钛扩散LiNbO<sub>3</sub>相位调制器尾纤偏振串音的白光干涉测量方法

李传生; 张春熹; 王夏霄; 李立京; 于佳; 冯秀娟

doi:doi:10.3788/cjl201340.0508003

中国激光, 2013, 40 (5): 0508003, 网络出版: 2013-04-28

钛扩散LiNbO₃相位调制器尾纤偏振串音的白光干涉测量方法

White Light Interferometry for Pigtail Polarization Crosstalk of Ti-Diffused LiNbO₃ Integrated Optic Phase Modulator

论文大纲

李传生 ^*张春熹王夏霄李立京于佳冯秀娟

作者单位

北京航空航天大学仪器科学与光电工程学院, 北京 100191

集成光学 LiNbO3相位调制器钛扩散白光干涉偏振串音 integrated optics LiNbO3 integrated optic phase modulator Ti-diffused white light interference polarization crosstalk

摘要

提出了一种基于白光干涉原理的钛扩散铌酸锂(LiNbO3)集成光学相位调制器尾纤偏振串音测量方法，分析了白光干涉仪输出干涉信号与集成光学芯片和保偏尾纤对轴角度、偏振器起偏角度之间的关系。仿真结果表明：白光干涉仪输出的干涉包络与相位调制器的耦合点存在一一对应的关系，干涉包络的峰值反映了相位调制器的尾纤偏振串音。利用白光干涉仪对某型钛扩散LiNbO3集成光学相位调制器的尾纤偏振串音进行了实际测试，干涉图样中产生了与耦合点位置对应的干涉峰；常温下其输入、输出尾纤偏振串音分别为-34.5 dB和-23.3 dB；在-40 ℃～60 ℃范围内，尾纤偏振串音随温度升高而减小。实验结果验证了测量方法的可行性。

Abstract

A new test method for the pigtail polarization crosstalk of the Ti-diffused LiNbO3 integrated optic phase modulator(TiLiNbO3 IOPM) is proposed based on the white-light interferometry. The white light interference intensity as a function of the alignment angle between the integrated optic chip and the polarization-maintaining pigtail and the azimuth of the polarizer is theoretically analyzed. It is shown by the digital simulation that the pigtail polarization crosstalk of the IOPM can be obtained by the peaks of the interference envelope associated with the polarization coupling points of the IOPM. The pigtail polarization crosstalk of the TiLiNbO3 IOPM is tested by utilizing the white light interferometry, and the apparent interference peaks are exhibited at the polarization coupling points. The input and output pigtail polarization crosstalk are -34.5 dB and -23.3 dB respectively at room temperature, and decrease as the temperature rises from -40 ℃ to 60 ℃. The feasibility of the white light interferometry is verified by the experimental results.

参考文献

[1] J. Blake, P. Tantaswadi, R. T. De Carvalho. In-line Sagnac interferometer current sensor[J]. IEEE Trans. Power Delivery, 1996, 11(1): 116～121

[2] S. Wildermuth, K. Bohnert, H. Brndle. Interrogation of a birefringent fiber sensor by nonreciprocal phase modulation[J]. IEEE Photon. Technol. Lett., 2010, 22(18): 1388～1390

[3] 张朝阳, 张春熹, 王夏霄等. 数字闭环全光纤电流互感器信号处理方法[J]. 中国电机工程学报, 2009, 29(30): 42～46

Zhang Chaoyang, Zhang Chunxi, Wang Xiaxiao et al.. Signal processing system for digital closed-loop fiber optic current sensor[J]. Proceedings of the CSEE, 2009, 29(30): 42～46

[4] 王夏霄, 张猛, 李传生等. 数字闭环光纤陀螺动态模型研究[J]. 中国激光, 2013, 40(2): 0205002

Wang Xiaxiao, Zhang Meng, Li Chuansheng et al.. Research on dynamic model of digital closed-loop fiber optic gyroscope[J]. Chinese J. Lasers, 2013, 40(2): 0205002

