Carrier suppression in quadruple frequency modulation by cascaded optical external modulators for millimeter-wave generation

被引：5

作者：

Zhang, Wei ^{[1
]}

Feng, Xue ^{[1
]}

Zhang, Wei ^{[1
]}

Liu, Xiaoming ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Integrated Optoelect, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2009年 / 7卷 / 03期

关键词：

LOCKING;

D O I：

10.3788/COL20090703.0188

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical carrier suppression in optical quadruple frequency modulation by cascaded external modulators is investigated theoretically and experimentally. Theoretical analysis demonstrates that the optical carrier suppression ratio is related with riot only the initial phase difference of electrical signals applied on the two modulators, but also the optical phase shift between the two modulators. The maximum suppression ratio can be achieved when the total phase difference is equal to n pi + pi/2 (n = 1, 2, ...), which is verified by experiments. By properly controlling the total phase shift. 40-GHz millimeter-wave is generated by using a 10-GHz radio frequency (RF) source and the modulators.

引用

页码：188 / 190

页数：3

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