| Zero-Chirp Return-to-Zero Pulses Generation with Two Single-Driver z-Cut Mach-Zehnder Modulators |
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| 作者姓名： | 秦曦 曹继红 张峰 王目光 张建勇 简水生 |
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| 作者单位： | [1]Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044 [2]Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 60437010. |
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| 摘 要： | A novel method is proposed to suppress the frequency chirp of single-driver z-cut Mach Zehnder modulators. Theoretical analysis shows that by multiplying the output pulses of a half clock frequency driving single-driver z-cut modulator with the one delayed odd multiple bit duration, the frequency chirp can be removed entirely, and return-to-zero （RZ） pulses with duty cycles of about 25% and 56% are obtained. An experimental scheme is proposed to validate the proposed method. The pulses can be obtained by using this scheme. experimental results show that perfect 40 GHz zero-chirp RZ
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| 关 键 词： | 调制器 频率 理论分析 脉冲 |
| 收稿时间： | 2007-04-18 |
Zero-Chirp Return-to-Zero Pulses Generation with Two Single-Driver z-Cut Mach--Zehnder Modulators |
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| QIN Xi,CAO Ji-Hong,ZHANG Feng,WANG Mu-Guang,ZHANG Jian-Yong,JIAN Shui-Sheng.Zero-Chirp Return-to-Zero Pulses Generation with Two Single-Driver z-Cut Mach-Zehnder Modulators[J].Chinese Physics Letters,2007,24(12):3431-3434. |
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| Authors: | QIN Xi CAO Ji-Hong ZHANG Feng WANG Mu-Guang ZHANG Jian-Yong JIAN Shui-Sheng |
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| Institution: | Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 |
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| Abstract: | A novel method is proposed to suppress the frequency chirp of single-driver z-cut Mach--Zehnder modulators. Theoretical analysis shows that by multiplying the output pulses of a half clock frequency driving single-driver z-cut modulator with the one delayed odd multiple bit duration, the frequency chirp can be removed entirely, and return-to-zero (RZ) pulses with duty cycles of about 25% and 56% are obtained. An experimental scheme is proposed to validate the proposed method. The experimental results show that perfect 40GHz zero-chirp RZ pulses can be obtained by using this scheme. |
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| Keywords: | 42 65 Re 42 79 Hp 42 60 Fc |
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