| 基于PPLN光波导和频与差频级联型全光波长转换的研究 |
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| 引用本文： | 郭永娟,孙军强,王健.基于PPLN光波导和频与差频级联型全光波长转换的研究[J].光学与光电技术,2007,5(2):65-68. |
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| 作者姓名： | 郭永娟 孙军强 王健 |
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| 作者单位： | 华中科技大学光电子科学与工程学院,武汉,430074 |
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| 摘 要： | 介绍了基于准相位匹配周期极化反转铌酸锂光波导的和频与差频(SFG DFG)级联型全光波长转换技术的基本原理.计算了SFG DFG级联型波长转换的转换效率,分析了抽运光功率以及两个抽运光之间的间距对转换效率的影响,抽运光功率越大,转换效率越高;转换效率随着间距的增大先增大后减小.单抽运调节时的抽运带宽为0.5 nm,同时对信号光脉冲还有压缩作用,压缩比是0.68.
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| 关 键 词： | 周期极化反转铌酸锂 准相位匹配 和频与差频 波长转换 |
| 文章编号： | 1672-3392（2007）02-00065-04 |
| 收稿时间： | 2006-03-15 |
| 修稿时间： | 2006-06-20 |
All-Optical Wavelength Conversion Based on the Cascaded Sum and Difference Frequency Generation in a Periodically Poled Lithium-Niobate Waveguide |
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| GUO Yong-juan,SUN Jun-qiang,WANG Jian.All-Optical Wavelength Conversion Based on the Cascaded Sum and Difference Frequency Generation in a Periodically Poled Lithium-Niobate Waveguide[J].optics&optoelectronic technology,2007,5(2):65-68. |
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| Authors: | GUO Yong-juan SUN Jun-qiang WANG Jian |
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| Abstract: | The principle of all-optical wavelength conversion based on the cascaded sum and difference frequency generation (SFG+DFG) in quasi-phase-matched (QPM) periodically poled LiNbO3 (PPLN) waveguides is introduced. The conversion efficiency of the wavelength converter is calculated. The influences of the powers and span of two pumps on the conversion efficiency are analyzed. Bandwidth of one pump wavelength is discussed. The tuning is about 0.5 nm. The signal pulse width is compressed about 0.68 times. |
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| Keywords: | periodically poled LiNbO3 quasirphase-matched cascaded sum-and difference generation wavelength converter |
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