A linear electro-optic modulator based on an array of Mach-Zehnder interferometers

被引：1
|
作者：
Yue, ZZ [1 ]
Tang, SN [1 ]
Chen, RT [1 ]
机构：
[1] Univ Texas, Dept Elect & Comp Engn, Microelect Res Ctr, Austin, TX 78758 USA
来源：
OPTOELECTRONIC INTERCONNECTS V | 1998年 / 3288卷
关键词：
electro-optic modulator; Mach-Zehnder interferometer; linearity;
D O I：
10.1117/12.307577
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A linearized external electro-optic modulator with a number of parallel Mach-Zehnder interferometers cascaded via directional couplers is proposed. Fast-Fourier-Transform method is used to analyze both the third harmonic spurious signal and the third intermodulation distortion. By adjusting the number of Mach-Zehnder interferometers contained in the modulator, the linearity of the transfer curve of the modulator can be modified while obtaining nearly 100% optical modulating depth. The modulator is based on an innovative domain-inverted electro-optic polymer film, where the two arms of each Mach-Zehnder interferometer are inversely poled. As a result, only one driving voltage is required upon a pair of uniform traveling-wave electrodes, for high-speed operation.
引用
收藏
页码：232 / 241
页数：10
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