中国激光, 2015, 42 (4): 0405006, 网络出版: 2015-04-08   

保偏光纤偏振模间延迟的放电调整及波片制作

Redressing Effect of Arc Discharging on Polarization Mode Phase Retardation of Polarization Maintaining Fiber and Application in Waveplate Fabrication
作者单位
1 北京航空航天大学精密光机电一体化技术教育部重点实验室,北京 100191
2 北京航空航天大学惯性技术国防科技重点实验室,北京 100191
摘要
建立了局部放电引起保偏光纤(PMF)两偏振模间相位延迟变化的模型。将熊猫型保偏光纤(P-PMF)和保偏光子晶体光纤(PM-PCF)分别接入萨格纳克干涉仪进行实验研究,发现局部放电使应力型P-PMF 的相位延迟变小,使形状型PM-PCF 的相位延迟变大,且改变放电电流大小和持续时间可有效改变相位延迟调节量,为调节PMF 中两偏振模间相位延迟提供了实用技术。搭建了在线光纤波片制作装置,进行了PM-PCF 光纤1/4 波片制作的实验研究,实现了0.15°的相位延迟精度。多次实验结果表明,采用该技术可保证约0.24°的相位延迟精度。该技术具有操作简单、成本低等优点,可有效提高光纤波片的相位延迟量精度和制作效率。
Abstract
The model of phase retardation shift between the two polarization modes of polarization maintaining fiber (PMF) caused by partially discharging is established. The Panda polarization maintaining fiber (P-PMF) and polarization maintaining photonic crystal fiber (PM-PCF) are investigated respectively in a Sagnac interferometer. The results show that the phase retardations of stress-induced P-PMF and shape-induced PM-PCF will decrease and increase respectively after being partially discharged, and the shift of phase retardation can be effectively changed by adjusting discharging current and duration time, which provides a practical technique for redressing the phase retardation of polarization modes in PMF. An on-line waveplate fabrication setup is established and the fabrication of PM-PCF quarter waveplates is experimentally investigated. A phase retardation precision of 0.15° is achieved. The repeated experimental results demonstrate that the precision of phase retardation can reach about 0.24°. The proposed technique is simple and cost-effective, which can improve the phase retardation precision and the fabrication efficiency of fiber optic waveplates.

陈宇轩, 杨远洪, 杨明伟. 保偏光纤偏振模间延迟的放电调整及波片制作[J]. 中国激光, 2015, 42(4): 0405006. Chen Yuxuan, Yang Yuanhong, Yang Mingwei. Redressing Effect of Arc Discharging on Polarization Mode Phase Retardation of Polarization Maintaining Fiber and Application in Waveplate Fabrication[J]. Chinese Journal of Lasers, 2015, 42(4): 0405006.

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