Electrothermally Actuated Lens Scanner and Latching Brake for Free-Space Board-to-Board Optical Interconnects

@article{Chou2012ElectrothermallyAL,
  title={Electrothermally Actuated Lens Scanner and Latching Brake for Free-Space Board-to-Board Optical Interconnects},
  author={J. B. Chou and Kyoungsik Yu and M. C. Wu},
  journal={Journal of Microelectromechanical Systems},
  year={2012},
  volume={21},
  pages={1107-1116}
}
The design, fabrication, and characterization of an electrothermally actuated lens scanner with bistable mechanical brakes, for the application of free-space board-to-board optical interconnects, are presented. An electrothermally actuated stepper motor is used to scan a 2.8-mm-diameter lens shuttle by a maximum of ±170 μm (±1.57° scanning angle). Bistable mechanical brakes, toggled with U-shaped thermal actuators, will grip and hold the lens shuttle in place while dissipating zero power. The… CONTINUE READING