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Microelectromechanical Systems for Spacecraft Communications 175

Splitter Splitter

CMOS Multi-channel
To/from imager tracker
telephoto lens

Receiver Multi-channel
detector array mod-demod
MEMS
beamsteerer
Collimator/laser diode array
array
FIGURE 8.17 Conceptual 1-D MEMS-based multichannel optical communications unit.

single mirror to multiple mirrors (prior to a full 2-D design) is illustrated in
Figure 8.17 to delineate the essential elements required to implement MEMS
beam steering for optical satellite communications. A plan view of a possible 2-D
MEMX design is shown in Figure 8.18.

FIGURE 8.18 Plan-view of 2-D MEMS array using MEMX type micromirrors, suitable for
multichannel optical communications beam-steering.

© 2006 by Taylor & Francis Group, LLC