Use of higher order modulation techniques to transmit information on passbands of a dispersion-limited fiber link
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United States of America Patent
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Mar 26, 2002
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app pub date -
Oct 30, 1998
filing date -
Oct 30, 1998
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Abstract
Systems and methods employing higher order modulation techniques to transmit information on passbands of a dispersion-limited fiber optic communication link. The present invention transmits data on previously unused passbands of the dispersion-limited optic link, thus increasing the total capacity of the link. Higher order modulated carrier frequencies (M-ary ASK, PSK, QAM, etc.) centered within the higher passbands are transmitted using the present invention. Thus, the present invention combines a multiplicity of encoded carriers into a composite microwave spectrum that is tailored to the passbands of the optical link.
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