论文部分内容阅读
将激光器和脉冲位置调制(PPM)技术作为一个整体分析研究,提出了基于光纤激光器的PPM特性方面的概念。对脉冲调Q光纤激光器单脉冲能量、峰值功率、脉冲宽度进行了理论研究,通过仿真得出了脉冲调Q光纤激光器峰值功率与激光器震荡参数之间的特性曲线,再结合3种PPM信号模型分析了光纤激光器的震荡参数N与3种PPM方式的传输速率、所需功率以及所需带宽之间的关系。并通过实验仿真,得出了光纤激光器的抽运功率、初始通过率和腔长对3种PPM方式的传输速率以及所需带宽的影响。
Taking the laser and pulse position modulation (PPM) technology as a whole analysis and research, the concept of fiber laser-based PPM characteristics is proposed. The single-pulse energy, peak power and pulse width of pulsed Q-switched fiber laser are theoretically studied. The characteristic curves between the peak power of pulsed Q-switched fiber laser and the laser oscillation parameters are obtained by simulation. Combined with the analysis of three PPM signal models The relationship between the oscillation parameter N of fiber laser and the transmission rate of the three kinds of PPM, the required power and the required bandwidth is discussed. Through experimental simulation, the influence of the pumping power, initial pass rate and cavity length of the fiber laser on the transmission rate and the required bandwidth of the three kinds of PPM are obtained.