Fused vertical coupler for switches, filters and other electro-optic devices
US6385376B1 · kind B1 · utility
36Cited by
15References
26Claims
0Family size
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Key dates
| Filing date | Oct 22, 1999 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vertical directional coupler fabricated using wafer fusion with a very short coupling length for fabrication of switches, filters and other electro-optic devices. Using the fused vertical coupler, planar waveguides can be fabricated on two different substrates in a three-dimensional structure in which there is vertical coupling between arrays through fused regions. Switches, including crossbar switches based on coupling between independent arrays of waveguides, as well as filters, can be fabricated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.