光学学报, 2010, 30 (8): 2370, 网络出版: 2010-08-13   

双光子光折变晶体串联回路中独立屏蔽光伏孤子对

Separate Screening-Photovoltaic Soliton Pairs in Series Two-Photon Photorefractive Crystal Circuit
作者单位
1 运城学院 物理与电子工程系,山西 运城044000
2 华中科技大学 光电子科学与工程学院,湖北 武汉 430074
摘要
提出了在由两块双光子光伏光折变晶体和一个电源通过导线串联而成的回路中存在双光子独立屏蔽光伏空间孤子对的理论.在适当的条件下导出了两光束在晶体回路中传播的耦合方程。证明了在回路中存在暗-暗、明-暗和明-明双光子独立屏蔽光伏空间孤子对。在光束的空间展宽远小于晶体宽度的极限条件下,对每种孤子对中两孤子相互作用的研究表明,暗孤子通过光电流能影响孤子对中另一孤子,但明孤子不能影响另一孤子。
Abstract
An idea is presented for the photorefractive spatial soliton,namely,screening-photovoltaic solitons pairs in a biased series two-photon photovoltaic photorefractive crystal circuit consisting of two photorefractive crystals connected electronically by electrode leads in a chain with a voltage source.A set of two coupled equations is derived under appropriate conditions for two-beam propagation in the crystal circuit.The existence of dark-dark,bright-dark and bright-bright two-photon screening-photovoltaic soliton pairs in such a circuit is proved.Studies on the interaction between two solitons in one soliton pair show that only the dark soliton can affect the other by light-induced current,whereas the bright one cannot.The asymmetry result comes from the limit in which the spatial extent of the optical beam is much less than the width of the crystal.
参考文献

[1] . Segev,B.Crosignani,A.Yariv.Spatial solitons in photorefractive media[J]. Phys.Rev.Lett., 1992, 68(7): 923-926.

[2] . C.Duree,J.L.Shult,G.J.Salamo et al..Observation of self-trapping of an optical beam due to the photorefractive effect[J]. Phys.Rev.Lett., 1993, 71(4): 533-536.

[3] . N.Christodoulides,M.I.Carvalho.Bright,dark and gray spatial soliton states in photorefractive media[J]. J.Opt.Soc.Am.B, 1995, 12(9): 1628-1633.

[4] . Segev,G.C.Valley,M.C.Bashaw et al..Photovoltaic spatial solitons[J]. J.Opt.Soc.Am.B, 1997, 14(7): 1772-1781.

[5] 张光勇,刘劲松.闭路光伏暗空间孤子的自偏转特性研究[J].光学学报,2006,26(10):1559-1561

    Zhang Guangyong,Liu Jinsong.Self-deflection characteristics of dark photovoltaic spatial solitons in closed circuit[J].Acta Optica Sinica,2006,26(10):1559-1561

[6] 申岩,张国权,许京军 等.开路光伏空间孤子的动态行为[J].光学学报,2008,28(3):528-533

    Shen Yan,Zhang Guoquan,Xu Jingjun et al..Dynamic behaviour of open-circuit photovoltaic spatial solitons[J].Acta Optica Sinica,2008,28(3):528-533

[7] . S.Liu,K.Q.Lu.Screening-photovoltaic spatial solitons in biased photovoltaic-photorefractive crystals and their self-deflection[J]. J.Opt.Soc.Am.B, 1999, 16(4): 550-555.

[8] . 非相干耦合屏蔽光伏孤子对[J]. 物理学报, 2004, 49(10): 1969-1971.

    . Incoherently coupled screening-photovoltaic soltion pairs[J]. Acta Physica Sinica, 2004, 49(10): 1969-1971.

[9] 钟卫平,易 林.线性聚焦和线性散焦效应对空间孤子相互作用的影响[J].光学学报,2008,28(5):960-964

    Zhong Weiping,Yi Lin.Influence of linear focusing and defocusing effect on interaction between spatial solitons[J].Acta Optica Sinica,2008,28(5):960-964

[10] . S.Liu,Z.H.Hao.Evolution of separate screening soliton pairs in a biased series photorefractive crystal circuit[J]. Phys.Rev.E, 2002, 65(6): 066601-1.

[11] . S.Liu.Separate spatial soliton pairs and solitons interaction in unbiased series photorefractive crystal circuit[J]. Phys.Lett.A, 2002, 300(6): 213-220.

[12] E.Castro-Camus.L.F.Magana.Prediction of the physical response for the two-photon photorefractive effect[J].Opt.Lett.,28(13):1129-1131

[13] . F.Hou,Y.B.Pei,Z.X.Zhou et al..Spatial solitons in two-photon photorefractive media[J]. Phys.Rev.A, 2005, 71(5): 053817.

[14] . F.Hou,Y.Zhang,Y.Y.Jiang et al..Photovoltaic solitons in two-photon photorefractive materials under open-circuit conditions[J]. Opt.Commun., 2007, 273(2): 544-548.

[15] 张宇,侯春风,孙秀冬.温度对双光子光折变介质中光伏孤子特性的影响[J].中国激光,2008,35(5):694-697

    Zhang Yu,Hou Chunfeng,Sun Xiudong.Temperature effects on the photovoltaic spatial solitons in two-photon photorefractive media[J].Chinese J.Lasers,2008,35(5):694-697

[16] . 双光子光折变介质中的非相干耦合空间孤子对[J]. 物理学报, 2007, 56(6): 3261-3265.

    . Incoherently coupled spatial soliton pairs in two-photon photorefractive media[J]. Acta Physica Sinica, 2007, 56(6): 3261-3265.

[17] . Y.Zhang,J.S.Liu.Screening-photovoltaic spatial solitons in biased two-photo photovoltaic photorefractive crystals[J]. J.Opt.Soc.Am.B, 2009, 26(1): 113-120.

吉选芒, 姜其畅, 刘劲松. 双光子光折变晶体串联回路中独立屏蔽光伏孤子对[J]. 光学学报, 2010, 30(8): 2370. Ji Xuanmang, Jiang Qichang, Liu Jinsong. Separate Screening-Photovoltaic Soliton Pairs in Series Two-Photon Photorefractive Crystal Circuit[J]. Acta Optica Sinica, 2010, 30(8): 2370.

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