摘要
提出了一种基于光纤熔融拉锥过耦合器进行解调的方法,实验制作了一个特殊的熔融拉锥过耦合器,对其输出的两路光功率进行了测试,并论证了用该耦合器进行解调的原理。利用该过耦合器组成的检测系统对光纤光栅传感器进行解调,得到了较好的响应。该解调方法成本低,结构简单,解调范围大,线性范围可达10 nm以上。
Proposed a kind of interrogation system based on optic fused fiber coupler is proposed.An over coupled fiber coupler is made and its transmission spectrum is researched by relevant experiments.Also the principle of demodulation with this over coupled coupler is discussed.Optic fiber grating sensor demodulation using over coupled coupler experiment is carried on and good response is obtained.Low-cost and a wide scope of 10 nm demodulation range are achieved by this interrogation method.
出处
《光电子技术》
CAS
北大核心
2009年第3期154-157,共4页
Optoelectronic Technology
基金
山东省自然科学基金(Y2007G54)
国家863项目(2006AA062207)
山东省科技厅(MDPC0801)
山东省科技厅(2006JY17)
山东省信息产业厅(2008D00042)
关键词
光纤光栅
熔融拉锥
过耦合器
解调
fiber grating
fused coupler
over coupled fiber coupler
demodulation
