1.56-microseconds continuously tunable parametric delay line for a 40-Gb/s signal

Experimental demonstration of an all-fiber, all-optical continu- ously tunable delay line is reported. The 1.56-ìs delay with a record 62,400 time-delay bit-rate product was characterized for a 40-Gbps data channel. The result was enabled by parametric dispersion compensation with cas-caded triple-conversion in highly-nonlinear fiber capable of continuous tun-ing over 39. 5 nm.