Waveguide input/output device
US5835643A · kind A · utility
15Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Sep 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/302
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide input/output device for input and output of laser light L into a thin-film waveguide 2 via an input grating or prism 7 and an output or emission grating 8. The height of the emission grating 8 is gradually increased in a travel direction of a light advancing through the waveguide and either the height of the input grating 7 or the height of the output grating 8 is gradually increased in the direction of propagation of the service elastic waves in the waveguide 3 generated by a transducer element 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.