1 信息工程大学 信息工程学院,郑州 450002
2 解放军61085部队,杭州 311200
研究了重复频率高功率微波脉冲作用下的大气击穿。分析了重复频率脉冲作用下电子的弛豫过程,对脉冲间隔时间内电子温度和自由电子密度的变化规律进行了研究,得出了电子温度弛豫时间远小于电子密度弛豫时间的结论。分析了电子弛豫过程的附着效应和复合效应,给出了高功率微波重复频率脉冲作用下发生大气击穿的条件和重复频率高功率微波大气击穿的电子数密度方程。
高功率微波 电子弛豫过程 重复频率 大气击穿 high power microwave electronic relaxation process repetition frequency air breakdown
Author Affiliations
Abstract
1 National Laboratory on Local Fiber-Optic Networks and Advanced Optical Communication Systems, Electronics Department, Peking University, Beijing 100871
2 Zhengzhou Information Technology Institute, Zhengzhou 450002
The time and amplitude characteristics of the transient power overshoot caused by channels adding up are studied both experimentally and numerically in the backward-pumped Raman amplified wavelength division multiplexing (WDM) system. The results show that the shorter the signal wavelength is, the smaller the last time of the transient power overshoot will be. The maximal power overshoot is small and does not deadly damage the optical component, and the channel distribution of the maximal value of the power overshoot has similar curve in shape with that of the system ON-OFF gain.
060.2330 fiber optics communications 060.2320 fiber optics amplifiers and oscillators 290.5910 scattering stimulated Raman Chinese Optics Letters
2004, 2(9): 09503
