GAO Ting-ting, HAN Hui-lian
（Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China）
Abstract： Polarization coding is a specific encoding method by using the polarization state of optical signal carrying coded information. It focuses on nonlinear effects, polarization mode dispersion and other issues in high-speed fiber-optic communications. This paper presents a measurement method for polarization state based on elastic-optic modulator. This method not only retains the original advantages of elastic-optic modulator for polarization measurement, but also overcomes the defects of existing methods including high modulation frequency and invalid collection by using array detector. Matlab simulation and experimental verification scheme are given. The feasibility of this method is verified through theoretical analysis, and simulation and experimental results are carried out. The error analysis of the measurement results shows that the method can meet the measurement requirements and provide conditions for using the polarization encoding in high-speed communication.
Key words： stokes parameter； difference frequency modulation； polarization measurement； polarization encoding
CLD number： TN929.11 Document code： A
Article ID： 1674-8042(2014)04-0068-06 doi： 10.3969/j.issn.1674-8042.2014.04.013
References
[1] Winzer P J, Essiambre R. Advanced modulation formats for high-capacity optical transport networks. Journal of Lightwave Technology, 2006, 24(12): 4711-5728.
[2] HU Tian-yi, CUI Sheng. Adcances in the study on polarization mode dispersion monitoring technology. Study on Optical Communications, 2011, 37(6): 1-4.
[3] Weisser S, Raddatz L, Benz A, et al. 170 Gbit/s single-polarization transmissions over 650 km SSMF with 130 km spans using RZ-DPSK. In: Proceedings of Optical Fiber Communication Conference (OFC 2005), 2005, 5: 1-3.
[4] LI Yu-bo, ZHOU Qiang, WU Shu-gao, et al. An optical polarization modulator based liquid crystal. Journal of Optoelectronics·Laser, 2006, 17(7): 783-786.
[5] GUAN Wei， Jones G A， LIU Yan-wei, et al. The measurement of the Stokes parameters: A generalized methodology using a dual photoelastic modulator system. Journal of Applied Physics, 2008, 103(4): 043104.
[6] GUAN Wei, Cook P J, Jones G A, et al. Experimental determination of the Stokes parameters using a dual photoelastic modulator system. Applied Optics, 2010, 49(14): 2644-2652.
[7] Diner D J, Davis A, Hancock B, et al. Dual-photoelastic-modulator-based polarimetric imaging concept for aerosol remote sensing. Applied Optics, 2007, 46(35): 8428-8445.
[8] Egan W G. Photometry and polarization in remote sensing. New York: Elsevier, 1985.
[9] Azzam R M A, Bashara N M. Ellipsometry and Polarized Light. Netherlands： North-Holland Publishing Company, 1997.
[10] Van de Hulst H C. Light scattering by small particles. New York: Dover Publications, 1981.
[11] WANG Li-bo, SHI Zhi-dong, YIN Jun, et al. Measurement system of stokes parameters by virtual instrument. Laser & Optoelectronics Progress, 2010, 47(4): 040701.
[12] WANG Yan-tao, JIANG Feng-xian, JIAO Bin-liang.Verification of polarization state using Stokes parameter. Physics Experimentation, 2011, 32(12): 20-23.
基于弹光调制的偏振态测量方法
高婷婷， 韩慧莲
（中北大学 电子测试技术重点实验室， 山西 太原 030051）
摘要:偏振编码是利用光信号的偏振态承载信息进行编码， 旨在解决高速光纤通信中非线性效应和偏振模色散等问题。 本文提出了基于弹光调制器的偏振态测量方法， 该方法不仅保留了原有弹光调制器偏振测量的优点， 并且克服了现有方法无法用阵列探测器有效采集信息及调制频率高等缺点， 同时给出了Matlab模拟仿真及实验验证方案。 理论分析、 模拟仿真及实验验证了该方法的可行性。 测量结果的误差分析表明， 该方法能满足测量要求， 这为偏振编码在高速光纤通信中的应用创造了条件。
关键词:斯托克斯参量； 差频调制； 偏振测量； 偏振编码
引用格式：GAO Ting-ting, HAN Hui-lian. Polarization state measurement based on photoelastic modulation. Journal of Measurement Science and Instrumentation, 2014, 5(4): 68-73. [doi: 10.3969/j.issn.1674-8042.2014.04.013]
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