Very-low-current operation of InAlGaAs/InAlAs/InP Mach-Zehnder interferometer-type multi-mode interference photonic switch (MIPS-MZ)

We fabricated an InAlGaAs/InAlAs /InP semiconductor photonic switch with a Mach-Zehnder interferometer (MZI) and multi-mode interference (MMI) couplers for low-power consumption operation. As a result, low-current and high-seed switching operation was attained with as low as 3.5 mA and nano-second order experimentally.