The co-measurement of pressure and surrounding refractive index based on LPGs

Jingjing Zhu; Yurong Jiang; Wei Xue

doi:10.1117/12.867497

9 November 2010 The co-measurement of pressure and surrounding refractive index based on LPGs

Jingjing Zhu, Yurong Jiang, Wei Xue

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 785341 (2010) https://doi.org/10.1117/12.867497
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

A novel optical fiber sensor for simultaneous measurement of pressure and surrounding refractive index (RI) based on long period gratings (LPGs) is proposed and demonstrated. This device consists of two LPGs with different wavelengths, one of them is shielded from the environment, therefore, is insensitive with surrounding RI. Since the resonant peaks of these two LPGs change differently, the simultaneous measurement has been done. The experimental results show that the device has a good performance in measurement.

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Jingjing Zhu, Yurong Jiang, and Wei Xue "The co-measurement of pressure and surrounding refractive index based on LPGs", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 785341 (9 November 2010); https://doi.org/10.1117/12.867497

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KEYWORDS

Refractive index

Sensors

Cladding

Fiber optics sensors

Environmental sensing

Structured optical fibers

Temperature metrology

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