Hollow core waveguide with optimized contour
US9810837B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 4, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jun 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02347
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide with a hollow core (16) delimited by a closed contour includes a succession of arcs (20) of negative curvature, each arc including a chord (24), characterized in that the contour of the hollow core (16) includes small arcs (PA) and large arcs (GA) arranged alternately, each arc (20) being symmetric with respect to a straight line passing through the center (18) of the hollow core (16) and the middle of the chord (24) thereof, the ratio b=2Ra/C of the large arcs being greater than 0.9 for the large arcs (GA), Ra corresponding to the maximum distance between the chord (24) and the arc (20), C corresponding to the length of the chord (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.