Emulator of harmonic distortion of bias port of the Mach-Zehnder intensity modulator

被引：1
|
作者：
Svarny, Jiri [1 ]
机构：
[1] Univ West Bohemia, Fac Elect Engn, Dept Technol & Measurement, Reg Innovat Ctr Elect Engn RICE, Plzen, Czech Republic
来源：
JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2018年 / 69卷 / 03期
关键词：
circuit emulation; electro-optic modulator; harmonic analysis; harmonic distortion; intensity modulation; DRIFT;
D O I：
10.2478/jee-2018-0028
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：
The paper deals with the design of an analog circuit to substitute the role of a real intensity Mach-Zehnder modulator for the preliminary tuning of bias controllers. The proposed circuit has similar harmonic distortion as an electro-optic modulator biased around the quadrature operating point. The designed device utilizes a shaping circuit based on a differential pair of bipolar junction transistors. The harmonic distortion of both the Mach-Zehnder intensity modulator and the differential amplifier are analysed. A method to design the emulating circuit of desired features is described and explained and a the comparison of the measured results to the theory is presented.
引用
收藏
页码：212 / 218
页数：7
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