Bidirectional wavelength division multiplexed self-healing ring network composed of add fiber and drop fiber
AssigneeKorea Advanced Institute of Science and Technology
InventorsChang Hee Lee, Sung Bum Park
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Abstract
Disclosed herein is a bidirectional wavelength division multiplexed self-healing ring network. The ring network includes a central office and a plurality of remote nodes. Two optical fibers each connect the central office and the remote nodes in a ring form to allow optical signals to be bidirectionally received and transmitted between the central office and the remote nodes. One of the two optical fibers is a drop fiber for transmitting optical signals from the central office to the remote nodes, while the other is an add fiber for transmitting optical signals from the remote nodes to the central office.
Claims87
A bidirectional wavelength division multiplexed self-healing ring network, comprising:
- a central office;
- a plurality of remote nodes;
- and
- two optical fibers connecting the central office and the remote nodes in a ring form to allow optical signals to be bidirectionally received and transmitted between the central office and the remote nodes;
- wherein one of the two optical fibers is a drop fiber for transmitting optical signals from the central office to the remote nodes and the other is an add fiber for transmitting optical signals from the remote nodes to the central office.
A bidirectional wavelength division multiplexed self-healing ring network, comprising:
- a central office;
- a plurality of remote nodes;
- a drop fiber connecting the central office and the remote nodes in a ring form to transmit optical signals from the central office to the remote nodes;
- and
- an add fiber connecting the central office and the remote nodes in a ring form to transmit optical signals from the remote nodes to the central office;
- wherein wavelengths of wavelength division multiplexed signals transmitted from the central office through the drop fiber to the remote nodes in a clockwise direction are allowed to be the same as wavelengths of wavelength division multiplexed signals transmitted in a counterclockwise direction, and the former and the latter are modulated with different data.
Dependencies are inferred from the claim text.