Wavelength-Tunable Femtosecond Soliton Pulse Generation for Wavelengths of 0.78–1.0 µm Using Photonic Crystal Fibers and a Ultrashort Fiber Laser
Wavelength-Tunable Femtosecond Soliton Pulse Generation for Wavelengths of 0.78–1.0 µm Using Photonic Crystal Fibers and a Ultrashort Fiber Laser
复制标题
DOI：
10.1143/jjap.42.449
复制
发表时间：
2003-02
影响因子：
1.5
通讯作者：
N. Nishizawa;Y. Ito;T. Goto
中科院分区：
文献类型：
--
作者：
N. Nishizawa;Y. Ito;T. Goto
利用光纤激光器、周期性极化铌酸锂和光子晶体光纤（PCF）实现了0.78-1.0 μm波长可调谐飞秒孤子脉冲的产生。通过改变光纤输入功率，所产生的脉冲的波长简单地连续和单调地变化。所产生的脉冲的时间宽度为约55和94 fs的0.6和2米的光子晶体光纤，分别。产生的脉冲是无基座透明脉冲，相应的时间带宽积约为0.38。利用扩展的非线性薛定谔方程分析了产生的孤立子脉冲的特性，数值结果与实验结果基本一致。该系统结构紧凑，实用性强。当使用2 m的PCF时，观察到在泵浦脉冲的较短波长侧产生反斯托克斯脉冲。
The 0.78–1.0 µm wavelength-tunable femtosecond soliton pulse generation is demonstrated using a fiber laser, periodically poled LiNbO3 and photonic crystal fibers (PCFs). The wavelengths of the generated pulses are varied continuously and monotonically simply by varying the fiber input power. The temporal widths of the generated pulses are about 55 and 94 fs for 0.6 and 2 m of PCFs, respectively. The generated pulses are pedestal-free clear pulses and the corresponding time-bandwidth products are about 0.38. Characteristics of generated soliton pulses are analyzed using the extended nonlinear Schrödinger equation and the numerical results are almost in agreement with the experimental ones. This system is very compact and useful for practical applications. When 2 m of PCF is used, generation of anti-stokes pulse at the shorter wavelength side of the pump pulse is observed.