Optical amplifying transmission system and optical amplifying repeater
AssigneeKDD Corporation
InventorsNoboru Edagawa, Shu Yamamoto, Shigeyuki Akiba
Life of this patent
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Abstract
An optical amplifying transmission system comprising a first optical amplifying transmission line including a first optical amplifier, a second optical amplifying transmission line including a second optical amplifier, a pumping light generator for generating pumping lights to be supplied to said first and second amplifiers, the powers of the pumping lights being variable, and first and second terminal stations which connect respectively to both ends of said first and second optical amplifying transmission lines.
Claims14
An optical amplifying transmission system for changeable ratio of transmission comprising:
- a first optical amplifying transmission line including a first optical amplifier;
- a second optical amplifying transmission line including a second optical amplifier;
- a pumping light generator for generating pumping lights to be supplied to said first and second amplifiers, at least one of the pumping lights being variable;
- first and second terminal stations which connect respectively to both ends of said first and second optical amplifying transmission lines;
- a divider for dividing pumping Power control command light propagating on said first optical amplifying transmission line;
- and
- a controller for controlling power ratio of the pumping lights that are supplied to said first and second optical amplifiers from said pumping light generator in accordance with pumping power control command light divided by said divider.
An optical amplifying repeater comprising:
- a first optical amplifier to be disposed on a first
- optical transmission line;
- a second optical amplifier to be disposed on a second optical transmission line;
- a pumping light generator for generating pumping light to be supplied to said first and second optical amplifiers;
- and
- a controller for controlling power ratio of pumping lights that are supplied to said first and second optical amplifiers from said pumping light generator in accordance with an external pumping power control command.
Dependencies are inferred from the claim text.