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US 6,618,193 B1Granted
Optical amplification systems and methods
AssigneeNortel Networks Limited
InventorDavid W. Boertjes
Life of this patent
Estimating the term…
Abstract
Optical amplification systems and methods are disclosed. A first optical amplification system includes an optical interface filter configured to separate a desired communications band from at least one other communications band, and an optical amplifier in communication with the interface filter for amplifying the desired communications band. The optical amplifier includes at least one suppression filter configured to attenuate a wavelength subset of the at least one other communications band nearest the desired communications band and narrower than the at least one other communications band.
Claims24
An optical amplification system comprising:
- an optical interface filter configured to separate a desired communications band from at least two other communications bands, wherein said at least two other communications bands comprise a first other communications band of longer wavelengths than said desired communications band and a second other communications band of shorter wavelengths than said desired communications band, and wherein said interface filter is configured to separate said desired communications band from said first other and said second other communications bands;
- and
- an optical amplifier in communication with said interface filter for amplifying said desired communications band, said optical amplifier comprising at least one suppression filter configured to attenuate a wavelength subset of one of said at least two other communications bands nearest said desired communications band and narrower than said one of said at least two other communications bands.
An optical amplification system comprising:
- means for separating a desired communications band from at least two other communications bands, wherein said at least two other communications bands comprise a first other communications band of longer wavelengths than said desired communications band and a second other communications band of shorter wavelengths than said desired communications band, and wherein said means for separating comprises means for separating said desired communications band from said first other and said second other communications bands;
- and
- means for amplifying said desired communications band, said means for amplifying comprising means for attenuating a wavelength subset of one of said at least two other communications bands nearest said desired communications band and narrower than said one of said at least two other communications bands.
An optical amplification method comprising:
- separating a desired communications band from at least two other communications bands, wherein said at least two other communications bands comprise a first other communications band of longer wavelengths than said desired communications band and a second other communications band of shorter wavelengths than said desired communications band, and wherein separating comprises separating said desired communications band from said first other and said second other communications bands;
- and
- amplifying said desired communications band while attenuating a wavelength subset of one of said at least two other communications bands nearest said desired communications band and narrower than said one of said at least two other communications bands.
An optical amplification system comprising:
- an optical interface filter configured to separate a desired communications band from at least one other communications band;
- and
- an optical amplifier in communication with said interface filter for amplifying said desired communications band, said optical amplifier comprising at least one suppression filter configured to attenuate a wavelength subset of said at least one other communications band nearest said desired communications band and narrower than said at least one other communications band, wherein said at least one suppression filter comprises a dielectric interference filter.
An optical amplification system comprising:
- means for separating a desired communications band from at least one other communications band;
- and
- means for amplifying said desired communications band, said means for amplifying comprising means for attenuating a wavelength subset of said at least one other communications band nearest said desired communications band and narrower than said at lest one other communications band, wherein said means for attenuating comprises a dielectric interference filter.
An optical amplification method comprising:
- separating a desired communications band from at least one other communications band;
- and
- amplifying said desired communications band while attenuating a wavelength subset of said at least one other communications band nearest said desired communications band and narrower than said at least one other communications band, wherein attenuating comprises reflecting said subset at a dielectric interference filter.
Dependencies are inferred from the claim text.