Title :
High temperature sensor properties of a specialty double cladding fiber
Author :
Zhou, Ting ; Pang, Fufei ; Wang, Tingyun
Author_Institution :
Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China
Abstract :
A simple high temperature fiber sensor is proposed and demonstrated. The sensor head is made of a short section of specialty double cladding fiber (DCF). The DCF consists of a depressed inner cladding which is boron (B)-doped silica. Through an evanescent wave, the cladding mode can be excited, and thus the transmission presents a resonant spectral dip. The high temperature sensing properties was studied according to the shift of the transmission spectrum shifts. With increasing the temperature from 28°C to 850°C, the resonant spectrum shifts to longer wavelengths. The sensitivity is 0.112 nm/°C.
Keywords :
boron; fibre optic sensors; optical fibre cladding; silicon compounds; spectral line shift; temperature sensors; thermo-optical effects; DCF; SiO2:B; boron-doped silica; cladding mode; depressed inner cladding; double cladding fiber; high temperature fiber sensor; temperature 28 degC to 850 degC; transmission spectrum shifts; Abstracts; Educational institutions; Multiplexing; Optical fiber sensors; Optical fibers; Double cladding fiber; boron-doped fiber; cladding mode; high temperature;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
