A buffering structure for sectioned share optical loop switching network

The invention protects a sectional type shared packet switching network buffering structure and relates to optical communication technology field. The invention provides a novel optical packet switching network buffering structure, aiming at the property of the current optical packet switching network buffering structure about low optical fiber operating factor and high cost. The buffering structure adopts optical fiber sectional type share mechanism and consists of a plurality of optical fiber delay units with the same time delay. Except for the next level of delay optical fiber is directly connected with the optical packet switching matrix, two inlets of other optical delay unit on each level are connected with the outlet of the next level of delay optical fiber and are directly connected with the outlet of the optical packet switching matrix. The optical packet data packet in need of time delay chooses different delay optical fiber inlet, according to the time difference of the optical packet switching matrix outlet. The structure can fully improve the operating factor of the optical fiber delay line, reduce the core node cost and solve the interface competition problem of optical packet switching network.