Planar polymeric waveguide devices with temperature dependence control features
US6684019B1 · kind B1 · utility
4Cited by
6References
15Claims
0Family size
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Key dates
| Filing date | Feb 22, 2000 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Feb 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical signal device which is temperature sensitive and has at least one waveguide layer and at least one material incorporated into the device having a coefficient of thermal expansion of from about 20 to 200 ppm/°K sufficient to impart tensile stress to the waveguide layers as the temperature of the optical signal device changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.