A method and apparatus for detecting seismic vibrations using a series of MEMS units, with each MEMS unit including an interferometer is described. The interferometers on the MEMS units receive and modulate light from two differing wavelengths by way of a multiplexing scheme involving the use of Bragg...http://www.google.de/patents/US7782465?utm_source=gb-gplus-sharePatent US7782465 - High intensity fabry-perot sensor
