| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical signal buffer memory circuit and an optical signal buffer method capable of giving an infinite optical delay quantity without inviting wave deterioration with a simple structure.SOLUTION: Phase modulation means R1-1, L1-1 are driven first using an optical signal string Data-1 synchronized with the clock of a clock signal light CLK-1 and after that using an optical signal string CLK-1-out-DMZ1 of the preceding circulation, a phase difference is caused in a RZ type clock signal light CLK-1 that propagates through two optical interference arms, an optical signal string CLK-1-out-DMZ1 of the circulation output from the optical output port P-MZ-1-bar is made to circulate to an optical branch part C-1 as the same data pattern as the data pattern of the optical signal string Data-1 by turning ON or OFF each pulse of the clock signal light CLK-1, and the data pattern is maintained inside an optical signal buffer memory circuit. |
