Title :
Mechanical vibration sensing using cascaded long period fiber grating
Author :
Takeuchi, Masaru ; Tanaka, Shoji ; Tekuramori, Shingo ; Wada, Atsushi ; Takahashi, Naoyuki
Author_Institution :
Nat. Defense Acad., Yokosuka, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
Cascaded long period fiber gratings are fabricated and investigated for use in intensity-based fiber optic mechanical vibration sensors. The cascaded LPGs are inscribed in photosensitive fiber by means of point-by-point technique with UV KrF excimer laser and examined in terms of axial strain sensitivity. In the experiment, much higher strain-sensitivity than that of single LPG is obtained and mechanical vibration sensing is successfully demonstrated.
Keywords :
diffraction gratings; excimer lasers; fibre optic sensors; krypton compounds; vibrations; KrF; LPG; UV excimer laser; axial strain sensitivity; cascaded long period fiber grating; intensity-based fiber optic mechanical vibration sensors; mechanical vibration sensing; photosensitive fiber; point-by-point technique; Fiber gratings; Optical fiber sensors; Quantum cascade lasers; Sensitivity; Strain; Vibrations;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600331
