An optical binary switch for aircraft applications is demonstrated. A fiber Fabry–Perot interferometer (FFPI) bonded to a cantilever is used as the sensing element. A white-light interferometry system with two bulk Michelson interferometers sharing the same motor-driven translation stage is utilized to monitor the elongation of the FFPI. The system exhibits excellent linearity as a force sensor; the experimental results are in good agreement with theoretical calculated values. With a properly set threshold value, the system produces a binary output.
© 2006 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: May 4, 2006
Manuscript Accepted: June 30, 2006
Published: August 25, 2006
Zhaoxia Xie and Henry F. Taylor, "Fabry-Perot optical binary switch for aircraft applications," Opt. Lett. 31, 2695-2697 (2006)