%0 Journal Article
%T Temperature-insensitive displacement sensor based on high-birefringence photonic crystal fiber loop mirror
%A Hao Zhang
%A Bo Liu
%A Zhi Wang
%A Jianhua Luo
%J Optica Applicata
%D 2010
%I 
%X A temperature-insensitive displacement sensor based on high-birefringence photonic crystal fiber loop mirror (Hi-Bi PCFLM) is proposed. Through the measurement of transmission peak wavelength of the Hi-Bi PCFLM, this displacement sensor quantifies the free end displacement of a uniform-strength cantilever beam, on which part of Hi-Bi PCF is pasted. We have theoretically analyzed its operation principle, which is validated by our experimental results. This displacement sensor has the sensitivity of 0.28286 nm/mm and 0.27024 nm/mm over a range from ¨C21 mm to 21 mm for two adjacent peak wavelengths, respectively. Experimental observation indicates that this sensor has good stability through a temperature range from 40 ¡ãC to 109.5 ¡ãC.
%K <p>fiber-optic sensor
%K displacement sensor
%K high-birefringence fiber loop mirror (Hi-Bi FLM)
%K photonic crystal fiber (PCF)
%K uniform-strength cantilever beam (UCB)</p>
%U http://www.if.pwr.wroc.pl/~optappl/pdf/2010/no1/optappl_4001p209.pdf