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新型光纤信号调制器
引用本文:张天浩,贾峰,满江伟,牛凯,王顺利,王旭成,杨嘉,方哲宇,王秉慧.新型光纤信号调制器[J].光电子.激光,2006,17(5):526-528.
作者姓名:张天浩  贾峰  满江伟  牛凯  王顺利  王旭成  杨嘉  方哲宇  王秉慧
作者单位:南开大学物理科学学院光子学中心,弱光非线性光子学材料先进技术及设备教育部重点实验室,天津市信息光子材料与技术重点实验室,天津,300071
基金项目:中国科学院资助项目;南开大学校科研和校改项目
摘    要:在对光纤回波损耗研究的基础上,设计了一种基于多光束干涉效应的新型光纤信号调制器。实验中,利用两光纤端面间的多光束干涉作用,通过压电陶瓷控制两光纤端面的振荡距离,从而在输出端得到被调制过的光信号。这种光纤信号调制器主要针对信号振幅调制,调制比约为10%,信噪比约为60dB,带宽约为200kHz。该调制器展现了一种新颖的设计思路,可应用于光纤传输信号的调幅及光纤光源交流和脉冲信号的输出等。

关 键 词:调制  光纤  多光束干涉
文章编号:1005-0086(2006)05-0526-03
收稿时间:2005-07-23
修稿时间:2005-07-232005-11-06

A New Type of Modulator for Signal in Fiber
ZHANG Tian-hao,JIA Feng,MAN Jiang-wei,NIU Kai,WANG Shun-li,WANG Xu-cheng,YANG Ji,FANG Zhe-yu,WANG Bing-hui.A New Type of Modulator for Signal in Fiber[J].Journal of Optoelectronics·laser,2006,17(5):526-528.
Authors:ZHANG Tian-hao  JIA Feng  MAN Jiang-wei  NIU Kai  WANG Shun-li  WANG Xu-cheng  YANG Ji  FANG Zhe-yu  WANG Bing-hui
Affiliation:Photonics Research Center, The EMC Key Lab. of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials, Tianjin Key Lab. of Photonics Materials and Technology for Information Science, Nankai University, Tianjin 300071, China
Abstract:A new optical fiber signal modulator based on interference of multi-beam is designed. In the experiment, we modulate the optical signal by modulating the distance between the two fiber-faces through the piezoelectric ceramic pipe. The modulator is operated for amplitude modulation, the modulation ratio is about 10%, S/N ratio is about 60 dB and the bandwidth is about 200 kHz. It offers a new method on modulating and can be applied to optical signal transmission in fiber and the output of optical source for fiber.
Keywords:modulation  optical fiber  interference of multi-beam
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