Optical coupling
US7076133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2001 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29323
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to the coupling of light to and from an optical waveguide, such as an optical fiber. Light of a specific wavelength is deflected out from the fiber, or into the fiber, in a substantially transverse direction with respect to the propagation direction of light in the waveguide, by a deflector 16 arranged in the fiber core 10. Wavelength selectivity of the deflector 16 is provided by a Bragg grating means located in the fiber core 10. The deflected light is collimated, or converged towards a focus, by an interface 15 between a cladding 11, having one index of refraction, and an outer medium 12, having another index of refraction. The ratio between the radius of the cladding 11 and the radius of the core 10 made sufficiently small for the collimating, or converging, effect to appear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.