Patent ID: 6993219

Claim:
An apparatus, comprising: a planar waveguide device; a planar MEMS device; first and second input ports; first and second output ports; and first and second optical circulators, wherein: the MEMS device includes a movable mirror optically coupled to a waveguide of the waveguide device and adapted to move parallel to the plane of the MEMS device; the apparatus is adapted to process light based on phase shift, wherein position of the mirror determines the phase shift; the waveguide device includes first and second waveguides configured to form an optical coupler; the MEMS device includes (i) a first movable mirror optically coupled to the first waveguide and (ii) a second movable mirror optically coupled to the second waveguide; the first circulator is configured to optically couple the first input port, the first waveguide, and the first output port; the second circulator is configured to optically couple the second input port, the second waveguide, and the second output port; each circulator is configured to (a) direct light applied to the corresponding input port into the corresponding waveguide and (b) direct light exiting the corresponding waveguide to the corresponding output port; and the apparatus is a 2×2 optical switch.