title: Fully distributed fiber-optic temperature sensing using acoustically-induced rocking grating.
abstract: A highly sensitive fully distributed fiber-optic temperature sensing technique is proposed and demonstrated based on a transient and traveling rocking grating. The rocking grating is generated by pulsed acoustic torsional waves propagating along the fiber. The measured temperature sensitivity is 1000 ppm/°C and is experimentally demonstrated mainly due to the temperature dependence of the fiber birefringence. This traveling rocking grating based sensing technique may also serve other fully-distributed sensing applications by using specially designed fibers.
authors: Center for Photonics Technology, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0111, USA. wyj026@vt.edu
authors: Dorothy Y
authors: DY
authors: Wang
authors: Yunmiao
authors: Y
authors: Wang
authors: Jianmin
authors: J
authors: Gong
authors: Anbo
authors: A
authors: Wang