Variable tilt equalization device and variable tilt equalization method
AssigneeNEC Corporation
InventorKoji Inada
Life of this patent
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Abstract
According to the present invention, a variable tilt equalization device includes a first variable tilt equalizer including a plurality of first tilt equalizers, a second variable tilt equalizer including a plurality of second tilt equalizers, a first matrix switch being a multi-input/multi-output matrix switch connected to an input side of the first variable tilt equalizer, a second matrix switch being a multi-input/multi-output matrix switch configured to connect an output side of the first variable tilt equalizer and an input side of the second variable tilt equalizer to each other via a plurality of optical paths, and a third matrix switch being a multi-input/multi-output matrix switch connected to an output side of the second variable tilt equalizer.
Claims20
A variable tilt equalization device comprising:
- a first variable tilt equalizer including a plurality of first tilt equalizers;
- a second variable tilt equalizer including a plurality of second tilt equalizers;
- a first matrix switch being a multi-input/multi-output matrix switch connected to an input side of the first variable tilt equalizer;
- a second matrix switch being a multi-input/multi-output matrix switch configured to connect an output side of the first variable tilt equalizer and an input side of the second variable tilt equalizer to each other via a plurality of optical paths;
- and
- a third matrix switch being a multi-input/multi-output matrix switch connected to an output side of the second variable tilt equalizer.
A variable tilt equalization method comprising:
- receiving first input signal light and second input signal light;
- selecting a first gain tilt amount, a second gain tilt amount, a third gain tilt amount, and a fourth gain tilt amount from a plurality of gain tilt amounts;
- adjusting a tilt of an optical intensity profile of the first input signal light with the first gain tilt amount and outputting first signal light;
- adjusting a tilt of an optical intensity profile of the second input signal light with the second gain tilt amount and outputting second signal light;
- adjusting a tilt of an optical intensity profile of the first signal light with the third gain tilt amount and outputting first output signal light;
- and
- adjusting a tilt of an optical intensity profile of the second signal light with the fourth gain tilt amount and outputting second output signal light.
Dependencies are inferred from the claim text.