| 1.55-μm supercontinuum based on dispersion-flattened photonic crystal fiber |
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| 作者姓名： | ZHANG Xia XU Yong-zhao HUANG Yong-qing REN Xiao-min |
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| 作者单位： | Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing University of postsand Telecommunications, Beijing 100876, China |
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| 基金项目： | This work is supported by the National Basic Research Program of China （2003CB314906）, the Key grant Project of Chinese Ministry of Education （N0. 104046）. |
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| 摘 要： | A dispersion-flattened photonic crystal fiber with normal dispersion is designed for generating flat wideband supercontinuum, and the supercontinuum generation in this fiber is numerically analyzed. The results show that by appropriately designing the photonic crystal fiber, it can achieve flattened dispersion in the normal dispersion region. It is found that a fiber characterized by a flattened dispersion with a small normal dispersion is suitable for a flat wideband supercontinuum generation. In the process of spectral broadening, self-phase modulation effect plays a dominant role. By filtering the supercontinuum, pulses with different central wavelength over a wide spectral range can be obtained. The pulse width is determined by the bandwidth of the filter.
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| 关 键 词： | 光学纤维 光子晶体 色散 频率 |
| 文章编号： | 1673-1905（2007）05-0346-03 |
| 收稿时间： | 10 November 2006 |
| 修稿时间： | 2006-11-10 |
1.55- μm supercontinuum based on dispersion-flattened photonic crystal fiber |
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| ZHANG Xia XU Yong-zhao HUANG Yong-qing REN Xiao-min.1.55- μm supercontinuum based on dispersion-flattened photonic crystal fiber[J].Opto-electronics Letters,2007,3(5):346-348. |
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| Authors: | Xia Zhang Yong-zhao Xu Yong-qing Huang and Xiao-min Ren |
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| Affiliation: | (1) Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing University of posts and Telecommunications, Beijing, 100876, China |
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| Abstract: | A dispersion-flattened photonic crystal fiber with normal dispersion is designed for generating flat wideband supercontanuum, and the supercontinuum generation in this fiber is numerically analyzed. The results show that by appropriately designing the photonic crystal fiber, it can achieve flattened dispersion in the normal dispersion region. It is found that a fiber characterized by a flattened dispersion with a small normal dispersion is suitable for a flat wideband supercontinuum generation. In the process of spectral broadening, self-phase modulation effect plays a dominant role. By filtering the supercontinuum, pulses with different central wavelength over a wide spectral range can be obtained. The pulse width is determined by the bandwidth of the filter. |
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| Keywords: | TN253 |
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