Interrogation of a Long-Period Grating Sensor by a Thermally Tunable Arrayed Waveguide Grating

被引：10
|
作者：
Guo, Honglei [1 ]
Xiao, Gaozhi [2 ]
Mrad, Nezih [3 ]
Yao, Jianping [1 ]
机构：
[1] Univ Ottawa, Sch Informat Technol & Engn, Microwave Photon Res Lab, Ottawa, ON K1N 6N5, Canada
[2] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
[3] Dept Natl Def, Def R&D Canada, Air Vehicles Res Sect, Ottawa, ON K1A 0K2, Canada
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 21-24期
关键词：
Arrayed waveguide grating (AWG); long-period grating (LPG); sensor interrogation;
D O I：
10.1109/LPT.2008.2004692
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：
An interrogation technique for a long-period grating (LPG) sensor is studied theoretically and experimentally. By employing a thermally tunable arrayed waveguide grating (AWG), the center wavelength of the LPG sensor is successfully measured using the linear temperature dependence of the AWG transmission wavelengths. Initial results show that the proposed interrogation technique can provide a resolution of I pm and interrogation range of 25 urn. Furthermore, this technique has the potential of being packaged into a low-cost and compact-size device.
引用
收藏
页码：1790 / 1792
页数：3
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