摘要：在分析单区DFB激光器静态和动态特性的基础上 ,用数值模拟方法研究了双区DFB器件自脉动的产生机理及特性 .研究表明通过优化设计DFB激光器件的一些参量和控制激光器的外部条件 ,可以有效地提高自脉动的频率 ,增强自脉动的稳定性 ,为全光信号再生设备的研制提供理论基础 .

摘要：高等教育发展过程中推进科教融汇是培养现代化工科创新人才的重要突破口。文章以光纤通信中的光纤光缆章节为例,依据课程教学过程中出现的问题,将一些现代化教学手段融入到课程当中。我们主要从三个角度对课程进行了教学改革探索,具体内容包括在线教育平台与微视频的创建、计算机仿真模拟的二维或三维的可视化演示、以及计算机仿真与实验融合教学。从而达到理论教学、计算机仿真、实验教学三种教学手段间相互补充,内容统一。这些课程改革内容紧紧围绕科教融汇,产融结合的教育理念,希望为其他课程改革提供一些参考,并为培养现代化建设的新工科人才的改革举措方面做出一点贡献。Promoting the integration of science and education in college is an important breakthrough in cultivating modern innovative talents. The article takes the section on optical fibers and cables in optical communication as an example, and integrates some modern teaching methods into the curriculum based on problems encountered during the course teaching process. We mainly explore the teaching cases from three perspectives, specifically, the content in this article includes the creation of online education platforms and micro-videos, two-dimensional or three-dimensional visualizations of computer simulations, and the integration of computer simulation and experiments. In order to achieve the three teaching methods of theoretical teaching, computer simulation and experimental teaching, they complement each other and the content is unified. These curriculum reforms closely focus on the educational concept of integrating science and education and combining industry and finance, hoping to provide some reference for other curriculum reforms and make a little contribution to the reform measures of cultivating new engineering talents for modernization.

摘要：提出了一种新型的双区DFB激光器件,对该器件产生自脉动效应的机理给出了理论分析,并以该器件作为光时钟恢复模块,对它的特性进行了数值模拟.基于该器件的光时钟恢复模块同原有的双区DFB激光器相比,具有自脉动频率高、调谐范围大的优点;同原有的多区DFB激光器件相比,具有结构简单等优点.

摘要：大数据技术在配电网工程管理中的应用越来越广。当下,多数配电变台工程项目在数据处理方面能力有限,对需要重点管控的建设成本偏差指标的识别能力较弱,导致配电变台工程中长期存在的一些偏差指标难以得到及时地管控。设计基于模糊Petri网理论配电变台工程建设成本偏差指标的诊断模型及预警机制,并通过案例分析诊断出配电变台工程建设成本中须进行重点管控的偏差指标,预警后续可能会出现偏差的建设成本指标。所提出的诊断与预警方法可以为配电变台工程成本管理提供新思路。