Method, device, and system for waveform shaping of signal light
First Claim
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1. A method comprising the steps of:
- supplying signal light to a first waveform shaper to obtain intermediate signal light;
dividing said intermediate signal light into first and second signal lights;
supplying said first signal light to a clock recovery circuit to obtain a clock pulse; and
supplying said second signal light and said clock pulse to a second waveform shaper to obtain regenerated signal light synchronous with said clock pulse.
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Abstract
The present invention relates to a method for waveform shaping of signal light. This method includes the steps of supplying signal light to a first waveform shaper to obtain intermediate signal light, dividing the intermediate signal light into first and second signal lights, supplying the first signal light to a clock recovery circuit to obtain a clock pulse, and supplying the second signal light and the clock pulse to a second waveform shaper to obtain regenerated signal light synchronous with the clock pulse.
22 Citations
31 Claims
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1. A method comprising the steps of:
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supplying signal light to a first waveform shaper to obtain intermediate signal light;
dividing said intermediate signal light into first and second signal lights;
supplying said first signal light to a clock recovery circuit to obtain a clock pulse; and
supplying said second signal light and said clock pulse to a second waveform shaper to obtain regenerated signal light synchronous with said clock pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device comprising:
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a first waveform shaper for accepting signal light to output intermediate signal light;
an optical branch for dividing said intermediate signal light into first and second signal lights;
a clock recovery circuit for accepting said first signal light to output a clock pulse; and
a second waveform shaper for accepting said second signal light and said clock pulse to output regenerated signal light synchronous with said clock pulse. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system comprising:
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a first optical fiber transmission line for propagating signal light;
an optical regenerator connected to said first optical fiber transmission line for converting said signal light into regenerated signal light; and
a second optical fiber transmission line connected to said optical regenerator for propagating said regenerated signal light;
said optical regenerator comprising;
a first waveform shaper for accepting said signal light to output intermediate signal light;
an optical branch for dividing said intermediate signal light into first and second signal lights;
a clock recovery circuit for accepting said first signal light to output a clock pulse; and
a second waveform shaper for accepting said second signal light and said clock pulse to output said regenerated signal light. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A method comprising the steps of:
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converting WDM signal light obtained by wavelength division multiplexing a plurality of optical signals having different wavelengths into an optical time division multiplexed signal;
obtaining a clock pulse having a frequency corresponding to the speed of each of said plurality of optical signals; and
supplying said optical time division multiplexed signal and said clock pulse to a waveform shaper to obtain regenerated signal light. - View Dependent Claims (28, 29, 30, 31)
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Specification