Patent ID: 8334984

Claim:
An apparatus comprising: a plurality of Fabry-Perot interferometric sensors optically coupled in series with each other to form an ordered optical series, each Fabry-Perot interferometric sensor having a unique signalband and a passband, each Fabry-Perot interferometric sensor having its unique signalband within the passbands of all of the next higher ordered Fabry-Perot interferometric sensors in the optical series so that a corresponding unique fringe signal from each of the Fabry-Perot interferometric sensors is a multiplexed output from the optical series; and wherein each Fabry-Perot interferometric sensor comprises an accelerometer having a reference plate and a proof mass plate coupled to the reference plate and movable with respect thereto, the reference plate and proof mass plate having optically treated surfaces to form an optical resonance cavity between each other, the optical resonance cavities of the plurality of accelerometers being serially optically coupled with each other to form the ordered optical series.