由可调谐半导体激光器产生一个啁啾信号,通过测量拍信号频率计算距离。
A tunable GaAlAs diode laser is used as a chirp signal source, the distance is detected by calculating the beat frequency.
分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。
The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.
雷达信号,其中包括啁啾或相位编码的品种,很容易和快速地对一个单杆基础的特点。
Radar signals, including chirped or phase-coded varieties, are easily and quickly characterized on a single-shot basis.
对基于半导体光放大器中交叉增益调制效应的波长转换后信号的啁啾特性进行了分析。
The chirp performance of converted signal in wavelength conversion based on cross gain modulation (XGM) in semiconductor optical amplifier (SOA) was analyzed.
系统的输出信号的偏振度还随着信号原始啁啾系数绝对值的增大而减小,但与啁啾系数的符号无关。
And it decreases also with the increase of absolute value of the initial pulse chirp coefficient, but has no relation with the sign of chirping coefficient.
文中对小信号调制下单量子阱激光器的啁啾特性进行了研究和分析。
In this paper, the chirping characteristics of quantum well laser diodes under small signal modulation are studied.
研究发现,较大的激光器注入电流可以有效地抑制频率啁啾,较高的注入信号光功率则可以在保证高转换信号消光比的同时抑制频率啁啾。
The results show that higher injected current can restrain the frequency chirp effectively, and higher input optical power can also do that, meanwhile, good extinction ratio is ensured.
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.
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...
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...
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