摘要
为了提高空间光通信系统的抗辐射性能,研究了半导体激光器的辐射损伤效应对空间光通信系统误码率的影响。在此基础上,进一步推导了半导体激光器辐射损伤对空间光通信系统误码率的影响模型。通过仿真研究,其结果表明:辐射对半导体激光器的输出光功率线性下降。误码率在1000Gy之前可以忽略影响,辐射至3000Gy之后对误码率的影响迅速上升。适当调整误码率是提高系统抗辐射特性的有效措施,该理论结果为空间光通讯应用提供参考。
In order to improve the anti-radiations performance of space optical communication system,the effects of laser diodes radiation damage on bit error rate of space optical communication system was discussed.On the basis,the impact models of laser diodes cumulative radiation damage on the bit error rate of space optical communication system were further deduced.Simulation was compeleted.The result shows that radiation induces linear decrease of laser diodes output power.Bit error rate can be neglected when radiation dose is lower than 1 000 Gy.The influence of radiation on bit error rate increases rapidly when radiation dose is larger than 3 000 Gy.Adjusting bit error rate appropriately is an effective measures to improve anti-radiation performance.The theoretical results provide reference for the space optical communications applications.
出处
《红外与激光工程》
EI
CSCD
北大核心
2011年第3期497-500,共4页
Infrared and Laser Engineering
基金
"十一五"国家科技支撑计划重点项目资助(2009BAK58B03)
关键词
误码率
空间光通信
半导体激光器
输出光功率
辐射损伤
bit error rate
space optical communication
laser diodes
output optical power
radiation damage
