Feedback  Site Map  
  Related Links

   Optical Communications
   Corner Cube Demo
   Communication Link
   MOICS Videos

  Request More Info

Optical MEMS Corner-Cube Reflector (CCR)

An electrostatic micro CCR: The movable base mirror is tilted when at rest. Incident light can be modulated by applying a voltage that pulls the mirror toward the substrate into a position orthogonal to the other two mirrors. CCRs of this design have a bandwidth ranging from 0.2 to 2 kHz, with a driving voltage of 20 to 40 V. Photo courtesy of the UCLA Department of Electrical Engineering.

The key component of MOICS, the Tanner optical MEMS communication system, is the MEMS CCR (the micro-electromechanical systems corner cube reflector). When its three mirrors are mutually orthogonal, any incoming radiation is reflected directly back to the source. A CCR can modulate the signal—and thereby relay information—by tilting one of its mirrors. Because the area of each CCR mirror will be less than 0.1 mm2, the remote units will be very small. Our goal is to develop affordable MEMS CCRs that achieve MOICS performance specs (e.g., a bandwidth of 100 kHz) and that can be easily assembled. Check out our videos of CCR assembly and modulation!

This research has been sponsored by the Defense Advanced Research Projects Agency (DARPA).


Back to top

Home | Products | MEMS | R & D | Contact Info | Feedback | Site Map

Copyright © 1999-2001 by Tanner Research, Inc. All Rights Reserved