Low-crosstalk, Low-power Mach-Zehnder Interferometer Optical Switch Based on III-V/Si Hybrid MOS Phase Shifter

An optical switch with InGaAsP/Si hybrid metal-oxide-semiconductor phase shifter is demonstrated with low crosstalk (−28.6 dB) and low power consumption (1.3 nW) due to the large electron-induced refractive index change and small absorption in InGaAsP.