| Flat Supercontinuum Generation at 1550 nm in a Dispersion-Flattened Microstructure Fibre Using Picosecond Pulse |
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| 作者姓名： | 徐永钊 任晓敏 王子南 张霞 黄永清 |
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| 作者单位： | Key Laboratory of Optical Communication and Lightwave Technologies of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876 |
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| 基金项目： | Supported by the National Basic Research Programme of China under Grant No 2003CB314906, the Foundation for the Key Programme of Ministry of Education of China under Grant No 104046, and the Foundation from the Education Commission of Beijing （XK100130457）. |
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| 摘 要： | The generation of a flat supercontinuum of over 80nm in the 1550nm region by injecting 1.6ps 10 GHz repetition rate optical pulses into an 80-m-long dispersion-flattened microstructure fibre is demonstrated. The fibre has small normal dispersion with a variation smaller than 1.5 （ps·nm^-1·km^-1） between 1500 and 1650nm. The generated supercontinuum ranging from 1513 to 1591 nm has the flatness of ±1.5 dB and it is not so flat in the range of several nanometres around the pump wavelength 1552nm. Numerical simulation is also used to study the effect of optical loss, fibre parameters and pumping conditions on supercontinuum generation in the dispersion-flattened microstructure fibre, and can be used for further optimization to generate flat broad spectra.
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| 关 键 词： | 色散 显微构造 纤维光学 脉冲 |
| 收稿时间： | 2006-9-13 |
| 修稿时间： | 2006-09-13 |
Flat Supercontinuum Generation at 1550nm in a Dispersion-Flattened Microstructure Fibre Using Picosecond Pulse |
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| XU Yong-Zhao,REN Xiao-Min,WANG Zi-Nan,ZHANG Xia,HUANG Yong-Qing.Flat Supercontinuum Generation at 1550 nm in a Dispersion-Flattened Microstructure Fibre Using Picosecond Pulse[J].Chinese Physics Letters,2007,24(3):734-737. |
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| Authors: | XU Yong-Zhao REN Xiao-Min WANG Zi-Nan ZHANG Xia HUANG Yong-Qing |
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| Institution: | Key Laboratory of Optical Communication and Lightwave Technologies of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Abstract: | The generation of a flat supercontinuum of over 80nm in the 1550nm region by injecting 1.6 ps 10 GHz repetition rate optical pulses into an 80-m-long dispersion-flattened microstructure fibre is demonstrated. The fibre has small normal dispersion with a variation smaller than 1.5 (ps.nm-1.km-1) between 1500 and 1650nm. The generated supercontinuum ranging from 1513 to 1591nm has the flatness of ±1.5dB and it is not so flat in the range of severalnanometres around the pump wavelength 1552nm. Numerical simulation isalso used to study the effect of optical loss, fibre parameters and pumping conditions on supercontinuum generation in the dispersion-flattened microstructure fibre, and can be used for further optimization to generate flat broad spectra. |
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| Keywords: | 42 65 Tg 42 81 Qb 42 81 Dp 42 81 Cn |
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