Optical gain flattening components, optical chips and optical amplifiers and methods employing same
US7295365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2005 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Oct 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2941
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical component for gain-flattening multiplexed passband signals amplified with optical pump power, comprises a launch port optical waveguide operative to communicate multiplexed passband signals in a passband wavelength range and optical pump power in a different wavelength range; a thin film demux filter oriented to receive combined multiplexed passband signals and optical pump power from the launch port optical waveguide, and operative to pass the multiplexed passband signals and to reflect the optical pump power; a bypass port optical waveguide operative and oriented to receive and carry optical pump power reflected by the demux filter; a gain-flattening filter positioned to receive from the thin film demux filter and operative to pass the multiplexed passband signals with a desired attenuation profile for gain-flattening; and an output port optical waveguide oriented to receive and operative to carry at least multiplexed passband signals passed by the gain-flattening filter. Also disclosed are optical amplifiers comprising such GFF components. Also disclosed are optical filters comprising an optical substrate, a thin film demux filter on a first surface of the optical sub…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.