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Our research on optical phased-array switches on InP and Si substrates is reviewed, including a strictly non-blocking 8×8 switch on InP. We demonstrate nanoseconds reconfiguration time, ultra-broad optical bandwidth covering the entire C-band, and error-free transmission of 40-Gbps (10-Gbps × 4ch) WDM signal. Then, our recent activity to manipulate polarizations in photonic integrated circuits is reviewed, such as development of half-ridge InP/InGaAsP polarization converters and their integration with active devices.
© 2014 Optical Society of America
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