Finally, the optimal pumping power and fibre length are obtained, which can be used for the design of fibre Raman amplifier.
文中最后得出了设计光纤拉曼放大器时的最优抽运功率和光纤长度。
A Raman optical pump source 208 that generates a Raman optical pumping signal is optically coupled into the optical fiber span 206 with an optical coupler 210.
产生拉曼光泵浦信号的拉曼光泵浦源208通过光耦合器210被光耦合进入光纤段206。
A novel numerical model and an efficient algorithm are developed to calculate the powers of signal and noise light waves in multiple wavelengths bidirectionally pumping fiber Raman amplifiers.
通过合理分析提出了便于计算多波长双向抽运光纤拉曼放大器信号及噪声功率的实用数值模型，给出求解信号和噪声功率的快速算法。
In other embodiments, the power of at least one of the optical data signals and the Raman optical pumping signal is reduced to zero.
在其它的实施例中，光数据信号和拉曼光泵浦信号中的至少一个的功率被降低到零。
In some embodiments, the power of at least one of the optical data signals and the Raman optical pumping signal is reduced to an eye-safe optical power level.
在一些实施例中，光数据信号和拉曼光泵浦信号中的至少一个的功率被降低到安全标准的光功率级。
The filtered portion of the Raman optical pumping signal is then detected by the optical detector 224, 320.
然后，通过光检测器224，320检测经滤波的部分拉曼光泵浦信号。
The Raman optical pumping signal amplifies the optical data signals propagating on the optical fiber span 206.
拉曼光泵浦信号放大在光纤段206上传播的光数据信号。
The controller 228, 328 then generates electrical and optical signals that are related to a magnitude of the filtered portion of the Raman optical pumping signal.
控制器228，328此时产生与经滤波的部分拉曼光泵浦信号大小相关的电和光信号。
The optical coupler 424 launches the Raman optical pumping signal in a direction that co-propagates with the optical data signals that are generated by the optical source 402.
光耦合器424沿着与光源402产生的光数据信号同向传播的方向发射拉曼光泵浦信号。
In many optical communications systems, the Raman optical pumping signals exceed Class I m limits and have significantly higher power levels than the optical data signal.
在许多光通信系统中，拉曼光泵浦信号超过1 M级界限并具有比光数据信号明显高的功率级。
The Raman optical pumping signal can exceed Class 1 M limits and, in fact, can have a much higher optical power than the optical data signal.
拉曼光泵浦信号可以超过1M级界限，实际上，可以具有比光数据信号明显高的光功率。
Considering the competing effect of Raman scattering, the dependence of intensity of parametric backward wave oscillation on the pumping intensity is obtained.
考虑受激喇曼散射的竞争效应，求得了简并四波混频后向波参量振荡信号强度与泵浦输入强度的关系。
Using a tapered waveguide Raman cell, the interaction region between the pumping laser beam and Raman media is increased.
采用斜波导的喇曼氢气池，使泵浦激光束在波导内部传播，增大了受激喇曼散射的作用区域。
The Raman gain spectra obtained in different conditions are discussed and analyzed. Based on this, the pumping pattern going to be used in our design is decided.
对不同泵浦方式下的不同拉曼增益谱作了比较和分析，在此基础上，确定了所设计的光纤拉曼放大器采用的泵浦方式。
The Raman gain spectra obtained in different conditions are discussed and analyzed. Based on this, the pumping pattern going to be used in our design is decided.
对不同泵浦方式下的不同拉曼增益谱作了比较和分析，在此基础上，确定了所设计的光纤拉曼放大器采用的泵浦方式。
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