Crosstalk suppression in a multi-photodetector optical channel monitor
US9755738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2014 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Dec 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3548
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes an optical port array having first and second optical inputs for receiving optical beams and a first plurality of optical outputs associated with switching functionality and a second plurality of optical outputs associated with channel monitoring functionality. A dispersion element receives the optical beam from an input and spatially separates the beam into a plurality of wavelength components. The focusing element focuses the wavelength components. The optical path conversion system receives the plurality of wavelength components and selectively directs each one to a prescribed one of the optical ports. The photodetectors are each associated with one of the optical outputs in the second plurality of optical outputs and receive a wavelength component therefrom. The controller causes the optical path conversion system to simultaneously direct each of the wavelength components to a different one of the optical outputs of the second plurality of optical outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.