| 质子交换LiNbO3波导调制器多模截止波长的测试技术研究 |
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| 引用本文： | 张广,陈抱雪,傅长松,隋国荣,王关德.质子交换LiNbO3波导调制器多模截止波长的测试技术研究[J].光学学报,2011(11):185-189. |
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| 作者姓名： | 张广 陈抱雪 傅长松 隋国荣 王关德 |
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| 作者单位： | 上海理工大学光电信息与计算机工程学院;上海理工大学上海市现代光学系统重点实验室; |
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| 基金项目： | 国家自然科学基金(61077042,60677032); 上海市重点实验室建设项目(08DZ2272800); 上海市重点学科项目(S30502)资助课题 |
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| 摘 要： | 提出并实验了一种采用倒置输入的结构来测定Y分支LiNbO3波导相位调制器的多模截止波长的新方法,模式耦合分析表明,倒置输入的Y分支波导的多模传输的输出功率具有随波长变动发生振荡的特征,该特征可用于定量判定多模截止波长.方法的有效性得到了波束传播法(BPM)仿真和样品实验两方面的验证.
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| 关 键 词： | 导波光学 光纤陀螺 Y分支LiNbOs波导 多模截止波长 |
Research for Measuring the Multi-Mode Cut-Off Wavelength of LiNbO_3 Waveguide Modulator Fabricated by Proton Exchange |
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| Zhang Guang Chen Baoxue, Fu Changsong Sui Guorong Wang Gu,e School of Optical-Electronic , Computer Engineering,University of Shanghai for Science , Technology,Shanghai ,China Shanghai Key Laboratory of Modern Optical System,China.Research for Measuring the Multi-Mode Cut-Off Wavelength of LiNbO_3 Waveguide Modulator Fabricated by Proton Exchange[J].Acta Optica Sinica,2011(11):185-189. |
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| Authors: | Zhang Guang Chen Baoxue Fu Changsong Sui Guorong Wang Gu e School of Optical-Electronic Computer Engineering University of Shanghai for Science Technology Shanghai China Shanghai Key Laboratory of Modern Optical System China |
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| Institution: | Zhang Guang1 Chen Baoxue1,2 Fu Changsong1 Sui Guorong1 Wang Guande1 1 School of Optical-Electronic and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China 2 Shanghai Key Laboratory of Modern Optical System,China |
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| Abstract: | An inverted structure of Y-branch LiNbO3 waveguide for measuring the multi-mode cut-off wavelength of the phase modulator is proposed and experimented.Analysis of the mode coupling shows that the output power of the inverted Y-branch waveguide is cyclical fluctuated with the wavelength when the waveguide is in multi-mode.And this characteristics can be used to judge the multi-mode cut-off wavelength.The validity of the method has been verified by simulation and experiment with sample. |
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| Keywords: | guided wave optics fiber optic gyroscope Y-branch LiNbO3 waveguide multi-mode cut-off wavelength |
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