Carrier density-based tunable filter
US9817251B1 · kind B1 · utility
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4References
19Claims
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Key dates
| Filing date | May 2, 2016 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | May 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/055
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical filter comprising a first distributed Bragg reflector (DBR) layer, a second DBR layer, and an intrinsic semiconductor layer positioned between the first DBR layer and the second DBR layer, with the intrinsic semiconductor layer providing a passband wavelength for the optical filter based on a carrier density of the intrinsic semiconductor layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.