PURPOSE: To output packets while keeping an interval between adjacent packets to be apart by T or larger at all times.
CONSTITUTION: The memory is provided with an output optical signal line 9 through which an optical packet signal string is outputted so that no optical packet or one optical packet is in existence for each time interval T(T>t), g-stages of 1×m optical switches 11, 1/2 frequency dividers 13-1-13-(g-1) receiving a clock 12 whose period is 2T/m serially and doubling the period of the clock 12 sequentially, optical switch control lines 14-1-14-g used to connect outputs in multiple the clock 12 and the 1/2 frequency dividers 13-1-13-(g-1) to each stage of the 1×m switches, optical delay circuits 15-1-15-m whose delay is respectively 0,T/m, 2T/m,..., (m-1)T/m and connecting respectively to outputs of the 1×m optical switches 11, an m×1 photocoupler 16 and an output optical signal line 17 through which an output of the photocoupler 16 is sent.
HABARA TAKASHI
MATSUNAGA TORU
