影响双光子非相干耦合孤子对强度包络的参量理论分析

J4 ›› 2010, Vol. 27 ›› Issue (4): 453-458.

影响双光子非相干耦合孤子对强度包络的参量理论分析

吉选芒¹,姜其畅¹,刘劲松²

1 山西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

收稿日期:2009-09-25 修回日期:2009-10-24 出版日期:2010-07-28 发布日期:2010-06-13
通讯作者: 吉选芒（1965-），男，山西临猗人，教授，工学硕士，从事物理教学与光折变非线性光学方面的研究工作。 E-mail:jixuanmang@126.com
基金资助:
山西省高等学校科技开发基金资助（200611042）

Theoretical analysis of the parameters on the intensity profile of two-photon incoherently coupled spatial soliton pairs

JI Xuan-mang¹, JIANG Qi-chang¹, LIU Jin-song²

1 Department of Physics and Electronic Engineering, Yuncheng University, Yuncheng 044000, China;
2 College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074,China)

Received:2009-09-25 Revised:2009-10-24 Published:2010-07-28 Online:2010-06-13

摘要/Abstract

摘要：

采用数值方法对双光子光折变介质中非相干耦合亮-暗屏蔽光伏孤子对的耦合方程进行了求解。理论分析了启动光，分压系数和晶体温度对孤子对强度包络的影响。结果表明：孤子对包络宽度随启动光的增大而变大；随分压系数的增大而变小；晶体的温度增大，孤子对的宽度变大而峰值光强变小，晶体温度减小，孤子对的宽度变小而峰值变大。这些结果对双光子非相干耦合亮-暗空间孤子对的工程实践有一定参考价值。

关键词: 非线性光学, 双光子光折变效应, 光折变介质, 空间孤子对

Abstract:

The incoherently coupled equations of bright-dark screening-photovoltaic spatial soliton pairs are numerically solved. The effect of gating beam, partial pressure coefficient and temperature on the intensity profile for soliton pairs are analyzed theoretically. The width of soliton-pairs-intensity-profile will increase with gating beam intensity greatening and it will decrease with partial pressure coefficient greatening. When the temperature of crystals is increasing, the width of profile will increase but the maximum intensity of soliton pairs is decrease. It is opposition when the temperature is decreasing. The results are benefit for the project practice of two-photon incoherently coupled spatial soliton pairs.

Key words: nonlinear optics, two-photon photorefractive effect, photorefractive material, spatial soliton pairs

吉选芒姜其畅刘劲松. 影响双光子非相干耦合孤子对强度包络的参量理论分析[J]. J4, 2010, 27(4): 453-458.

JI Xuan-mang, JIANG Qi-chang,LIU Jin-song. Theoretical analysis of the parameters on the intensity profile of two-photon incoherently coupled spatial soliton pairs[J]. J4, 2010, 27(4): 453-458.

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