Abstract

Very-high-speed optical communication networks of the future will demand a continuously tunable optical delay circuit to synchronize high-speed optical signals without bit losses.¹ Recently, an optical delay circuit using a timable laser and a dispersive fiber was proposed for such a purpose, and was demonstrated at 622 Mbits/s.² However, no delay circuit applicable to multi-Gbits/s optical signals has yet been realized. Here, we propose a continually tunable all optical delay circuit using a wavelength converter based on Supercontinuum (SC) generation.^3,4 Delay control of a 5 Gbits/s optical signal is demonstrated for the first time.

© 1995 IEEE