CMOS-compatible tunable microwave photonic band-stop filter
US8014676B2 · kind B2 · utility
5Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Feb 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a microwave photonic band-stop (MPBS) filter uses an electrical input signal to drive an optical Mach-Zehnder modulator. A modulated optical carrier produced by the modulator is applied to an optical filter having at least two tunable spectral attenuation bands that are located substantially symmetrically on either side of the carrier frequency. The resulting filtered optical signal is applied to an optical-to-electrical (O/E) converter to produce an electrical output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.