Optical waveguide device and manufacturing method therefor
US6055349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jul 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12019
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device and manufacturing method therefor relate to a slab optical waveguide, a first optical waveguide, a plurality of second optical waveguides and a reflector. The slab optical waveguide has first and second ends. The first optical waveguide is optically connected to the first end of the slab optical waveguide. The plurality of second optical waveguides each have first and second guide bars with the first guide bars being optically connected to the second end of the slab optical waveguide and the second guide bars being optically connected to the first guide bars. The second guide bars may have a width greater than that of the first guide bars. The reflector is optically connected to each of the second guide bars of the second optical waveguides. The reflector may be formed on an end face on each of the second guide bars substantially perpendicular to an optical axis of the respective first guide bars. The first guide bars may have a refractive index temperature coefficient different in sign from that of the second guide bars. Instead of providing a guide bar for each second optical waveguide, a continuous polymeric block may substantially cover the end faces of all of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.