Title :
A high-sensitivity, simple, low-cost method for the measurement of time-multiplexed fiber Bragg grating sensors
Author :
Cooper, D.J.F. ; Smith, P.W.E.
Author_Institution :
Photonics Group, Toronto Univ., Ont., Canada
Abstract :
We have found that the sensitivity of measuring time multiplexed fibre Bragg grating (FBG) sensors can be improved by amplifying the signal returning from the sensors. This can be used to either improve the system performance or reduce the power, and hence the cost of the optical source. In our experiments, we find that the addition of the amplifier would allow a reduction of >120 times in the source power
Keywords :
Bragg gratings; fibre optic sensors; optical fibre testing; sensitivity; time division multiplexing; high-sensitivity simple low-cost method; optical source; power; source power; system performance; time multiplexed FBG sensors; time-multiplexed fiber Bragg grating sensors; Bragg gratings; Costs; Fiber gratings; Optical amplifiers; Optical fiber sensors; Optical sensors; Power amplifiers; Stimulated emission; System performance; Time measurement;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969091
