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We demonstrated the full-interport connection of a non-blocking 4×4 InAlGaAs/InAlAs Mach-Zehnder-type optical switch (MZ-OS) fabric. This switch fabric is consisted of six 2×2 MZ-OS elements in a cascading configuration, and it successfully operated with high-extinction ratios of about 20dB and polarization independence.
We demonstrated a polarization-independent Mach-Zehnder interferometer-type photonic switch with very-low-current of about 5 mA. Furthermore, a few nano-second switching response time was also confirmed which suits for application to optical packet switching.
In this letter, we demonstrated a Mach-Zehnder interferometer-type photonic switch using multimode interference (MMI) couplers with InAlGaAs-InAlAs compound semiconductor materials. A hybrid-waveguide structure with different etching depths was adopted for MMI couplers and other parts of the waveguides for polarization-independent operation. As a result, low-crosstalk switching operation of less than...
We developed an InAlGaAs/InAlAs/InP semiconductor photonic spatial switch with a Mach-Zehnder interferometer (MZI) for optical packet switching. Low switching current of 3.5 mA was attained with low corsstalk of -20 dB and ns-order switching time.
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