Optical waveguide and method of manufacturing same
US6671446B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A plurality of top waveguides and bottom waveguides are formed on a substrate. The pitch of the light exit end of the top waveguide and the light exit end of the bottom waveguide at the light exit side of the substrate is narrower than the pitch of the light entrance end of the top waveguide and the light entrance end of the bottom waveguide at the light entrance side of the substrate. The light exit end of the waveguide on the light exit side of the substrate and the light exit end of the waveguide indicated by the dashed line are arranged as single rows forming a core row in two layers in a staggered layout. This optical waveguide produces ideally overlapping laser beam spots on the surface of a photosensitive body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.