Low crosstalk reversed .DELTA..beta. electrodes for directional coupler switch
US4865408A · kind A · utility
12Cited by
5References
14Claims
0Family size
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Key dates
| Filing date | Jan 9, 1989 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Jan 9, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Crosstalk for a directional coupler switch employing a reversed .DELTA..beta. electrode structure is reduced to a minimum by properly placing electrode sections over the waveguides to compensate interwaveguide coupling preceding an electrode section with interwaveguide coupling following the electrode section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.