LINEARIZED MODULATOR FOR SUBOCTAVE-BANDPASS OPTICAL ANALOG LINKS

被引:93
作者
BETTS, GE
机构
[1] Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA
关键词
D O I
10.1109/22.339809
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 spurious-free dynamic range of a suboctave externally modulated optical analog link can be improved (to >140 dB Hz(4/5)) with modest received optical power and little noise figure penalty by using a simple linearized modulator. Its design consists of two standard Mach-Zehnder interferometric modulators in series, and so can operate at microwave frequencies. This paper develops standardized measures of linearized modulator performance, and uses them to evaluate the modulator; link examples are also given. A simple experiment verifies the basic theoretical predictions.
引用
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页码:2642 / 2649
页数:8
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