外腔可调谐直调激光器的研究

发布时间：2018-03-24 11:00

本文选题：外腔可调谐激光器　切入点：耦合性能　出处：《武汉邮电科学研究院》2015年硕士论文

【摘要】：近些年在光通信领域，半导体激光器在通信光源方面发挥着重要作用，半导体激光器的性能也得到迅速提升。伴随着WDM波分复用光传输系统应用开发的不断深入，对光源激光器各项指标也都提出更高的要求。基于混合集成小型化的外腔可调谐激光器具有实现工艺简单，信号质量好和调谐范围宽等优良特点，受到越来越多研究机构和学者们的关注和研究。外腔可调谐激光器因其具有较长外腔和外部的模式选择器件，导致其在工艺封装和调制特性上与普通激光器有所不同。本文针对现有几种不同外腔可调谐激光器的应用进行了详细的研究，对不同调谐机制和特性进行了逐一分析，对半导体激光器和外腔可调谐激光器的基本理论进行了全面的阐述，分析了外腔可调谐激光器的基本特性。然后研究了现阶段有源芯片与无源波导的耦合原理和光路结构，设计了一款硅光透镜，模拟分析和实际测试透镜的耦合性能。最后，研究分析了直调外腔可调谐的直接调制特性，将影响直调外腔可调谐激光器的影响因素划分为光域延迟和电域延迟，理论研究推导了其影响因素并模拟分析，开发测试外腔可调谐激光器，搭建实验测试平台，，实际测试分析其影响因子对直调特性的作用效果。本文的研究内容对外腔可调谐激光器的在设计封装设计和直调应用研究上具有一定的参考价值。
[Abstract]:In recent years, semiconductor lasers have played an important role in the field of optical communication, and the performance of semiconductor lasers has been rapidly improved. With the development of WDM wavelength division multiplexing optical transmission system, Based on the hybrid integrated miniaturization external cavity tunable laser has the advantages of simple technology, good signal quality and wide tuning range. Due to its long external cavity and external mode selection devices, the external cavity tunable laser is different from the conventional laser in process encapsulation and modulation characteristics. In this paper, the applications of several kinds of tunable lasers with different external cavities are studied in detail, and the different tuning mechanisms and characteristics are analyzed one by one. The basic theories of semiconductor lasers and external cavity tunable lasers are expounded, and the basic characteristics of external cavity tunable lasers are analyzed. Then, the coupling principle and optical structure of active chip and passive waveguide are studied. A silicon optical lens is designed, and the coupling performance of the lens is analyzed and simulated. Finally, the tunable direct modulation characteristics of the tunable external cavity are studied and analyzed. The influence factors of tunable laser with tunable external cavity are divided into optical delay and electric delay. The influence factors are studied and analyzed theoretically, the tunable laser is developed and tested, and the experimental test platform is built. The effect of the influence factors on the direct-modulation characteristics is tested and analyzed. The research content of this paper has some reference value in the design and packaging design of external cavity tunable laser and the research of direct-tuning application.
【学位授予单位】：武汉邮电科学研究院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN248

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