Double optical grating
US8422841B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/4272
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and system for providing an optical grating are described. The optical grating is configured for light of a wavelength. The optical grating includes a top cladding, a first plurality of discrete ridges forming a first grating, a core, a second plurality of discrete ridges forming a second grating, and a bottom cladding. The first plurality of discrete ridges are spaced apart by a first pitch. The second plurality of discrete ridges are spaced apart by a second pitch. The core has a top side adjacent to at least a portion of the top cladding and a bottom side. The bottom cladding is adjacent to at least a portion of the bottom side of the core. The second grating resides between the bottom cladding and the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.