该全光脉冲整形器利用波分复用器将控制光脉冲引入光纤环形镜中,控制光脉冲由于交叉相位调制在信号光上产生了非线性附加相移。
Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
本文研究了一种新型混沌编码的脉冲位置和相位复合调制的脉冲压缩雷达信号。
In this paper, a new Chaotic Pulse Position and Phase Coded Pulse Compression Radar (CPPPC PCR) signal is studied.
结果表明:自相位调制不影响混沌信号脉冲的形状,但能产生非线性相移使混沌信号频谱展宽;
Self-phase modulation of fiber does not affect the pulse shape of chaotic signal, however, its product of nonlinear phase shift can widen the chaotic signal spectrum.
本文研究了随机脉冲位置调制与脉冲之间随机相位调制相结合的脉冲多卜勒雷达信号。
In this paper, a PD radar signal is researched, which is modulated by randomly staggered pulse sequence whose phase is also modulated by random binary-phase code.
提出一种在负色散区利用交叉相位调制效应压缩基本孤子脉冲的新方法。
In this paper, a new method to compress fundamental soliton pulses in the anomalous dispersion regime through cross phase modulation for pump pulse and soliton pulse is proposed.
结果表明:啁啾光脉冲的振幅调制深度和相位扰动深度越大,则压缩后的光脉冲对比度越小;啁啾光脉冲的振幅调制周期和相位扰动周期越小,则压缩光脉冲的预脉冲宽度越大。
The simulations show that more amplitude modulations and phase perturbations lead to lower contrast of the compressed pulse, and bigger modulation cycle results in wider pre-pulse width.
尾波场效应导致脉冲自相位调制的不对称性,其大小与初始脉冲形状和脉宽大小有关。
The effect of wakefield, which depends on the initial pulse shape and width, leads to the asymmetry of pulse self phase modulation.
利用最小二乘算法实现对三维平面的拟合,采用的是脉冲对消法,非归零型差分相位调制信号建模与仿真分析。
Least-squares algorithm to fit a three-dimensional plane, it USES a pulse of consumer law, NRZ type differential phase modulation signal modeling and simulation analysis.
通过研究它的光学特性,我们发现,由于自相位调制(SPM),NOLM有压缩光脉冲脉宽的功能。
Firstly, we find that NOLM has a function of compressing optical pulse width, self-phase modulation (SPM) in NOLMs is a crucial reason.
结果表明:啁啾光脉冲的振幅调制深度和相位扰动深度越大,则压缩后的光脉冲对比度越小;
The influences of the SPM with amplitude modulations and phase perturbations on the compressed pulse is simulated.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
合适的初始脉冲时延和初始脉冲啁啾有利于频域相位共轭技术对交叉相位调制所致信号失真的抑制。
Suitable initial time delay and pulse chirp of pulses can improve the suppression and compensation for the distortion.
研究结果表明,群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低,非线性相位调制使二倍频光脉冲形状发生畸变,降低转换效率。
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
结果表明,利用交叉相位调制效应压缩光脉冲时,无论泵浦脉冲还是信号脉冲,其线性源啁啾都对光脉冲的压缩产生重要影响。
It is found that not only the chirped pump pulse but also the chirped soliton pulse have great effects on the soliton pulse compression in anomalous dispersion regime. Fo...
第五章:研究了在色散平坦渐减光纤中,交叉相位调制效应对光脉冲的传输以及超连续谱产生的影响。
Chapter5: The effect of cross-phase modulation (XPM) on pulse propagation and SC spectrum generation in a dispersion-flattened and decreasing fiber are researched.
本文主要分析光纤色散以及有初始啁啾的脉冲、激光器的相位调制噪声、有非线性效应时光纤色散对WDM系统传输容量的影响。
This paper mainly analyzes some effective factors on the transmission capacity of WDM systems, such as optical fiber dispersions, the pulse with original chirps, the...
该方案采用直调激光器配合相位调制器产生大啁啾并由DCF压窄输出光脉冲。
Directly modulated laser combining with phase modulator is adopted to produce large chirped light, which can be compressed by DCF to generate the optical pulse.
在双波长钛宝石激光器中通过交叉相位调制实现了飞秒和皮秒脉冲的交叉锁模,得到了被动同步的飞秒和皮秒脉冲。
Passively synchronized femtosecond and picosecond laser pulses are obtained by achieving cross mode-locking induced by cross-phase modulation in a dual-wavelength femtosecond ti: sapphire laser.
在群速度色散和自相位调制的共同作用下,可用分步傅里叶方法模拟初始啁啾对高斯脉冲在光纤中传输的影响。
Then the effects of higher-order group-velocity dispersion (GVD) on SC generation in different fibers are analyzed and contrasted in details through simulation.
在群速度色散和自相位调制的共同作用下,可用分步傅里叶方法模拟初始啁啾对高斯脉冲在光纤中传输的影响。
Then the effects of higher-order group-velocity dispersion (GVD) on SC generation in different fibers are analyzed and contrasted in details through simulation.
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