Optical crystal depolarizer to enhance two-dimensional disorderly distribution of SOP

Chen Zhe; Lv Feng; Ge Jinghua; Zhang Jun; Yu Jianhui; Lin Honghuan; Sui Zhan

In order to solve the problems of polarization zonal distribution of optical state of polarization (SOP) in the output light of wedge-shaped depolarizer, an optical crystal depolarizer with high disorderly distribution of SOP on the cross section of output light was designed and built. The optical crystal depolarizer combined many more crystal slope structures and optical axes to make the polarization change in light plane and to improve depolarizing efficiency. The simulation and experiments showed that the polarization zonal distribution of output light was weaken obviously and the uniformity of depolarization was improved on the transverse plane of light. The more intricately both crystal slope structures and optical axes were combined, the more disorderly the polarization distribution of the depolarizer would be, and the better the depolarization effect would be.

1. Department of Optoelectronic Engineering,Ji'nan University,Guangzhou 510632,China;

2. Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes,Ji'nan University,Guangzhou 510632,China;

3. Research Center of Laser Fusion,CEAP,Mianyang 621900,China

Received Date: 2012-09-05

Rev Recd Date: 2012-10-03

Publish Date: 2013-05-25

Key words:

Abstract: In order to solve the problems of polarization zonal distribution of optical state of polarization (SOP) in the output light of wedge-shaped depolarizer, an optical crystal depolarizer with high disorderly distribution of SOP on the cross section of output light was designed and built. The optical crystal depolarizer combined many more crystal slope structures and optical axes to make the polarization change in light plane and to improve depolarizing efficiency. The simulation and experiments showed that the polarization zonal distribution of output light was weaken obviously and the uniformity of depolarization was improved on the transverse plane of light. The more intricately both crystal slope structures and optical axes were combined, the more disorderly the polarization distribution of the depolarizer would be, and the better the depolarization effect would be.

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Reference (39)

[1]	Deng Qinghua, Sui Zhan, Li Mingzhong, et al. A new homochromous depolarizer applied in ICF[J]. High Power Laser and Particle Beam, 2005, 17(9): 1391-1393. (in Chinese)
[2]
[3]	Wang Jianjun, Li Mingzhong, Deng Qinghua, et al. Polarization control technology of fiber front-end system in ICF driver[J]. High Power Laser and Particle Beam, 2006, 18(5): 803-806. (in Chinese)
[4]
[5]	Xu Fuyun, Li Guohua. Study on history and present situation of depolarizer and their applications[J]. Optical Instruments, 1995, 17(2): 37-40. (in Chinese)
[6]
[7]	Luo Yong. Study of design method of depolarizer[D]. Wuhan: Huazhong University of Science and Technology, 2006. (in Chinese)
[8]
[9]
[10]	Zhao Jielin. Study on compound depolarization effect of wave plate and revolver[J]. College Physics, 2006, 25(08): 20-21. (in Chinese)
[11]
[12]	Ren Guangjun, Yao Jianquan, Zhao Jielin. The matrix research of multiplex depolarizers[J]. Laser Technology, 2007, 31(3): 314-316. (in Chinese)
[13]
[14]	Liu J, Fang Q, Yin Y, et al. Low-DOP depolarizer for linearly polarized light independent of direction of vibration[J]. Acta Optica Sinica, 2007, 27(3): 536-539.
[15]	Chi Hao, Zhang Xianming, Chen Kangsheng, et al. Coherence analysis of Lyot depolarizer[J]. Journal of Zhejiang University(Engineering Science), 2000, 34(2): 140-142. (in Chinese)
[16]
[17]	Yin Yafang, Fang Qiang, Liu Jihong, et al. Performance analysis of lyot depolarizer on different optical sources[J]. Semiconductor Optoelectronics, 2004, 25(6): 448-453. (in Chinese)
[18]
[19]	Jaff Etal. New method of measuring linear dichroism in the ultraviolet: application to helical polymers[J]. Rev Sci Instrum, 1967, 38(7): 1152-1154.
[20]
[21]	Jerome C K. Depalarizer: US, 4198123[P]. 1980-05-06.
[22]
[23]
[24]	Xu Fuyun, Li Min, Wang Qingpu, et al. Study on a new type quartz depolarizer[J]. Journal of Optoelectronics Laser, 1990, 2(2): 110-111. (in Chinese)
[25]	Xu Fuyun, Tan Junming, Li Min, et al. Study on quartz wedge depolarizer[J]. Journal of Applied Optics, 1990, 1(6): 25-26. (in Chinese)
[26]
[27]
[28]	Wu Fuquan, Li Guohua, Feng Taizhong, et al. Effects of the shape and size of incident beam on the depolarizing degree of the quartz depolarizer with monochromatic light[J]. Journal of QUFU Normal University(Natural Science), 1994, 20(4): 42-45. (in Chinese)
[29]	Wu Fuquan, Li Guohua, Feng Taizhong, et al. Study on depolarizing mechanism and performance of the polychromatic light crystalline quartz rotation depolarizer[J]. Journal of QUFU Normal University(Natural Science), 1995, 21(4): 55-58. (in Chinese)
[30]
[31]	Li Guohua, Zhang Dawei. Three-element compound delayed depolarizer[J]. Laser Technology, 2001, 25(6): 430-432. (in Chinese)
[32]
[33]	Ge Jinghua, Chen Zhe, Luo Yingda, et al. New double-wedge crystal depolarizer for monochromatic pulse light[J]. Applied Optics, 2010, 31(5): 865-870. (in Chinese)
[34]
[35]	Ge Jinghua, Chen Zhe, Luo Yingda, et al. Optimized design of parameters for wedge-crystal depolarizer[J]. Applied Mechanics and Meterials, 2012, 110-116, 3351-3357.
[36]
[37]	Luo Yingda. Mechanism of depolarization and theoretical design of monochromatic pulse laser[D]. Guangzhou: Ji'nan University, 2009. (in Chinese)
[38]
[39]	Fan Zhengyun. The studies on measuring technology about polarization properties in lasers[D]. Changchun: Changchun University of Science and Technology, 2009. (in Chinese)

Optical crystal depolarizer to enhance two-dimensional disorderly distribution of SOP

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