Simultaneous Measurement of Refractive Index and Temperature Using a Hybrid Fiber Bragg Grating/Long-Period Fiber Grating Configuration

作者：Jesus C; Caldas P; Frazao O^*; Santos J L; Jorge P A S; Baptista J M

来源：Fiber and Integrated Optics, 2009, 28(6): 440-449.

DOI：10.1080/01468030903290039

• fiber-optic sensors
• gratings
• refractive index
• temperature
• measurement

A fiber optic sensing system for simultaneous measurement of refractive index and temperature, based on a hybrid fiber Bragg grating/long-period grating arrangement is described. The experimental results show that this setup has a good performance in terms of linearity and sensitivity, the ratiometric output changes 4%/0.001 RIU and 3.6%/degrees C, respectively. The sensor resolution for the refractive index is approximate to 2 x 10(-5) RIU. The simultaneous measurement of the refractive index and temperature was demonstrated. The sensing configuration has the ability to be read-out in reflection and works in the telecommunications

• 出版日期2009