| 色散阶变光纤正常色散区啁啾演变特性之讨论 |
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| 引用本文： | 苗洪利.色散阶变光纤正常色散区啁啾演变特性之讨论[J].光子学报,1998,27(6):513-516. |
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| 作者姓名： | 苗洪利 |
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| 作者单位： | 内蒙古师范大学物理系，内蒙古大学物理系 |
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| 摘 要： | 利用傅里叶变换法得到了色散阶变光纤正常色散区群速度色散导致啁啾的解析表达式;而且,采用数值法模拟了色散阶变光纤正常色散区啁啾演变过程。结果表明:色散阶变光纤中啁啾以色散缓变光纤中啁啾为中心跳跃式变化,但远小于常规光纤中啁啾。选择合适入射脉冲初始啁啾会使净啁啾等于零,从而形成暗孤子。
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| 关 键 词： | 色散阶变光纤 正常色散区 啁啾演变 |
| 收稿时间： | 1998-02-08 |
EVOLUTION OF CHIRP IN THE NORMAL DISPERSION REGION OF STEPWISE DECREASING DISPERSION PROFILED FIBER |
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| Miao Hongli,Wang Jing,Yang Lisen.EVOLUTION OF CHIRP IN THE NORMAL DISPERSION REGION OF STEPWISE DECREASING DISPERSION PROFILED FIBER[J].Acta Photonica Sinica,1998,27(6):513-516. |
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| Authors: | Miao Hongli Wang Jing Yang Lisen |
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| Institution: | Miao Hongli,Wang Jing,Yang Lisen Department of physics,Inner Mongolia Normal University,Hohhot 010022 Feng Qiyuan Department of physics,Inner Mongolia University,Hohhot 010022 Received date:1998-02-08 |
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| Abstract: | An analytic expression is obtained for the chirp induced by the dispersion in the normal dispersion region of stepwise decreasing dispersion profiled fiber by means of Fourier transform algorithm.Using numerical method,we simulate the evolution of chirp in the stepwise decreasing dispersion profiled fiber.The results show that the chirp in the stepwise decreasing dispersion profiled fiber vary jumpingly centring around the chirp in the fiber with slowly decreasing dispersion,howeverit is smaller than chirp in the normal fiber.The net chirp is equal to zero with selecting the suitable initial chirp and the dark soliton can be formed in the stepwise decreasing dispersion profiled fiber. |
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| Keywords: | Stepwise decreasing dispersion profiled fiber Normal dispersion region Evolution of chirp |
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