Optical transmitter with sbs suppression
AssigneeOptium Corporation
InventorsThomas R. Frederiksen, Stephen B. Krasulick
Life of this patent
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Abstract
An optical transmitter and methods of generating an optical signal having SBS suppression are described. An optical transmitter having SBS suppression according to the present invention includes a signal generator that generates a SBS suppression signal. A laser generates a line width broadened optical signal having AM noise. A signal processor generates a modified SBS suppression signal from the SBS suppression signal. A modulator modulates the line width broadened optical signal having the AM noise with a payload modulation signal and with the modified SBS suppression signal to generate a payload modulated optical signal having SBS suppression and reduced AM noise.
Claims21
1-39. (canceled)
An optical transmitter having SBS suppression, the optical transmitter comprising:
- a) a signal generator that generates a SBS suppression signal at an output;
- b) a laser having an electrical input that is electrically coupled to the output of the signal generator, the laser generating an optical signal at an output having a line width that is broadened by the SBS suppression signal;
- c) a signal processor having an electrical input that is electrically coupled to the output of the signal generator, the signal processor generating a modified SBS suppression signal at an output;
- and
- d) a modulator that is optically coupled to the output of the laser and that is electrically coupled to the output of the signal processor, the modulator modulating the optical signal with a payload modulation signal and with the modified SBS suppression signal, thereby generating a payload modulated optical signal having SBS suppression that is determined by the modified SBS suppression signal.
A method of generating a modulated optical signal having SBS suppression, the method comprising:
- a) generating a SBS suppression signal;
- b) modulating an optical signal with the SBS suppression signal, thereby generating a line width broadened optical signal;
- c) generating a modified SBS suppression signal from the SBS suppression signal;
- and
- d) modulating the line width broadened optical signal with a payload modulation signal and with the modified SBS suppression signal, thereby generating a payload modulated optical signal having SBS suppression determined by the modified SBS suppression signal.
An optical transmitter comprising:
- a) means for generating a SBS suppression signal;
- b) means for modulating an optical signal with the SBS suppression signal, thereby generating a line width broadened optical signal;
- c) means for generating a modified SBS suppression signal from the SBS suppression signal;
- and
- d) means for modulating the line width broadened optical signal with a payload modulation signal and with the modified SBS suppression signal, thereby generating a payload modulated optical signal having SBS suppression, wherein the modified SBS suppression signal reduces AM noise in the payload modulated optical signal.
Dependencies are inferred from the claim text.