Smita Chaubey
Articles written in Pramana – Journal of Physics
Volume 82 Issue 2 February 2014 pp 373-377 Contributed Papers
Smita Chaubey Sanjay Kher Jai Kishore S M Oak
We have developed high sensitivity long-period fibre gratings (LPGs) in B–Ge codoped fibre for strain sensing application. These LPGs are shortest grating period (180 𝜇m) LPGs inscribed in B–Ge co-doped fibre using CO2 laser-based grating inscription set-up. Strain sensitivity of 1.77 dB/mε has been obtained for attenuation band corresponding to the turnaround point mode. TAP operation of LPG facilitates intensity-based detection using simple optical power meter instead of wavelength-based detection.
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