Title :
Micro-holes integrated fiber Bragg grating for simultaneous and independent refractive index and temperature measurement
Author :
Yang, Minwei ; Wang, D.N. ; Liao, C.R.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China
Abstract :
A compact fiber Bragg grating with multiple micro-holes drilled by use of femtosecond laser micromachining is effectively used for simultaneous and independent refractive index and temperature sensing. A high sensitivity of 266.68dB/RIU is obtained in refractive index range between 1.390 and 1.446, with good linearity.
Keywords :
Bragg gratings; fibre optic sensors; high-speed optical techniques; integrated optics; laser beam machining; micro-optics; micromachining; optical fibres; refractive index measurement; temperature measurement; temperature sensors; femtosecond laser micromachining; microhole integrated fiber Bragg grating; refractive index measurement; sensitivity; temperature measurement; Fiber gratings; Optical fiber sensors; Sensitivity; Temperature measurement; Temperature sensors; (050.277) Gratings; (060.2370) Fiber optics sensors; (060.7140) Ultrafast processes in fibers;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682671
