Fiber optic network using space and wavelength multiplexed data channel arrays
First Claim
1. An optical network using space and wavelength multiplexed data channel arrays, comprising:
- a plurality of optical network interfaces, each of said optical network interfaces having an optoelectronic transceiver, wherein said transceiver transmits and receives multi-bit word data wherein each bit in said multi-bit word is carried on a single distinct wavelength and said multi-bit word is communicated as wavelength division multiplexed data; and
an interconnection switch for connecting one or more of said plurality of optical network interfaces.
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Abstract
A network for multi-bit word parallel communication between optoelectronic chips on a two dimensional array of optical input and output channels carried on a single dimension of optical fibers. Each bit of a word is carried on a different wavelength and the multiple wavelengths carrying a word are wavelength multiplexed onto a single optical fiber. Multiple fibers can be joined into a one dimensional array of fibers. A transceiver for transmitting and receiving along the optical data channels comprises an array of modulators powered by individual wavelength light beams, either from individual monochromatic light sources and a light beam from a single broadband light source made to pass through a diffraction grating. The modulators are positioned so that each modulator reflects a different wavelength light beam, thereby providing multiple optical channels. Alternatively, multiple wavelengths are generated from CMOS integrated light sources. These multiple optical channels are then collimated and guided into one single mode fiber or multiple multimode fibers at its transmitting end. At the receiving end a diffraction grating is used to separate the distinct data channels by their individual wavelengths. The multiple wavelengths are then caused to fall on an array of optical detectors spaced according to the individual wavelengths to be detected. By constructing a one dimensional array of these fibers, a two dimensional array of optical data channels is realized. The size of the array is determined by the number of fibers and the number of distinct wavelengths combined in each fiber.
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Citations
18 Claims
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1. An optical network using space and wavelength multiplexed data channel arrays, comprising:
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a plurality of optical network interfaces, each of said optical network interfaces having an optoelectronic transceiver, wherein said transceiver transmits and receives multi-bit word data wherein each bit in said multi-bit word is carried on a single distinct wavelength and said multi-bit word is communicated as wavelength division multiplexed data; and an interconnection switch for connecting one or more of said plurality of optical network interfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification