| 基于高双折射PCF的双Sagnae环高分辨率FBG解调系统 |
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| 引用本文： | 郝文良,彭军,俞本立.基于高双折射PCF的双Sagnae环高分辨率FBG解调系统[J].光电子．激光,2011(10):1443-1446. |
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| 作者姓名： | 郝文良 彭军 俞本立 |
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| 作者单位： | 安徽大学光电信息获取与控制教育部重点实验室；;北京市微技术研究所；;安徽大学光电信息获取与控制教育部重点实验室； |
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| 基金项目： | 自然科学基金资助项目(60940022);教育部博士点基金资助项目(20093401110002) |
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| 摘 要： | 提出了一种基于高双折射光子晶体光纤（HB-PCF）的双Sagnac环的级联结构。理论计算表明，由光环形器构成的该级联结构，如双环中HB-PCF长度相等，与单环相比，可使干涉消光比增加1倍；实验中，双环结构输出干涉消光比达到43dB。基于边缘滤波器原理，实现了光纤Bragg光栅（FBG）高分辨率解调，静、动态应变分辨率分...
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| 关 键 词： | 光纤Bragg光栅(FBG) Sagnac光纤环 高双折射光子晶体光纤(HB-PCF) 3 dB耦合器 偏振分束器 (PIGS) |
High-resolution FBG demodulation system with two Sagnac loops based on high birefringence PCF |
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| HAO Wen-liang,PENG Jun and YU Ben-li.High-resolution FBG demodulation system with two Sagnac loops based on high birefringence PCF[J].Journal of Optoelectronics·laser,2011(10):1443-1446. |
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| Authors: | HAO Wen-liang PENG Jun and YU Ben-li |
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| Affiliation: | Key Laboratory of Optoelectronic Information Acquisition and Manipulation,Education Minsitry of China,Anhui University,Hefei 230601,China;;Beijing Institute of Micro Technology,Beijing 100200,China;Key Laboratory of Optoelectronic Information Acquisition and Manipulation,Education Minsitry of China,Anhui University,Hefei 230601,China; |
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| Abstract: | A novel fiber Bragg grating(FBG) demodulation system is proposed,which is composed of two cascading Sagnac interferometer loops based on the 3 dB coupler and the polarizing beam splitter(PBS) respectively.Theoretical calculations show that the extinction ratio of the system is doubled compared with the one with a single loop,when two sections of high birefringence photonic crystal fiber(HBPCF) have equal length in each loop.Experimental results show that the extinction ratio of interference is 4... |
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| Keywords: | fiber Bragg grating(FBG) Sagnac fiber loop high birefringence photonic crystal fiber(HB-PCF) 3 dB coupler polarizing beam splitter(PBS) |
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