PULSEWIDTH CONTROL OF ULTRA-SHORT OPTICAL PULSES GENERATED FROM SEMICONDUCTOR LASER DIODE BY OPTICAL PULSE COMPRESSION METHOD

在这个项目中。本论文的主要工作是从半导体激光器中产生超短光脉冲，并利用光脉冲压缩技术控制脉冲宽度。通过本课题的研究，取得了以下成果：A.在大信号理论下，对半导体激光器产生超短光脉冲进行了分析研究。研究结果揭示了激光器参数和工作条件对激光器性能的定量依赖关系.提出了直接脉冲压缩的方法，并利用Gires-Tournois干涉仪进行了实验研究。由此获得的最短脉冲宽度为6.5ps，压缩比为4.6。对实验结果进行了分析和解释.实验研究了多量子阱半导体激光器产生短脉冲的特性。结果表明，多量子阱半导体激光器具有上级特性的短脉冲产生。

In this project. We intend to pursue both the experimental and theoretical studies of the ultrashort optical pulse generation from diode lasers and their width control by the optical pulse compression. The following results have been successfully obtained through this research project.A. The analytical studies have been done on ultra short optical pulse generation from semiconductor lasers under the large signal theory. The result explores the the quantitative dependence on the laser parameters as well as operating conditions.B. The direct pulse compression was proposed and performed experimentally using the G-T (Gires-Tournois) interferometer. Shortest pulsewidth thus obtained was 6.5 ps with the compression ratio of 4.6. The analysis was also performed and experimental results were well explained.C. Short pulse generation from multiple quantum well (MQW) laser diode was also studied experimentally. The result implies MQW laser diode has superior characteristics for the short pulse generation.