Photochromic liquid-core fibers with nonlinear input-output characteristics
Photochromic liquid-core fibers with nonlinear input-output characteristics
复制标题
具有非线性输入输出特性的光致变色液芯光纤
DOI：
10.1109/jlt.2003.817703
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发表时间：
2003
影响因子：
4.7
通讯作者：
K. Uchida
中科院分区：
文献类型：
--
作者：
M. Saito;A. Honda;K. Uchida
采用苯或螺苯吡喃的2-丙醇溶液制备了光致变色液芯纤维。由苯溶液芯和硅玻璃包层组成的纤维元件具有可变的透过率，可由紫外线照射控制。当以波长为532nm的可见激光束作为输入信号时，由于光显色性反转，输出信号功率随输入功率非线性增加。当用2-丙醇溶液和聚合物涂层玻璃管构建纤维时，在没有紫外线的情况下观察到这种非线性输入输出特性。这些实验结果与基于简单光致变色光纤模型的理论预测一致。
Photochromic liquid-core fibers were fabricated by using benzene or 2-propanol solution of spirobenzopyran. The fiber element consisting of a benzene-solution core and a silica-glass cladding exhibited variable transmittance that was controlled by ultraviolet irradiation. When a visible laser beam (532-nm wavelength) was used as input signal, output signal power increased nonlinearly with input power due to reversed photochromism. This nonlinear input-output characteristic was observed without ultraviolet light, when a fiber was constructed with 2-propanol solution and a polymer-coated glass tube. These experimental results agreed with the theoretical prediction that was based on a simple photochromic fiber model.