Optical transmitter using highly nonlinear fiber and method
OwnerKatsumi Uesakainventor
Life of this patent
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Abstract
An optical transmitter for compensating signal distortion, the optical transmitter includes an input for accepting a signal, a laser driver for amplifying and/or reshaping the signal, a distributed feedback laser diode coupled to the laser driver for modulating the signal, a highly nonlinear fiber coupled to the distributed feedback laser diode for compensating signal distortions caused by the laser diode, and an output for sending the signal to the transmission link.
Claims72
An optical transmitter comprising:
- an input for inputting a signal;
- a laser diode for modulating the signal;
- a highly nonlinear fiber coupled to the laser diode, wherein the highly nonlinear fiber compensates for signal distortions caused by the laser diode;
- and
- an output for outputting the signal.
An optical transmitter comprising:
- an input for inputting a signal;
- a distributed feedback laser diode for modulating the signal;
- a highly nonlinear dispersion shifted fiber coupled to the distributed feedback laser diode wherein the highly nonlinear dispersion shifted fiber compensates for frequency chirping caused by the distributed feedback laser diode;
- and
- an output for outputting the signal.
A transmitter having a modulated signal, comprising:
- a highly nonlinear dispersion shifted fiber for compensating frequency chirp in the signal.
An optical transmitter system comprising:
- an input for inputting a signal;
- an external modulator for modulating the signal;
- a highly nonlinear fiber coupled to the external modulator, wherein the highly nonlinear fiber induces proper frequency chirping for the external modulator;
- and
- an output for outputting the signal.
An optical transmission system comprising:
- an optical transmitter having an input for accepting a signal and an output for sending the signal, the optical transmitter having a laser diode for signal modulation and a highly nonlinear fiber coupled to the laser diode, wherein the highly nonlinear fiber compensates for signal distortions caused by the laser diode;
- an optical receiver for receiving the signal;
- and
- a transmission fiber coupled to the output of the optical transmitter for transmitting the signal to the optical receiver.
An optical transmitter comprising:
- an input for inputting a signal;
- a laser driver for amplifying and/or reshaping the signal;
- a distributed feedback laser diode coupled to the laser driver, wherein the laser diode modulates the signal;
- a highly nonlinear fiber coupled to the distributed feedback laser diode, wherein the highly nonlinear fiber compensates for signal distortions caused by the laser diode;
- and
- an output for outputting the signal.
An optical transmitter comprising:
- an input for inputting a signal;
- an external modulator for modulating the signal, the external modulator including a distributed feedback laser diode;
- an optical amplifier coupled to the external modulator, wherein the optical amplifier amplifies the signal;
- a highly nonlinear fiber coupled to the optical amplifier, wherein the highly nonlinear fiber induces proper frequency chirping for the external modulator;
- and
- an output for outputting the signal.
A method for transmitting a signal comprising:
- generating a signal;
- modulating the signal with a modulator;
- and
- compensating distortion to the signal by passing the signal through a highly nonlinear fiber.
A method for transmitting a signal comprising:
- generating a signal;
- modulating the signal with a distributed feedback laser diode;
- and
- compensating distortion to the signal by passing the signal through a highly nonlinear dispersion shifted fiber.
Dependencies are inferred from the claim text.