机构地区: 北京邮电大学电子工程学院
出 处: 《光学精密工程》 2006年第2期155-158,共4页
摘 要: 在分析拉曼光纤放大器(RFA)原理的基础上,采用遗传算法对5波长后向泵浦拉曼光纤放大器的波长和功率进行了优化设计。实验采用位于5个波长处的7个泵浦激光器和100.8 km的色散位移光纤,实现了带宽为90 nm、开关增益为15.55 dB、增益平坦度为0.87 dB的拉曼放大,其平均有效噪声系数为-3.5 dB,与理论分析结果一致。 Based on analyzing the principle of the Raman Fiber Amplifier(RFA), optimal design of a backward pumping Raman fiber amplifier with five different pump wavelengths was carried out. With seven pump lasers at five different wavelengths and a 100.8 km dispersion-shift fiber, a broadband optical Raman fiber amplifier with gain band over 90 nm, on off gain of 15.55 dB, gain flatness below 0.87 dB and average effective noise coefficient of -3.5 dB was demonstrated experimentally. The experimental results agree with the theoretical calculation.
关 键 词: 拉曼光纤放大器 色散位移光纤 开关增益 增益平坦 有效噪声系数
领 域: [电子电信]