This letter describes improvement in the spatial resolution of distributed fiber Brillouin strain sensing by the correlation-based continuous-wave technique, which we proposed previously. The spatial resolution of 1 cm has been achieved for a partly stretched fiber. This result shows the technique is applicable to smart structures or materials as a nervous system to monitor strain distribution.
Published in:
Photonics Technology Letters, IEEE
(Volume:14
,
Issue:
2
)
Date of Publication: Feb. 2002