Measuring the spatial distribution of rare-earth dopants in high-power optical fibers
Measuring the spatial distribution of rare-earth dopants in high-power optical fibers
复制标题
测量高功率光纤中稀土掺杂剂的空间分布
DOI：
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复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
A. Yablon
中科院分区：
文献类型：
--
作者：
A. Yablon
For the first time, a non-destructive technique for spatially resolving the location and relative concentration of rare-earth dopants in an optical fiber is demonstrated. This novel technique is based on computerized tomographic detection of spontaneous emission and achieves micron-scale spatial resolution with the aid of oil-immersion imaging. In addition to elucidating interactions between the signal, pump, and dopant distributions, the measurement described here can reveal shortcomings in fiber manufacturing. Since the technique is non-destructive and can be scanned along the fiber length, it can map the full 3-dimensional distribution of complex rare-earth-doped fiber structures including gratings, physical tapers, fusion splices, and even couplers. Experimental data obtained from commercially available Yb-doped silica optical fibers is presented, contrasted, and compared to refractive index profile data. In principle the technique can also be applied to Er-, Bi-, or Tm-doped silica or non-silica optical fibers.
DOI：
10.1364/josab.27.000b63
发表时间：
2010-11-01
影响因子：
1.9
作者：
Richardson, D. J.;Nilsson, J.;Clarkson, W. A.
通讯作者：
Clarkson, W. A.