Femtosecond-response, highly third-order nonlinear 4-(N, N-dimethylamino)-3-acetamidonitrobenzene crystal cored fiber
Femtosecond-response, highly third-order nonlinear 4-(N, N-dimethylamino)-3-acetamidonitrobenzene crystal cored fiber
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飞秒响应、高三阶非线性4-(N,N-二甲氨基)-3-乙酰胺硝基苯晶芯光纤
DOI：
10.1063/1.103465
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
T. Uemiya
中科院分区：
文献类型：
--
作者：
M. Yamashita;K. Torizuka;T. Uemiya
通过观察由于光纤中色散自相位调制和传统熔融石英光纤中的色散自相位调制而导致的 250 fs 脉冲的光谱展宽，评估了长度为 3.9 mm、纤芯半径为 2.3 μm 的 4-(N, N-二甲基氨基)-3-乙酰胺硝基苯 (DAN) 单晶芯光纤的非线性折射率 n2.DAN。结果表明，在625 nm左右的非吸收波长区，飞秒响应n2.DAN的值是后者玻璃光纤的1.7×104倍。
A nonlinear refractive index n2.DAN of a 4‐(N, N‐dimethylamino)‐3‐acetamidonitrobenzene (DAN) single‐crystal cored fiber of 3.9 mm length and 2.3 μm core radius is evaluated by observing the spectral broadening of a 250 fs pulse due to dispersive self‐phase modulation in its fiber and that in a conventional fused‐silica fiber. The result shows that the value of the femtosecond‐response n2.DAN in the nonabsorbing wavelength region around 625 nm is 1.7×104 times as large as that of the latter’s glass fiber.