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This paper demonstrates and discusses low-power operation of optical switches consisting of semiconductor, InAlGaAs/InAlAs/InP, for high speed and polymer for low cost applications based on Mach-Zehnder interferometer structures with power consumptions of 4-6 mW as well as low crosstalks of less than -20dB and polarization independence.
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...
For polarization-independent and low-crosstalk switching operation a Mach-Zehnder interferometer (MZI) type photonic switch using Multi-mode interference (MMI) couplers, an optimal structure was investigated. As a result, the combination of high-mesa and middle-mesa waveguides was found to realize low-crosstalk of -30 dB and polarization-independent semiconductor high-speed photonic switch.
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