论文标题
多光子吸收激发光纤中的上流发光
Multiphoton absorption excited upconversion luminescence in optical fiber
论文作者
论文摘要
我们在实验上证明了光纤中的新型非线性效应：通过飞秒红外脉冲的多光子吸收而激发的上转化发光产生。我们直接通过改变泵源的波长来直接估计上转换过程中涉及的光子的平均数量。我们强调了非桥接氧孔中心和缺氧缺陷中心缺陷的作用，并直接将侧散射发光的强度与脉冲传播的数值模拟进行了比较。
We experimentally demonstrate a novel nonlinear effect in optical fibers: upconversion luminescence generation excited by multiphoton absorption of femtosecond infrared pulses. We directly estimate the average number of photons involved in the up-conversion process, by varying the wavelength of the pump source. We highlight the role of non-bridging oxygen hole centers and oxygen deficient center defects, and directly compare the intensity of side-scattered luminescence with numerical simulations of pulse propagation.
