【摘要】 提出一种简单的理论模型 ,并通过数值模拟详细研究了可调谐光纤环形腔激光器的输出特性随掺铒光纤长度、输出耦合比、抽运功率、腔内损耗等参量的变化关系 .理论分析得到 ,通过参量优化可以实现在铒离子增益范围内超过 130nm带宽 (15 0 0— 16 30nm)的激光输出 .实验获得了 10 0nm带宽 (15 18 5— 16 18 5nm)的可调谐激光输出 ,激光器输出功率高 ,信噪比在大部分可调范围内高于 6 0dB ,实验结果与理论分析符合得较好更多还原

【Abstract】 Output characteristics of a tunable fiber ring laser are studied both by theoretical modeling and by experimentation. Dependencies of laser output power on lasing wavelength, pump power, erbium doped fiber (EDF) length, output coupling ratio, and intra cavity loss are demonstrated by using a simple theoretical model. It is shown that a wide tunable range over 130nm (i.e.1500—1630nm) can be obtained through parameter optimization. As a result, the laser with a tunable range up to 100nm, high output power, and high signal to noise ratio in most of the tunable range has been achieved in experimentation. The experimental data are in good agreement with the theoretical modeling results.更多还原