A bi-directional wavelength division multiplexing self-healing optical network is disclosed that is constructed of a bi-directional self-healing optical network with one strand of optical fiber which uses a wavelength switching bi-directional add/drop multiplexing unit. The bi-directional wavelength division multiplexing self-healing optical network includes a plurality of nodes. Each of the nodes include a wavelength switching bi-directional add/drop multiplexing section and a sw
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