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US 2003/0113058 A1Published application
Control system for dynamic gain equalization filter
OwnerJohn William Stayt JR.inventor
Life of this patent
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Abstract
A control system including an optical filter, an optical amplifier coupled to the optical filter, an optical channel monitor coupled to the optical filter, and a controller coupled to the optical channel monitor and the optical filter. The control system monitors the state of a plurality of filter elements within the optical filter, and adjusts power to the filter elements as needed.
Claims22
A control system comprising:
- an optical filter including at least one filter element;
- an optical amplifier coupled to the optical filter;
- an optical sensing device coupled to the optical filter;
- and,
- a secondary control system coupled to the optical sensing device and the optical filter.
2 more elements
A method controlling the gain of an optical filter, comprising the steps of:
- transmitting a signal from an optical filter to an optical amplifier;
- monitoring the output of the optical amplifier;
- providing feedback to a secondary control system coupled to the optical filter, said feedback indicating an output voltage of at least one element of the optical filter.
A method controlling an optical filter, comprising the steps of:
- setting an initial state of a control system for controlling the optical filter;
- setting an optical spectrum profile for the optical filter to either an initial profile or a stored profile;
- compensating for ambient temperature changes;
- and,
- initializing a power controller for controlling the power applied to different elements of the optical filter.
2 more elements
An optical transmission system comprising:
- a plurality of optical transmission lines coupled to a wave division multiplexer, said wave division multiplexer selectively transmitting a plurality of optical signals to an optical filter;
- an optical amplifier coupled to the optical filter;
- an optical sensing device coupled to the optical filter;
- and,
- a secondary control system coupled to the optical sensing device and the optical filter.
2 more elements
Dependencies are inferred from the claim text.