Novel all-optical format conversion using an ultrafast-nonlinear interferometer at 10–40 Gbit/s

All-optical data format conversion from nonreturn-to-zero (NRZ) to pseudoreturn-to-zero (PRZ) using an ultrafast nonlinear interferometer has been proposed and demonstrated for the first time. Stable format conversion from NRZ to PRZ has been achieved at 10–40 Gbit/s. This scheme may be useful for all-optical clock recovery in high-speed optical communication systems. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 508–510, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22183