MEMS switchable WDM deinterleaver based on a Gires-Tournois interferometer

We have designed, implemented and characterized a switchable optical (de)interleaver based on a Gires-Tournois interferometer geometry. Less than 1 /spl mu/m piston motion of the individual mirrors of the array is required for tuning of the center wavelength, and for switching of (de)interleaved output ports. The concept can be extended to more complex filtering functions with a variety of applications in optical communication and sensing.