光学学报, 2015, 35 (8): 0816003, 网络出版: 2015-08-10
基于硫系玻璃/碲酸盐玻璃复合微结构光纤的红外超连续谱输出特性研究
Infrared Supercontinuum Generation in Chalcogencide-Telluritecompound Microstructured Optical Fiber
材料 非线性光学 红外超连续谱 有限元法 复合微结构光纤 色散 materials nonlinear optics infrared supercontinuum finite element method compound microstructured optical fiber dispersion
摘要
设计了一种以As2Se3 硫系玻璃作纤芯碲酸盐玻璃为包层两层空气孔环绕的复合微结构光纤，利用有限元法(FEM)计算了光纤的色散和损耗特性，并采用自适应分步傅里叶算法求解广义非线性薛定谔方程(GNLSE)，数值模拟了波长为2.5 μm，脉宽为200 fs的光脉冲在长15 cm 光纤中的传输特性，比较分析了不同波长、脉宽、峰值功率的超短脉冲作用下红外超连续谱输出特性。
Abstract
The design of a compound microstructured optical fiber whose core is fabricated with the chalcogenide glass of As2Se3 and cladding made of tellurite glass is presented. The cladding is distributed with two rings of air holes. The dispersion and loss properties of the fiber is studied using a finite element method (FEM). With an adaptive split-step Fourier method-based solver for the generalized nonlinear schrodinger equation (GNLSE), the transmission of a 2.5 μm pump pulse with a width of 200 fs in a 15 cm fiber is numerically simulated. The properties of the infrared supercontinuum spectrum is also studied under different peak powers, pulse widths, and pump wavelengths.
汪翠, 戴世勋, 杨佩龙, 张培晴, 王训四, 刘自军, 陈飞飞, 沈祥, 聂秋华. 基于硫系玻璃/碲酸盐玻璃复合微结构光纤的红外超连续谱输出特性研究[J]. 光学学报, 2015, 35(8): 0816003. Wang Cui, Dai Shixun, Yang Peilong, Zhang Peiqing, Wang Xunsi, Liu Zijun, Chen Feifei, Shen Xiang, Nie Qiuhua. Infrared Supercontinuum Generation in Chalcogencide-Telluritecompound Microstructured Optical Fiber[J]. Acta Optica Sinica, 2015, 35(8): 0816003.
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