激光与光电子学进展, 2012, 49 (6): 060604, 网络出版: 2012-05-04   

高功率高效率掺铒光纤超荧光光源

High-Power, High Efficiency Erbium-Doped Superfluorescent Fiber Source
作者单位
1 深圳大学信息工程学院, 广东 深圳 518060
2 深圳市激光工程重点实验室,深圳大学电子科学与技术学院, 广东 深圳 518060
摘要
优化设计了高功率、高效率掺铒光纤超荧光光源的参数。采用商用掺铒光纤,针对双程后向结构,首先仿真了光源输出功率和带宽随掺铒光纤长度的变化,并用对等实验验证了模拟结果,初步确定掺铒光纤长度的优化范围;理论研究了反射镜反射率对光源性能的影响,计算出最佳反射率并模拟了该反射率下光源的输出光谱;实验研究了抽运功率对光源平均波长的影响,确定了优化的抽运功率范围,并进一步确定了掺铒光纤的优化长度。实验选用110 mW抽运功率,13.74 m掺铒光纤,获得了输出功率为46.9 mW 的高功率光纤光源,其抽运转换效率可达42.6%,且光源保持了约34.54 nm的宽带宽。
Abstract
The optimization parameters of high-power, high-efficiency erbium-doped superfluorescent fiber source are designed. Using commercial erbium-doped fiber, focusing on the double-pass backward architecture, the influences of the fiber length on output power and spectrum width of fiber source are simulated firstly. Then the corresponding experiments are done to validate the simulation results, thus to confirm the initial optimization fiber length ranges. The influences of reflectivity on fiber source performance are studied theoretically. The optimized reflectivity is calculated and the output spectra of fiber source under this reflectivity are simulated. The influences of pump power on mean wavelength are studied experimentally and the optimized pump power is confirmed, and thus the final optimized fiber length is further achieved. With 110 mW pump power and 13.74 m fiber length, we obtain the high power fiber source of 46.9 mW with the pump efficiency as high as 42.6% and the spectrum width of 34.54 nm.
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张力, 刘承香, 阮双琛, 钱恭斌, 吴旭. 高功率高效率掺铒光纤超荧光光源[J]. 激光与光电子学进展, 2012, 49(6): 060604. Zhang Li, Liu Chengxiang, Ruan Shuangchen, Qian Gongbin, Wu Xu. High-Power, High Efficiency Erbium-Doped Superfluorescent Fiber Source[J]. Laser & Optoelectronics Progress, 2012, 49(6): 060604.

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