Wavelength division multiplexing transmission apparatus using a multiple wavelength light source
AssigneeFujitsu Limited
InventorFutoshi Izumi
Life of this patent
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Abstract
One of two optical fibers connecting communication stations is used for transmitting multiple wavelength light supplied from a multiple wavelength light source supply apparatus, and the other for a bidirectional communication using optical signals of respective wavelengths generated from the multiple wavelength light. Alternatively, a transmission of multiple wavelength light and a bidirectional communication using the optical signals are enabled by only one optical fiber.
Claims8
A transmission apparatus for transmitting an optical signal through a wavelength division multiplexing by using multiple wavelength light supplied from a multiple wavelength light source, comprising:
- a multiple wavelength light output device for outputting one of multiple wavelength light generated by the multiple wavelength light source and incident multiple wavelength light from a first multiple wavelength light transmission path, to a second multiple wavelength light transmission path;
- a multiple wavelength light separation device for separating the multiple wavelength light into lights of respective wavelengths;
- a modulation device for generating an optical signal by modulating each of the separated lights of the respective wavelengths by a transmission data string;
- and
- a wavelength multiplexing device for multiplexing a plurality of optical signals to output to an optical signal transmission path.
A transmission apparatus for transmitting an optical signal through a wavelength division multiplexing by using multiple wavelength light supplied from a multiple wavelength light source, comprising:
- a multiple wavelength light output device for outputting incident multiple wavelength light from one of the multiple wavelength light source and a first transmission path, to a second transmission path;
- a conversion device for converting respective wavelengths of the multiple wavelength light in the lump;
- a multiple wavelength light separation device for separating the converted multiple wavelength light into lights of respective wavelengths;
- a modulation device for generating an optical signal by modulating each of the separated lights of respective wavelengths by a transmission data string;
- and
- a wavelength multiplexing device for multiplexing a plurality of optical signals having different wavelengths to output to the second transmission path.
A transmission apparatus for transmitting an optical signal through a wavelength division multiplexing by using multiple wavelength light supplied from a multiple wavelength light source, comprising:
- a first multiple wavelength light output device for outputting incident first multiple wavelength light from one of the multiple wavelength light source and a first transmission path, to a second transmission path;
- a second multiple wavelength light output device for outputting incident second multiple wavelength light from one of the multiple wavelength light source and a second transmission path, to the first transmission path;
- a conversion device for converting respective wavelengths of the first and second multiple wavelength lights in the lump;
- a first multiple wavelength light separation device for separating the converted first multiple wavelength light into lights of respective wavelengths;
- a second multiple wavelength light separation device for separating the converted second multiple wavelength light into lights of respective wavelengths;
- a first modulation device for generating an optical signal by modulating each of the separated lights, separated by the first multiple wavelength light separation device, of respective wavelengths by a transmission data string;
- a second modulation device for generating an optical signal by modulating each of the separated lights, separated by the second multiple wavelength light separation device, of respective wavelengths by a transmission data string;
- a first wavelength multiplexing device for multiplexing a plurality of optical signals having different wavelengths, which have been generated by the first modulation device, to output to the first transmission path;
- and
- a second wavelength multiplexing device for multiplexing a plurality of optical signals having different wavelengths, which have been generated by the second modulation device, to output to the second transmission path.
Dependencies are inferred from the claim text.