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