[5] 王夏霄, 张春熹, 张朝阳等. 全光纤电流互感器的偏振误差研究[J]. 光子学报, 2007, 36(2): 320～323

Wang Xiaoxiao, Zhang Chunxi, Zhang Chaoyang et al.. Study of polarization errors of all fiber optical current transformers[J]. Acta Photonica Sinica, 2007, 36(2): 320～323

[6] 唐锋. 白光干涉法保偏光纤偏振耦合测试及其应用[D]. 天津: 天津大学, 2005. 31～41

Tang Feng. Measurement of Polarization Coupling in Polarization-Maintaining Fiber Using White Light Interferometry and Its Applications[D]. Tianjin: Tianjin University, 2005. 31～41

[7] 林惠祖, 姚琼, 胡永明. 全保偏结构的光纤偏振耦合测试系统[J]. 中国激光, 2010, 37(7): 1794～1799

Lin Huizu, Yao Qiong, Hu Yongming. Testing system of fiber polariztion coupling based on polarization maintaining structure[J]. Chinese J. Lasers, 2010, 37(7): 1794～1799

[8] 郭振武, 张红霞, 贾大功等. 偏振耦合测试及其振动干扰信号分析[J]. 中国激光, 2011, 38(8): 0805009

Guo Zhenwu, Zhang Hongxia, Jia Dagong et al.. Measurement of polarization coupling and analysis of vibration disturbance signal[J]. Chinese J. Lasers, 2011, 38(8): 0805009

[9] 赵承娟, 杨远洪, 张春熹. 宽谱光源光谱相干度的仿真研究[J]. 光谱实验室, 2005, 22(2): 268～272

Zhao Chengjuan, Yang Yuanhong, Zhang Chunxi. Simulation research for coherence characteristics of broad-band source[J]. Chinese J. Spectroscopy Laboratory, 2005, 22(2): 268～272

[10] H. C. Lefevre. 光纤陀螺仪[M]. 张桂才, 王巍译. 北京: 国防工业出版社, 2002

H. C. Lefevre. The Fiber-Optic Gyroscope[M]. Zhang Guicai, Wang Wei Transl. Beijing: National Defense Industry Press, 2002

[11] 刘隐, 乔海燕, 黄健等. Y波导集成光学器件的耦合技术[J]. 半导体光电, 2010, 31(2): 245～252

Liu Yin, Qiao Haiyan, Huang Jian et al.. Coupling technology of Y-waveguide integrated optical devices[J]. Semiconductor Optoelectronics, 2010, 31(2): 245～252

[12] 刘福民, 黄韬, 李瑞龙等. 外应力对Y波导器件尾纤消光比的影响[J]. 光子学报, 2011, 40(11): 1636～1640

Liu Fumin, Huang Tao, Li Ruilong et al.. Effects of external stress applied to PM fiber-pigtail on extinction ratio of a Y-branch multi-functional integrated optical device[J]. Acta Photonica Sinica, 2011, 40(11): 1636～1640

李传生, 张春熹, 王夏霄, 李立京, 于佳, 冯秀娟. 钛扩散LiNbO₃相位调制器尾纤偏振串音的白光干涉测量方法[J]. 中国激光, 2013, 40(5): 0508003. Li Chuansheng, Zhang Chunxi, Wang Xiaxiao, Li Lijing, Yu Jia, Feng Xiujuan. White Light Interferometry for Pigtail Polarization Crosstalk of Ti-Diffused LiNbO₃ Integrated Optic Phase Modulator[J]. Chinese Journal of Lasers, 2013, 40(5): 0508003.

钛扩散LiNbO₃相位调制器尾纤偏振串音的白光干涉测量方法

关于本站 Cookie 的使用提示

全站搜索

钛扩散LiNbO3相位调制器尾纤偏振串音的白光干涉测量方法

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索

钛扩散LiNbO₃相位调制器尾纤偏振串音的白光干涉测量方法