Google Inc.

Scott Donald McCauley

Roy Michael Bannon

This disclosure provides systems, methods, and apparatus for a MEMS mirrors based optical circuit switch. The optical circuit switch includes digital to analog converter (DAC) for converting digital position codes into analog mirror position signals. A mapper transforms the analog mirror position signal into a mapped mirror position signal. The mapped mirror position signal is provided to a MEMS actuator that positions the MEMS mirror based on the mapped mirror position signal. The mapper transforms the analog mirror position signal into the mapped mirror position signal such that the MEMS mirror position has a substantially linear relationship with the analog mirror position signal provided by the DAC.

Non-linear analog mapper for MEMS based optical circuit switches

A hardware plane providing improved cooling air flow is disclosed herein. The hardware plane includes one or more minor planes extending from a major plane so that a gap or opening is formed for air flow. A cooling unit moves air through the gap and across the surface of hardware cards connected to the hardware plane in order to cool the hardware plane and the hardware cards. The hardware plane allows for both improved cooling air flow and for space-efficient and cost-efficient positioning of hardware cards, data buses, and control buses.

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Sunnyvale, CA, United States of America

Scott Donald McCauley