Liquid refractive index and temperature measurement based on LPFG

被引：0
|
作者：
Cheng Wang [1 ]
Zheng Ping Wang
Guo Sheng Zhang [1 ]
Ren De Ma
Yi Min Zhang
机构：
[1] Beijing Inst Graph Commun, Beijing 102600, Peoples R China
来源：
FUNDAMENTAL PROBLEMS OF OPTOELECTRONICS AND MICROELECTRONICS III, PTS 1 AND 2 | 2007年 / 6595卷
关键词：
mode equation; long-period fiber gratings; resonance wavelength; thermo-optic coefficient;
D O I：
10.1117/12.725915
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Based on the mode equations of the core mode (LP)01 and the cladding mode LP0m, combining with the phase matching condition, a method for simultaneous measurement of liquid refractive index and temperature using a single resonance peak of long-period fiber grating's transmission spectrum is proposed. The operational principle is analyzed; experiments are conducted. The theoretical results are compared with those of the experiments. The results show that they are in accordance with each other.
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页数：5
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