TY  - JOUR
TI  - Investigation of a novel temperature-sensing mechanism based on strain-inducedoptical path-length difference in a multicore optical ber
AB  - A four-core optical ber is employed to investigate a novel temperature-sensing mechanism, which is basedon the strain-induced optical path-length difference between the ber core pairs. A short segment of a four-core ber iswound around a solid stainless steel cylinder to form a tight circular loop, which is exposed to temperatures of up to 100◦C. Temperature-induced radial expansion of the stainless steel cylinder causes a shear strain in the ber and introducesan optical path-length difference between the ber core pairs. This results in a total phase shift of about 20.40 0.29rad in the interference pattern of the four-core ber, which is monitored by a CMOS camera. The temperature-inducedphase and strain sensitivities are measured to be 3.74 rad/m◦C and 0.18 "/◦C, respectively
AU  - GÜVENÇ, Sema
AU  - GÖKBULUT, Belkıs
AU  - Inci, Mehmet Naci
PY  - 2017
JO  - Turkish Journal of Physics
VL  - 41
IS  - 5
SN  - 1300-0101
SP  - 410
EP  - 417
DB  - TRDizin
UR  - http://search/yayin/detay/244512
ER  -