Back to results
US 7,127,182 B2Granted
Efficient optical transmission system
AssigneeBroadband Royalty Corporation
InventorsPaul J. Matthews, Paul D. Biernacki, Sandeep T. Vohra
Life of this patent
Estimating the term…
Abstract
A transmitter for optical communication systems includes a source of optical radiation, a source of complex non-information signals, and a modulator unit in communication with the source of optical radiation. The modulator unit is also in communication with the source of complex non-information signals. The modulator has an input adapted to receive information-bearing signals.
Claims50
A transmitter for optical communication systems, compnsing:
- a source of optical radiation;
- a source of complex non-information signals;
- a modulator unit in communication with said source of optical radiation, in communication with said source of complex non-information signals, and further having an input adapted to receive information-bearing signals;
- wherein an output spectrum of said transmitter comprises
- baseband signals having a spectral distribution on a low end of said spectrum,
- upconverted complex non-information signals having a spectral distribution on a high end of the spectrum, and
- information bearing signals having a spectral distribution in a middle of said spectrum.
4 more elements
An optical communication system comprising:
- an optical transmission line;
- a transmitter in communication with said optical transmission line;
- and
- a receiver in communication with the optical transmission line,
- wherein the transmitter comprises:
- a source of optical radiation;
- a source of complex non-information signals;
- and
- a modulator unit in communication with said source of optical radiation, in communication with said source of complex non-information signals, and further having an input adapted to receive information-bearing signals, wherein
- an output spectrum of said transmitter comprises
- baseband signals having a spectral distribution on a low end of said spectrum,
- upconverted complex non-information signals having a spectral distribution on a high end of the spectrum, and
- information bearing signals having a spectral distribution in a middle of said spectrum.
10 more elements
A method of transmitting information in an optical communication system, comprising:
- generating a beam of light;
- modulating said beam of light responsive to a complex non-information signal;
- and
- modulating said beam of light responsive to an information signal, wherein
- said complex non-information signal has a first signal spectrum and said information signal has a second signal spectrum, said first and second signal spectra being substantially non-overlapping in a frequency domain;
- and
- an output spectrum of said transmitted information comprises
- baseband signals having a spectral distribution on a low end of said spectrum,
- upconverted complex non-information signals having a spectral distribution on a high end of the spectrum, and
- information bearing signals having a spectral distribution in a middle of said spectrum.
7 more elements
Dependencies are inferred from the claim text.