| 1.5 μm Ti:LiNbO3电光波导强度调制器 |
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| 引用本文： | 张伯华,高福斌,金锋.1.5 μm Ti:LiNbO3电光波导强度调制器[J].光子学报,1990,19(2):199-204. |
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| 作者姓名： | 张伯华 高福斌 金锋 |
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| 作者单位： | 北方交通大学，中国科学院长春物理研究所，中国科学院长春物理研究所 硕士研究生 |
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| 摘 要： | 用钛内扩散技术和常规光刻手段,研制出1.5μmLiNbO3电光波导强度调制器。它由单模波导非对称Mach-Zehnder干涉仪和三电极共平面波导组成。干涉仪的两个臂长相差波导波长的四分之一,使器件在最佳线性点工作,无需外加电偏压。集总调制和行波调制的理论带宽分别为1GHz和7.8GHz。对于集总器件,测量了调制特性,半波电压为9.5V,调制带宽为0.7GHz。
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| 关 键 词： | 电光波导强度调制器 单模波导非对称Mach-Zehnder干涉仪 三电极共平面波导 |
1.5μm Ti:LiNbO3 ELECTROOPTIC WAVEGUIDE INTENSITY MODULATOR |
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| Zhang Bohua,Gao Fubin,and Jin Feng.1.5μm Ti:LiNbO3 ELECTROOPTIC WAVEGUIDE INTENSITY MODULATOR[J].Acta Photonica Sinica,1990,19(2):199-204. |
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| Authors: | Zhang Bohua Gao Fubin and Jin Feng |
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| Institution: | Changchun Institute of Physics, Academia Sinica |
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| Abstract: | A 1.5μm LiNbO3 electrooptic waveguide intensity modulator has been developed by using Titanium indiffusion technique and common photolithographic method. It consists of a single-mode waveguide asymmetric Mach-Zehnder interferometer and a three-electrode coplanar waveguide. Two arms of the interferometer are different in length by one-quarter of a guide wavelength, allowing the device to operate at its optimal linearity point without external electrical bias. Theoretical bandwidths for lumped modulation and traveling-wave modulation are 1GHz and 7.8GHz, respectively. For the lumped device, modulation properties have been measured, its half-wave Voltage is 9.5V, and modulation bandwidth is 0.7GHz. |
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| Keywords: | Electrooptic waveguide intensity modulator Single-mode waveguide asymmetric Mach-Zehnder interferometer Three-electrode coplanar waveguide |
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