Ultra-wideband pulse generation with flexible pulse shape and polarity control using a Sagnac-interferometer-based intensity modulator

被引：31

作者：

Li, Jianqiang ^{[1
]}

Xu, Kun ^{[1
]}

Fu, Songnian ^{[2
]}

Wu, Jian ^{[1
]}

Lin, Jintong ^{[1
]}

Tang, Ming ^{[2
]}

Shum, P. ^{[2
]}

机构：

[1] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Opt Commun & Lightwave Technol, Beijing 100876, Peoples R China

[2] Nanyang Technol Univ, Network Technol Res Ctr, Lightwave Technol Grp, Singapore 637553, Singapore

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 26期

关键词：

D O I：

10.1364/OE.15.018156

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a novel scheme to generate ultra-wideband (UWB) pulse by employing a Sagnac interferometer comprising a phase modulator. This structure performs a dual-input and dual-output intensity modulator (IM), ultimately resulting in the flexibility to select the shape and the polarity of the generated UWB pulse. The experiment results show a good agreement with the theoretical investigation in terms of both pulse profile and spectrum, which conforms to the definition of UWB signals by the U. S. Federal Communications Commission. Furthermore, the proposed scheme is independent of the voltage bias point. (c) 2007 Optical Society of America.

引用

页码：18156 / 18161

页数：6

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