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A method for creating a full duplex fiber optic network using one single fiber optic cable of the multimode fiber type for simultaneous transmission and reception is described. The method includes the steps of equipping end user devices and switches with bidirectional transceivers utilizing multi-fr

A method for creating a full duplex fiber optic network using one single fiber optic cable of the multimode fiber type for simultaneous transmission and reception is described. The method includes the steps of equipping end user devices and switches with bidirectional transceivers utilizing multi-frequency lasers, allocation of wavelengths to the end user devices to assure interoperability of redundant systems, and connecting the elements with multimode fiber optic cable. The network components include multi-frequency bidirectional transceivers, switches, and multimode fiber optic cable. This full duplex fiber optic network can be created as a single-backbone network or multiple-backbone network operating in series or in parallel to provide backup redundancy. Various embodiments are disclosed to show the versatility and scalability of the network.

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What is claimed is: 1. A network for providing redundant, full duplex, communications, said network comprising: a first network end device; a second network end device; a plurality of complimentary, bi-directional, transceiver pairs, a first said transceiver pair communicatively coupled respectivel

What is claimed is: 1. A network for providing redundant, full duplex, communications, said network comprising: a first network end device; a second network end device; a plurality of complimentary, bi-directional, transceiver pairs, a first said transceiver pair communicatively coupled respectively to said first and said second network end devices to form a first separate network portion, a second said transceiver pair also communicatively coupled respectively to said first and said second network end devices to form a second separate network portion, said transceiver pairs configured for single mode operation, and allocated to said network end devices by transmission and reception wavelength to assure interoperability of redundant systems within said network; and a plurality of multimode optical fibers optically coupled to said transceiver pairs to provide the communicative coupling therebetween, each said multimode optical fiber configured for full duplex communication, each said multimode optical fiber forming at least a portion of a separate network portion between respective said transceiver pairs. 2. A network according to claim 1 wherein said network end devices comprise at least one of an avionic system, a port of a network switch, a computer, a controller, a sensor device, an audio device, and a video device. 3. A network according to claim 1 wherein for each pair of said transceivers, a first transceiver is configured to transmit at a first wavelength and receive at a second wavelength and a second transceiver is configured to transmit at the second wavelength and receive at the first wavelength. 4. A network according to claim 1 wherein each said transceiver comprises a laser diode operable to output multiple frequencies within a spectrum that includes a nominal center wavelength. 5. A network according to claim 1 further comprising a plurality of network switches, each said network switch comprising a portion of said plurality of complimentary, bi-directional, transceiver pairs, each said switch communicatively coupled to at least two other said switches, using a portion of said multimode optical fibers to form a separate network portion. 6. A network according to claim 5 wherein to provide redundancy, the separate network portions are separated logically and physically from one another to provide a redundant network. 7. A network according to claim 5 wherein each said network end device comprises two of said transceivers, a first said transceiver communicatively coupled to a first separate network portion, a second said transceiver communicatively coupled to a second said network portion. 8. A network according to claim 1 further comprising a plurality of network switches, each said network switch comprising a portion of said plurality of complimentary, bi-directional, transceiver pairs, each said switch communicatively coupled to at least two other said switches, portions of said multimode optical fibers, said transceiver pairs, and said network switches forming a network backbone for a plurality of network end devices. 9. A network according to claim 1 wherein each said transceiver comprises a laser diode operable to output multiple frequencies, said laser diodes comprising at least one of a Fabry Perot multiple frequency laser diode and a vertical cavity surface emitting laser multiple frequency laser diode. 10. A network according to claim 1 wherein said first and said second network end devices provide a redundant function, said network configured such that said first and said second network end devices are interchangeable. 11. A network according to claim 1 wherein said transceiver pairs are configured for operation with a single mode optical fiber. 12. A method for fabricating a full duplex, redundant optical network, said method comprising: providing a plurality of network end devices, each network end device having a pair of complimentary, bidirectional optical transceivers; connecting, using multimode fiber optic cable, the transceivers of each network end device to separate network switches, each network switch configured with at least one pair of complimentary, bidirectional optical transceivers; allocating wavelengths of the complimentary, bidirectional optical transceivers to the end devices to assure interoperability of redundant systems within the network; and interconnecting, using multimode fiber optic cable, at least a portion of the non-connected transceivers in the network switches, to provide at least two separate, redundant networks for communications between the network end devices. 13. A method according to claim 12 further comprising providing a plurality of complimentary, bidirectional optical transceiver pairs where a first transceiver of each pair is configured to transmit at a first wavelength and receive at a second wavelength and a second transceiver of each pair is configured to transmit at the second wavelength and receive at the first wavelength. 14. A method according to claim 12 further comprising providing a plurality of complimentary, bidirectional optical transceiver pairs where each transceiver includes a laser diode operable to output multiple frequencies within a spectrum that includes a nominal center wavelength. 15. A method according to claim 12 wherein interconnecting at least a portion of the non-connected transceivers in the network switches further comprises communicatively coupling the network switches, using complimentary bidirectional optical transceivers, to at least two other network switches to form a separate network portion. 16. A method according to claim 15 wherein interconnecting at least a portion of the non-connected transceivers in the network switches, to provide at least two separate, redundant networks comprises separating logically and physically the separate network portions. 17. A method according to claim 15 wherein connecting the transceivers of each network end device to separate network switches comprises: communicatively coupling a first transceiver of the network end device to a first separate network portion; and communicatively coupling a second transceiver of the network end device to a second separate network portion. 18. A method according to claim 15 further comprising forming a network backbone for a plurality of network end devices utilizing the separate network portions. 19. An optical network backbone comprising: a plurality of multimode optical fibers; and a plurality of network switches, each said network switch comprising a plurality of bi-directional, transceivers, at least one of said transceivers in each said network switch operable for bi-directional communication with a network end device, at least one of said transceivers operable for bi-directional communication with another of said network switches, each said transceiver operable to transmit at a first wavelength and receive at a second wavelength, said transceivers are allocated by transmission and reception wavelengths to ensure interoperability of redundant systems of said network end devices. 20. An optical network backbone according to claim 19 wherein said transceivers are configured for operation with a single mode optical fiber. 21. An optical network backbone according to claim 19 wherein each said network switch is optically connected to at least two other of said switches within said network backbone. 22. An optical communications network comprising: a plurality of network end devices, a portion of said devices configured to operate as redundant systems, each said network end device comprising a bi-directional optical transceiver configured to transmit at a first wavelength and receive at a second wavelength, said transceivers configured for single mode operation; a plurality of network switches, each said network switch comprising a bi-directional optical transceiver configured to transmit at a first wavelength and receive at a second wavelength, said transceivers configured for single mode operation; and a plurality of multimode optical fibers configured for full duplex communication, a portion of said optical fibers optically coupling a portion of said network switches to said network end devices, a portion of said optical fibers optically coupling a portion of said network switches to one another, said bi-directional optical transceivers allocated by transmission and reception wavelengths to ensure interoperability of redundant systems of said network end devices.