电流调制 meaning in Chinese
current modulation
Examples
- Beam current modulation
束电流调制 - It is found that the electron beam may approach ideal bunching . high power microwave pulses with tunable frequency can be generated by post - accelerating the electron beam and carefully designing the extraction cavity . in terms of the pic simulation , the output power of 1 . 25gw at 2 . 2ghz and 480mw at 4 . 4ghz in axial acceletron have been obtained
用增加中间腔的办法，大大提高了前两阶谐波电流分量，数值计算结果表明，其中一阶谐波电流调制系数达到了140 ，二阶谐波电流调制系数达到了68 ，通过改变提取腔的设计，可选择不同频率的输出，其一次谐波频率为2 . 2ghz ,输出功率为1 . 25gw ,效率为9 . 33 ，二次谐波频率为4 . 4ghz时，输出功率为0 . 48gw ，效率为3 . 6 。 - For micro - cavity semiconductor laser , station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised . for current noise , sp noise , noise , p noise , as well as current modulation , sp modulation , modulation and p modulation , using small - signal approximation , we derive the laser ' s corresponding transfer functions . and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文对于微腔半导体激光器，提出站模型，能够较直观简洁地分析微腔半导体激光器的稳态和瞬态特性，利用此模型对具有重要实用价值的= 1的微腔半导体激光器进行了讨论；对于电流i噪声、自发发射寿命_ ( sp )噪声、自发发射因子噪声、光子寿命_ p噪声，以及电流调制、 _ ( sp )调制、调制、 _ p调制，在小信号近似下，得到了相应的激光器的传递函数；在大信噪比的前提下，对激光器进行了频域分析，分别计算了它们在不同参数下的信噪比增益，分析了其抗噪声性能。