a fabrication method and an application method thereof. The metallic micro/nano-structure is a micro-nano structure resonance cavity on a metallic film, and generates surface plasmon resonance when an optical fiber guided wave is incident. In the fabrication method according to the present invention, the metallic micro/nano-structure on the surface of the substrate is aligned with and is adhered to the end-facet of the optical fiber, and is removed for transferring to the end-facet of the optical fiber. In the application method according to the present invention, the end-facet of the optical fiber is contacted with or moved towards a medium, and a refractive index of the medium is measured by measuring reflection of an optical fiber guided wave by the metallic micro/nano-structure resonance cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.