Abstract:SUMMARYSymmetric Mach-Zehnder (SMZ) type all-optical switches, namely, the SMZ, polarization-discriminating SMZ (PD-SMZ), and delayed interference signal wavelength converter (DISC), are described in detail. All of these all-optical switches are characterized by pushpull operation and allow ultrafast switching not limited by the relaxation time of high-efficiency nonlinear optical materials that are suitable for low-power operations. They make possible a low-chirp switching window of a quasi-square type that i… Show more
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