All-optical, 3R regeneration using the sagnac and mach-zehnder versions of the terahertz optical asymmetric demultiplexer (TOAD)
First Claim
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1. A method for regenerating optical signals comprising:
- recovering a clock signal from a degraded optical signal;
applying the clock signal to a clock port of a first optical gating device;
applying the degraded optical signal to an input port of first optical gating device;
generating a retimed optical signal at the output of the first optical gating device;
applying the retimed optical signal to the clock input of a second optical gating device;
applying a continuous wave (CW) laser signal to the input of the second optical gating device; and
generating a regenerated optical signal at the output of the second optical gating device.
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Abstract
A system and method for regenerating optical signals comprising a clock recovery circuit coupled to a transmission line, a first optical gating device having an input port coupled to the transmission line and a clock port coupled to the clock recovery circuit, and a second optical gating device having an input port coupled to a continuous wave (CW) laser and a clock port coupled to the output of the first optical gating device, wherein the optical gating devices may be terahertz optical asymmetric demultiplexers (TOADs).
8 Citations
18 Claims
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1. A method for regenerating optical signals comprising:
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recovering a clock signal from a degraded optical signal;
applying the clock signal to a clock port of a first optical gating device;
applying the degraded optical signal to an input port of first optical gating device;
generating a retimed optical signal at the output of the first optical gating device;
applying the retimed optical signal to the clock input of a second optical gating device;
applying a continuous wave (CW) laser signal to the input of the second optical gating device; and
generating a regenerated optical signal at the output of the second optical gating device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for regenerating optical signals comprising:
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a clock recovery circuit coupled to a transmission line;
a first optical gating device having an input port coupled to the transmission line and a clock port coupled to the clock recovery circuit; and
a second optical gating device having an input port coupled to a continuous wave (CW) laser and a clock port coupled to the output of the first optical gating device. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of regenerating optical signals comprising:
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simultaneously receiving a plurality of channels over an optical transmission medium;
extracting a clock timing signal from the channels;
providing the plurality of channels and the clock timing signal as inputs to a first a terahertz optical asymmetric demultiplexer (TOAD);
generating a plurality of retimed signals from the first TOAD, wherein each of the retimed signals correspond to one of the plurality of channels;
demultiplexing the retimed signals into a plurality of separate signals;
providing one of the plurality of separate signals and one of a plurality of continuous wave (CW) laser signals as inputs to one of a plurality of second TOADs;
generating reshaped and reamplified signals at the output of the second TOADs, wherein each of the reshaped and reamplified signals has a wavelength corresponding to a corresponding one of the plurality of CW laser signals.
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- 15. The method of claim 15 wherein each of the plurality of channels has a different wavelength.
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