Ultrahigh resolution photonic spectral processor
US10914633B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Mar 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/676
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are a method for achieving ultrahigh spectral resolution and a photonic spectral processor, which is designed to carry out the method. The disclosed photonic spectral processor overcomes the current 0.8 GHz spectral resolution limitation. The new spectral processor uses a Fabry-Perot interferometer array located before the dispersive element of the system, thus significantly improving the spectral separation resolution, which is now limited by the full width at half maximum of the Fabry-Perot interferometer rather than the spectral resolution of the dispersive element spectral as is the current situation. A proof of concept experiment utilizing two Fabry-Perot interferometers and a diffractive optical grating with spectral resolution of 6.45 GHz achieving high spectral resolution of 577 MHz is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.