OPTICAL TRANSMITTER, OPTICAL TRANSMISSION SYSTEM, BANDWIDTH CONTROL METHOD, AND BANDWIDTH CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To transparently transmit client data without generating frame discarding on the client side of a transmitting destination.;SOLUTION: When physical layer data received from the client side is transmitted to the side of a WDM network 30, a padding signal insertion part 124 inserts a padding signal of an amount according to speed difference between a clock on the client side and a clock in a WDM device 100 faster than the clock into physical layer data, and when physical layer data received from other WDM transmitter connected to the side of the WDM network 30 is transmitted to the client side, a padding signal rate calculation part 129, a frequency synchronization control part 12A and a voltage controlled oscillator 12B perform control so as to synchronize a clock to be the basis when the physical layer data is transmitted with a clock which becomes the basis when the physical layer data is transmitted based on insertion rate of the padding signal inserted into the physical layer data.;COPYRIGHT: (C)2009,JPO&INPIT