An optical fiber sensor array is disclosed which includes a first sensor fiber and a first reference fiber coupled at one end thereof to one side of a first optical coupling. A first wavelength selective reflector is coupled to the other end of each of the first sensor fiber and the first reference fiber....http://www.google.com/patents/US7154082?utm_source=gb-gplus-sharePatent US7154082 - Frequency division and/or wavelength division multiplexed recursive fiber optic telemetry scheme for an optical sensor array