TY - JOUR
T1 - Temperature compensated strain sensor based on cascaded sagnac interferometers and all-solid birefringent hybrid photonic crystal fibers
AU - Gu, Bobo
AU - Yuan, Wu
AU - He, Sailing
AU - Bang, Ole
N1 - Funding Information:
Manuscript received September 9, 2011; revised November 2, 2011; accepted November 6, 2011. Date of publication November 9, 2011; date of current version April 20, 2012. This work was supported in part by the Chinese Scholar Council. The associate editor coordinating the review of this paper and approving it for publication was Dr. M. N. Abedin.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - We demonstrate a temperature compensated strain sensor with two cascaded Sagnac interferometers, that provide strain sensing and temperature compensation, respectively. The Sagnac interferometers use an all-solid hybrid photonic crystal fiber with stress-induced birefringence. The stress-induced birefringent fiber is known to offer the maximum strain sensitivity, but also to suffer from temperature crosstalk. Our experimental results show that the cascaded Sagnac sensor can suppress the crosstalk to a temperature upto 0.33 με/°C, while still providing a high strain sensitivity of ∼25.6 pm/με.
AB - We demonstrate a temperature compensated strain sensor with two cascaded Sagnac interferometers, that provide strain sensing and temperature compensation, respectively. The Sagnac interferometers use an all-solid hybrid photonic crystal fiber with stress-induced birefringence. The stress-induced birefringent fiber is known to offer the maximum strain sensitivity, but also to suffer from temperature crosstalk. Our experimental results show that the cascaded Sagnac sensor can suppress the crosstalk to a temperature upto 0.33 με/°C, while still providing a high strain sensitivity of ∼25.6 pm/με.
KW - Cascaded Sagnac interferometers
KW - hybrid photonic crystal fiber
KW - temperature compensation
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U2 - 10.1109/JSEN.2011.2175725
DO - 10.1109/JSEN.2011.2175725
M3 - Article
AN - SCOPUS:84860519297
SN - 1530-437X
VL - 12
SP - 1641
EP - 1646
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 6
M1 - 6074919
ER -