Title

五次非線性效應對高斯脈衝啁啾演變的影響

Translated Titles

The Effect of Quintic Nonlinearity on Evolution of the Chirp of the Gause Pulse

Authors

沈自強(Zi-Qiang Shen);任志君(Zhi-Jun Ren);萬旭(Xu Wan);應朝福(Chao-Fu Ying)

Key Words

五次非線性 ; 啁啾 ; 高斯脈衝 ; quintic nonlinearity ; chirp ; Gauss pulse

PublicationName

激光雜誌

Volume or Term/Year and Month of Publication

26卷6期(2005 / 12 / 01)

Page #

62 - 64

Content Language

簡體中文

Chinese Abstract

從包含五次非線性項的擴展非線性薛定諤方程出發,從理論上推導出包含五次非線性係數的啁啾表達式,以高斯脈衝為例,發現五次非線性效應對啁啾的影響與脈衝的初始啁啾、光纖的損耗係數、入射光場的峰值功率和脈衝傳輸距離等諸多因素有關,在其他參數給定的情況下,重點考慮了五次非線性效應對啁啾的影響特性。研究結果表明,五次非線性效應可以減小啁啾,讓啁啾極值點向脈衝兩側漂移,選擇合適五次非線性係數的光纖,並與其他參數相匹配,可以使脈衝中心附近相當寬的區域出現淨啁啾等於零或近似等於零的現象。

English Abstract

In the paper, we derive an analytic expression of the chirp including the effect of quintic nonlinearity on the chirp properties from extended nonlinear Schrödinger equation. As an example of Gause pulse, The result shows: the effect of quintic nonlinearity on the chirp depends on the initial chirp, the fiber loss, and the peak power of the light field, And the effect of quintic nonlinearity can let the chirp smaller, let the extreme value of the chirp to move to the both sides of the pulse and let the quite wide net chirp equals to be zero or to be zero approximately in the central region of the pulse when the fiber with reasonably quintic nonlinearity is chosen.

Topic Category 基礎與應用科學 > 物理
工程學 > 電機工程