Title :
Temperature-independent strain sensor using a chirped grating partially embedded in a glass tube
Author :
Kim, Sungchul ; Kwon, Jaejoong ; Kim, Sungwoo ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
6/1/2000 12:00:00 AM
Abstract :
A novel intensity-based temperature-independent strain sensor using a chirped grating is demonstrated. The longer reflection wavelength part of the chirped grating is fixed to a glass tube and, hence, the reflected power from the grating decreases linearly with strain and is independent of temperature perturbation.
Keywords :
chirp modulation; diffraction gratings; fibre optic sensors; optical modulation; strain sensors; chirped grating; fibre Bragg grating sensors; glass tube; intensity-based temperature-independent strain sensor; longer reflection wavelength; partially embedded; reflected power; temperature perturbation; temperature-independent strain sensor; Bragg gratings; Capacitive sensors; Chirp; Fiber gratings; Glass; Optical fiber sensors; Optical fibers; Reflection; Strain measurement; Temperature sensors;
Journal_Title :
Photonics Technology Letters, IEEE
