Experimental and numerical determination of coupling constant in a multicore fiber
Experimental and numerical determination of coupling constant in a multicore fiber
复制标题
多芯光纤耦合常数的实验和数值测定
DOI：
10.1016/s0030-4018(99)00747-6
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发表时间：
2000
影响因子：
2.4
通讯作者：
A. G. Sukharev
中科院分区：
文献类型：
--
作者：
M. Wrage;P. Glas;M. Leitner;T. Sandrock;N. N. Elkin;A. Napartovich;A. G. Sukharev
本文首次报道了波长为1.064 μm的多芯光纤耦合常数的测量结果。在多芯几何结构中，各个微芯被放置在泵芯内的直径为115 μm的环上。相邻芯之间的距离约为2.7 μm，而每个芯的直径约为6.9 μm。芯通过渐逝场耦合。对整个系统进行了数值模拟。测得的耦合常数2cexp=0.82 mm− 1与数值模拟得出的值2cth=0.83 mm− 1非常一致。
We report for the first time on measurements of the coupling constant in a multicore fiber at a wavelength of 1.064 μm. In the multicore geometry the individual microcores are placed on a ring of 115 μm diameter inside a pump core. The distance between adjacent cores is about 2.7 μm while the diameter of each core is approximately 6.9 μm. The cores are coupled via evanescent fields. The whole system is simulated numerically. The measured coupling constant of 2cexp=0.82 mm−1is in good agreement with the value 2cth=0.83 mm−1derived from numerical simulations.