Mirrors with Integrated Position-Sense Electronics for Optical-Switching Applications
For telecommunication systems to transition from 10-Gbit to 40-Gbit rates, signal paths using all-optical switches are becoming increasingly attractive. Analog Devices has developed an integrated optical microelectromechanical system (optical iMEMS) technology. It combines mirrors, high-voltage CMOS for electrostatic deflection, and low-voltage CMOS for on-chip capacitive position-sensing. This technology could drastically lower the cost of all-optical switching systems, ranging from 2-by-2 switches to large arrays. This technical paper briefly describes the methodology and initial results of the position-sense functionality.
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