System and method for reducing differential mode dispersion effects in multimode optical fiber transmissions
AssigneeUniversity of Maryland, Baltimore County
InventorFow-Sen Choa
Life of this patent
Estimating the term…
Abstract
A system and method for compensating for unwanted modes in multimode fiber transmissions includes a detector that receives an optical signal transmitted through a multimode optical fiber and converts the transmitted optical signal to a detector signal, an adaptive equalizer that generates an adaptive equalizer signal that, when combined with the detector signal, compensates for unwanted modes in the detector signal, and an adder that combines the adaptive equalizer signal with the detector signal.
Claims30
A system for compensating for unwanted modes in multimode fiber transmissions, comprising:
- a detector that receives an optical signal transmitted through a multimode optical fiber and converts the transmitted optical signal to a detector signal;
- and
- an adaptive equalizer that generates an adaptive equalizer signal that, when combined with the detector signal, compensates for unwanted modes in the detector signal.
A system for compensating for unwanted modes in multimode fiber transmissions, comprising:
- detector means for receiving an optical signal transmitted through a multimode optical fiber and converting the transmitted optical signal to a detector signal;
- and
- equalizer means for generating an equalizer signal that, when combined with the detector signal, compensates for unwanted modes in the detector signal.
A system for compensating for differential mode dispersion effects in multimode fiber transmissions, comprising:
- a detector that receives an optical signal transmitted through a multimode optical fiber and converts the transmitted optical signal to a detector signal;
- a decision element that receives the detector signal, determines a symbol represented by the detector signal, and outputs the determined symbol as an output signal;
- an adaptive equalizer that receives at least a portion of the output signal as a feedback signal and generates an adaptive equalizer signal based on the feedback signal;
- and
- an adder that combines the detector signal with the adaptive equalizer signal, thereby compensating for unwanted modes in the detector signal caused by differential mode dispersion in the multimode optical fiber.
A fiber optic data channel, comprising:
- a multimode optical fiber that transmits an optical signal;
- a detector that receives the optical signal transmitted through the multimode optical fiber and converts the transmitted optical signal to a detector signal;
- an adaptive equalizer that generates an adaptive equalizer signal that, when combined with the detector signal, compensates for unwanted modes in the detector signal;
- and
- an adder that combines the adaptive equalizer signal with the detector signal.
A method of compensating for unwanted modes in multimode fiber transmissions, comprising the steps of:
- converting an optical signal transmitted through a multimode optical fiber to an electrical signal;
- generating an equalizer signal that, when combined with the electrical signal, reduces unwanted modes in the electrical signal;
- and
- combining the equalizer signal with the electrical signal.
Dependencies are inferred from the claim text.