Programmable, differential wavelength discriminator
US5548671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Oct 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12164
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A programmable wavelength discriminator for isolating individual wavelength carriers from an optical signal including a plurality of wavelength carriers. The discriminator preferably has a pair of waveguides, with each waveguide having imprinted therein a reflecting grating whose period is chosen to reflect the wavelength to be isolated. A receiver such as a photodetector interrogates the selected wavelength. A programmable optical switch determines through which waveguide the composite optical signal will travel. A method of isolating discrete wavelengths from an optical signal comprising a plurality of wavelengths is also discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.