Patent ID: 7127132
Filing Date: 2006-10-24
Classification: G01D,G01L,G02B

Abstract:
1. A fiber-optic sensor system comprising: an optical fiber having a plurality n of sensor gratings applied sequentially to said fiber, said fiber and sensor gratings forming a sensor segment, said sensor segment having a first end and a second end, each said sensor grating operating within a unique wavelength channel; a series sensor formed from a plurality m of said sensor segments, each said sensor segment having a said first end of one sensor coupled to said second end of another said sensor segment forming a series string having an bi-directional end and an unused end; a pulsed source of broadband optical energy applied to said series sensor bi-directional end, said energy reflecting back to said series sensor bi-directional end, being removed, and applied to a wavelength measurement system where a plurality of said sensor gratings provide a plurality of optical responses with only one response per said wavelength channel, where said pulsed source of broadband energy is limited in duration such that each sensor responds in a unique said wavelength channel.