Protective optical-fiber ring net special for single-fiber two-direction duplexing section
A technology that protects optical fibers and single-fiber bidirectionality. It is used in annular electromagnetic networks, wavelength division multiplexing systems, and electromagnetic network arrangements. It can solve problems such as inability to balance power and effectively suppress crosstalk.
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[0032] The present invention will be further described below in conjunction with the accompanying drawings.
[0033] refer to Figure 1-8 , a single-fiber bidirectional multiplex section special protection optical fiber ring network, including working optical fiber, protection optical fiber, optical fiber node, the bidirectional working channel of the working optical fiber is configured with different working wavelength groups, and the wavelength configuration of the bidirectional protection channel of the protecting optical fiber is the same as that of the working optical fiber On the contrary, the optical fiber node is configured with the opposite working direction and the optical add-drop multiplexing device working group A and B corresponding to the two working wavelength groups, and the optical add-drop multiplexing device working in the opposite direction and corresponding to the two protection wavelength groups Device protection group C and D, four bidirectional coupler...
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