System and method for selective wavelength interleaved filtered technique (SWIFT) ADC
US8466819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Sep 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/121
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method for selective wavelength interleaved filtering technique for analog to digital conversion (ADC) comprises a remote aperture for analog input, a modulator operable to transform the analog input into an initial optical signal, a photonic front end having high resolution optical filters operable to filter the optical signal into multiple subsequent optical signals and supply local oscillators for downconversion into electrical signals, a segmented subsystem having a plurality of ADCs, each operable to receive and convert one subsequent optical signal of the optical signals, and a memory buffer and process subsystem operable to reconstruct the converted subsequent optical signals into a digital representation of the analog input by executing reconstruction algorithms. Provision is made for compensation of distortions arising in the electrical to optical to electrical conversion process. The optical filters can include a self-registered filter wherein individual passbands are intrinsically aligned to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.