A new optical switch device and method of operating such a device overcomes alignment problems through the use of an optical signal-confining channel that may be embedded so as to confine optical signals in a desired propagation path such that the optical signal's alignment with the output is secured....http://www.google.ca/patents/US7027682?utm_source=gb-gplus-sharePatent US7027682 - Optical MEMS switching array with embedded beam-confining channels and method of operating same
