[TuC1] FBG and SDM Sensors

[TuC1-2] Vibration Monitoring Based on Cascaded-LPFG Fabricated with Heat-shrinkable Tube

〇Yasuhiro Tsutsumi^1,2, Masaharu Ohashi², Yuji Miyoshi², Hirokazu Kubota², Ikuo Yamashita³ (¹Ritsumeikan Univ., Japan, ²Osaka Prefecture Univ., Japan, ³Kansai Electric Power Co. Inc., Japan)

Keywords:Fiber Based Devices, Fiber gratings, Fiber sensing

We demonstrated vibration monitoring based on cascaded-long period fiber gratins fabricated with heat-shrinkable tubes. Sensing fiber length herein can be more than 20 times shorter than that of conventional methods owing to its high sensitivity.