Simultaneous measurement of temperature and external refractive index by use of a hybrid grating in D fibre with enhanced sensitivity by HF etching
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In: Applied Optics, Vol. 44, No. 2, 2005, p. 178-182.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Simultaneous measurement of temperature and external refractive index by use of a hybrid grating in D fibre with enhanced sensitivity by HF etching
AU - Chen, Xianfeng
AU - Zhou, K.
AU - Zhang, L.
AU - Bennion, I.
PY - 2005
Y1 - 2005
N2 - We propose a dual-parameter optical sensor device achieved by UV inscription of a hybrid long-period grating–fiber Bragg grating structure in D fiber. The hybrid configuration permits the detection of the temperature from the latter’s response and measurement of the external refractive index from the former’s response. In addition, the host D fiber permits effective modification of the device’s sensitivity by cladding etching. The grating sensor has been used to measure the concentrations of aqueous sugar solutions, demonstrating its potential capability to detect concentration changes as small as 0.01%.
AB - We propose a dual-parameter optical sensor device achieved by UV inscription of a hybrid long-period grating–fiber Bragg grating structure in D fiber. The hybrid configuration permits the detection of the temperature from the latter’s response and measurement of the external refractive index from the former’s response. In addition, the host D fiber permits effective modification of the device’s sensitivity by cladding etching. The grating sensor has been used to measure the concentrations of aqueous sugar solutions, demonstrating its potential capability to detect concentration changes as small as 0.01%.
U2 - 10.1364/AO.44.000178
DO - 10.1364/AO.44.000178
M3 - Article
VL - 44
SP - 178
EP - 182
JO - Applied Optics
JF - Applied Optics
SN - 1559-128X
IS - 2
ER -