空间光通信信号光发射模块的研究与设计

【作者】 尹治国；

【导师】 李贤；

【作者基本信息】 电子科技大学 ， 光学， 2005， 硕士

【摘要】 空间光通信以其高带宽、高码率、高保密性及抗干扰等优点成为光通信发展的新方向,目前已成为各国研究工作的热点。信号光发射部分是光通信系统中不可或缺的,它直接担负着信号光的产生、调制和发射以及波长的稳定等一系列任务,在整个光通信系统中起重要作用。本论文是国家“863”专家组下达的空间光通信系统研究课题的子课题,配合系统总体设计要求,完成信号光发射模块的设计以及基于整个光通信系统的调试。本论文对光通信系统中信号光发射模块理论进行了分析,对信号光发射模块的关键技术进行了分解,并根据整个光通信系统的链路分配要求,设计出能达到相关技术指标要求的激光驱动电路和温控电路,对设计的电路进行仿真分析。根据仿真分析的结果,确定各主要关键元器件参数。组建信号光发射电路并调试,最终完成信号光发射模块的设计。设计的信号光发射模块达到规定的技术指标要求。该发射模块设计是在对新型光电器件研究的基础上进行的,对于大功率、高速率的信号光发射技术是一种新的尝试和研究,为以后更高功率、更高码率空间光通信系统的设计提供了一条切实可行的途径。更多还原

【Abstract】 Free space optical communication becomes a new direction of optical communications because of its advantages as broad bandwidth, high bit rate, high security and good performance on anti-jamming. The transmitting module of signal optical including such as optical generating, modulating, emitting and keeping optical wave stabilization, is very important in optical communication system. This paper provides the analysis of the theory in signal optical transmitting module. We analyze the key technology of signal transmitting. Being based of distributing communication system link, we design driving and temperature controlling circuit according with technology target for simulating. According to simulating, we select corresponding component to assemble the signal optical transmitting circuits. We test our designing circuits and accomplish the transmitting module. Our designing module is based on the analysis of new typical optical-electronic component. That is a new sample for high power, high bit rate signal optical transmitting. We provide feasible approach for high performance optical communication system.更多还原