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随着集成化程度的不断提高,对非线性光波导制备的各种集成光电子器件的研究成为了当前热点。然而,传统基质材料受自身的非线性特性所限,成为制约光波导器件进一步发展的首要问题。介绍了硫系玻璃材料三阶非线性的研究现状。研究表明,硫系原子在强光作用下容易发生电子云畸变,非线性响应时间可达飞秒数量级,且非线性折射率与金属共价键有着重要的关联。从基质种类、制备工艺和非线性应用领域等方面回顾了硫系基质光波导的研究进展。针对目前研究中存在的问题,提出环保型的基质材料、完善的制备工艺和新型的光波导器件将是未来硫系基质光波导的研究方向。
With the continuous improvement of the degree of integration, the research of various integrated optoelectronic devices prepared by nonlinear optical waveguides has become the current hot spot. However, the traditional matrix materials are limited by their own non-linear characteristics, becoming the primary problem that restricts the further development of optical waveguide devices. The research status of third-order nonlinearity of sulfur-based glass materials is introduced. The results show that the sulfur atoms are prone to electron cloud distortion under the action of strong light, the nonlinear response time can reach the order of femtosecond, and the nonlinear refractive index has an important relationship with the metal covalent bond. The research progress of sulfur-based matrix optical waveguides is reviewed from the aspects of matrix type, preparation technology and non-linear application fields. In view of the existing problems in the research, it is proposed that the environment-friendly matrix material, the perfect preparation technology and the new optical waveguide device will be the research direction of the sulfur-based matrix optical waveguide in the future.