PCF-Based Fabry–Pérot Interferometric Sensor for Strain Measurement at High Temperatures

2011 ◽  
Vol 23 (11) ◽  
pp. 700-702 ◽  
Author(s):  
Ming Deng ◽  
Chang-Ping Tang ◽  
Tao Zhu ◽  
Yun-Jiang Rao
Keyword(s):  
High Temperatures ◽  
Strain Measurement ◽  
Fabry Perot ◽  
Interferometric Sensor

scholarly journals A Composite Fabry-Perot Interferometric Sensor with the Dual-Cavity Structure for Simultaneous Measurement of High Temperature and Strain

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 4989
Author(s):  
Ping Xia ◽  
Yuegang Tan ◽  
Caixia Yang ◽  
Zude Zhou ◽  
Kang Yun
Keyword(s):  
High Temperature ◽  
Simultaneous Measurement ◽  
Strain Measurement ◽  
Fiber Composite ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Compact Structure ◽  
Cavity Structure ◽  
Fabry Perot ◽  
Interferometric Sensor

In this paper, an optical fiber composite Fabry-Perot interferometric (CFPI) sensor capable of simultaneous measurement of high temperature and strain is presented. The CFPI sensor consists of a silica-cavity intrinsic Fabry–Perot interferometer (IFPI) cascading an air-cavity extrinsic Fabry–Perot interferometer (EFPI). The IFPI is constructed at the end of the transmission single-mode fiber (SMF) by splicing a short piece of photonic crystal fiber (PCF) to SMF and then the IFPI is inserted into a quartz capillary with a reflective surface to form a single-ended sliding EFPI. In such a configuration, the IFPI is only sensitive to temperature and the EFPI is sensitive to strain, which allows the achieving of temperature-compensated strain measurement. The experimental results show that the proposed sensor has good high-temperature resistance up to 1000 °C. Strain measurement under high temperatures is demonstrated for high-temperature suitability and stable strain response. Featuring intrinsic safety, compact structure and small size, the proposed CFPI sensor may find important applications in the high-temperature harsh environment.

scholarly journals Sapphire derived fiber based Fabry-Perot interferometer with an etched micro air cavity for strain measurement at high temperatures

2019 ◽  
Vol 27 (19) ◽  
pp. 27112 ◽  
Author(s):  
Penghao Zhang ◽  
Li Zhang ◽  
Zhongyu Wang ◽  
Xinying Zhang ◽  
Zhendong Shang
Keyword(s):  
High Temperatures ◽  
Strain Measurement ◽  
Air Cavity ◽  
Fabry Perot

Microbubble based fiber-optic Fabry–Perot interferometer formed by fusion splicing single-mode fibers for strain measurement

2012 ◽  
Vol 51 (8) ◽  
pp. 1033 ◽  
Author(s):  
De-Wen Duan ◽  
Yun-jiang Rao ◽  
Yu-Song Hou ◽  
Tao Zhu
Keyword(s):  
Strain Measurement ◽  
Fiber Optic ◽  
Single Mode ◽  
Fabry Perot
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