基于模式自锁定F-P激光器的ns量级快速波长可调谐激光器研究

项目名称： 基于模式自锁定F-P激光器的ns量级快速波长可调谐激光器研究

项目编号： No.61205061

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 信息四处

项目作者： 王文睿

作者单位： 天津大学

项目金额： 27万元

中文摘要： 快速波长可调谐激光器由于其在光分组交换网络中的巨大应用前景，成为光通信领域的关注焦点。电光调谐的半导体波长可调谐激光器理论调谐速率可达ns量级，但现有方案需要对多个控制变量进行精确匹配，控制系统的复杂性极大地降低了波长可调谐激光器的实际调谐速率。项目组提出了基于模式自锁定F-P激光器实现波长快速可调谐的方案，本方案通过控制单一变量实现了输出波长快速调谐，降低了控制复杂性。并对该方案进行了初步的实验验证。进一步的工作包括：建立该新型快速波长调谐激光器的理论模型；分析驱动电流瞬态变化情况下激光器振荡建立和消逝的物理过程；优化器件设计和工作参数，缩短波长切换时间，提高输出激光质量。最终实现单一控制量、调谐速率<5ns,调谐范围>30nm，边模抑制比>50dB,线宽<1MHz的快速波长可调谐激光器。作为验证，基于该激光器实现40Gb/s快速波长可调谐的全光波长变换，为光分组交换技术奠定良好的基础。

中文关键词： 光纤通信；光分组交换网络；半导体激光器；波长可调谐；模式自锁定

英文摘要： Rapidly wavelength tunable lasers become a hot research field of optical communication because of its great application prospect in optical packet switching networks. Electro-optic tuning of semiconductor wavelength tunable laser has a theoretical tuning rate up to several nanosecond. However, the existing schemes achieves the wavelength controlability through multiple control variables. The complexity of the control system greatly reduces the tuning speed of the tunable laser. Here a noval scheme of rapidly wavelength tunable laser based on self-injection locking of F-P laser is proposed according to the preliminary researches. Rapid tuning of the output wavelength can be achieved through single variable. Based on this basis, it is necessary to further establish the mathematical model of the noval rapidly wavelength tunable laser, analyze the physical process during the transient change in drive current, shorten wavelength switching time and improve the laser output quality by optimizing device design and operating parameters. Finally, a rapidly wavelength tunable laser with one single control volume, tuning rate <5ns, tuning range >30nm, side mode suppression ratio > 50dB, linewidth <1MHz. To further verify the performance of the rapidly wavelength tunable laser, a 40Gb/s rapidly wavelength tunable all-o

英文关键词： optical fiber communication；optical packet switching networks；semiconductor laser；wavelength tunable；self mode-locking

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