高功率半导体激光通信系统的调制技术研究
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摘要
通信技术的快速发展,导致对高功率半导体激光通信系统的调制技术要求也越来越高,高功率半导体激光调制源是通信系统中最主要的部分。针对当前社会在激光通信系统中面临调制响应时间过长、成本消耗较高、完成时间较慢等问题。提出一种基于高功率半导体激光通信系统直接调制方法。通过对高功率半导体激光器结构和应用进行分析,为了降低通信系统成本消耗及复杂度,采用直接调制的方法进行调制,根据通信系统信号调制规律去改变通信系统震荡参数,从而实现系统调制。实验结果表明,本文方法调制响应时间较短、成本消耗较低、完成时间较快。
The rapid development of communication technology has led to higher and higher modulation technology requirements for high-power semiconductor laser communication systems. The high-power semiconductor laser modulation source is the most important part of the communication system. In view of the current society,the laser communication system faces problems such as excessive modulation response time,high cost,and slow completion time. A direct modulation method based on high power semiconductor laser communication system is proposed. By analyzing the structure and application of high-power semiconductor lasers,in order to reduce the cost and complexity of the communication system,direct modulation is used to modulate,and the system oscillation parameters are changed according to the law of signal modulation of the communication system,thereby realizing system modulation. The experimental results show that the proposed method has shorter modulation response time,lower cost and faster completion time.
The rapid development of communication technology has led to higher and higher modulation technology requirements for high-power semiconductor laser communication systems. The high-power semiconductor laser modulation source is the most important part of the communication system. In view of the current society,the laser communication system faces problems such as excessive modulation response time,high cost,and slow completion time. A direct modulation method based on high power semiconductor laser communication system is proposed. By analyzing the structure and application of high-power semiconductor lasers,in order to reduce the cost and complexity of the communication system,direct modulation is used to modulate,and the system oscillation parameters are changed according to the law of signal modulation of the communication system,thereby realizing system modulation. The experimental results show that the proposed method has shorter modulation response time,lower cost and faster completion time.
引文
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[2]毕明喆,苏煜炜,马万卓,等.基于光纤激光相控阵的空间激光通信系统[J].应用光学,2016,37(6):938-941.
[3]王磊,郝士琦,张岱,等.离散速率条件下的大气激光通信自适应调制编码系统性能[J].光学学报,2017,37(7):50-57.
[4]马爽,吴志勇,高世杰,等.改进的大气激光通信PPM调制解调系统设计[J].哈尔滨工业大学学报,2016,48(5):105-109.
[5]钟坤,何宁,蒋红艳.可变基频激光通信数据传输系统研究与实现[J].激光与红外,2016,46(10):1220-1224.
[6]王卫鹏,徐英添,邹永刚,等.基于PSpice的半导体激光高频调制系统设计[J].强激光与粒子束,2017,29(12):5-11.
[7]贺秀玲,苏渤力.无线扩频通信系统的调制信号无损传输优化技术[J].微电子学与计算机,2016,33(12):147-151.
[8]张军,蔡文郁,温端强.水下高速激光通信系统及组网技术研究[J].电子技术应用,2017,43(9):53-56.
[9]王怡,王运敏,马晶.到达角起伏对上行星地激光通信系统性能的影响[J].红外与激光工程,2018,001(1):233-241.
[10]王磊,郝士琦,赵青松,等.基于AMC和HARQ的大气激光通信跨层系统性能研究[J].激光与红外,2017(11):1405-1410.
[11]苏煜炜,毕明喆,刘鹏,等.基于密集波分复用的20Gbit/s大气激光通信[J].应用光学,2017,38(1):136-139.
[12]闫夏超,朱江,张蜡宝,等.基于超导纳米线单光子探测器深空激光通信模型及误码率研究[J].物理学报,2017,66(19):282-288.
[13]和亮.基于级联马赫-曾德尔调制器的太赫兹通信系统[J].激光技术,2016,40(6):787-790.
[14]曹雪,李新营,蒋俊华,等.基于光纤环形镜的光纤激光器的优化设计[J].光通信技术,2009,33(7):15-17.
[15]周雪芳,袁珊,缪雪峰.多波长布里渊掺铒光纤激光器的结构优化研究[J].半导体光电,2013,34(4):583-587.
[16]吴秋宇,林长星,陆彬,等.21 km,5 Gbps,0.14 THz无线通信系统设计与试验[J].强激光与粒子束,2017,29(6):1-4.