Influence of Q-switch On signal pulse in wireless optical communication

HOU Jun-hui; GUO Jian-qiang; WANG Li; GAO Xiao-rong; WANG Ze-yong

doi:10.3969/j.issn.1001-3806.2011.02.021

In order to analyze the influence of Q-switch in a laser on the output signal pulse in wireless optical communication,on the basis of the rate equations,under different Q-switch function models,the power and waveform characteristics of the output signal were theoretically analyzed and simulated.Then the obtained data were compared with the raised cosine roll-off signal.The results indicate that the output pulse of a Q-switch laser has excellent power and waveform characteristics,which make it suitable for long distance wireless optical communication,restraining code intercross and reducing the bit error rate effectively.

Influence of Q-switch On signal pulse in wireless optical communication

Corresponding author: GUO Jian-qiang, jianqguo@163.com;

1. College of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China

Received Date: 2010-04-19

Accepted Date: 2010-05-27

Available Online: 2011-03-25

Abstract: In order to analyze the influence of Q-switch in a laser on the output signal pulse in wireless optical communication,on the basis of the rate equations,under different Q-switch function models,the power and waveform characteristics of the output signal were theoretically analyzed and simulated.Then the obtained data were compared with the raised cosine roll-off signal.The results indicate that the output pulse of a Q-switch laser has excellent power and waveform characteristics,which make it suitable for long distance wireless optical communication,restraining code intercross and reducing the bit error rate effectively.

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Reference (12)

[1]	HUANG Y B,WEI H L,MEI H P,et al.Effects of atmospheric channel on system performance of infrared laser communication system[J].Acta Photonica Sinica,2009,38(3):646-651 (in Chinese).
[2]	WU F T,YAO G Q,ZHANG J R,et al.Theoretical and experimental study on the enhancement of Q-switched laser output[J].Journal of Huaqiao University (Natural Science Edition),2005,26(1):43-46(in Chinese).
[3]	CHEN P F,LAN X J.Technology to reduce pulse-width of Qswitched pulse[J].Laser Infrared,1994,21 (1):36-37 (in Chinese).
[4]	LIU W J,LI H J,QU Sh L,et al.Fem to second pulse compressing in external cavity[J].Laser Technology,2007,31 (6):665-670 (in Chinese).
[5]	PANG Ch L,SU Y,ZHENG Zh R.The stability of ultra short pulse output in self mode-locked lasers[J],laser Technology,20O7,31(3):271-273(in Chinese).
[6]	DA X Y,CHEN Sh X.The course of communication principles[M].Beijing:Beijing University of Posts and Telecommunications Press,2005:117-124(in Chinese).
[7]	CHEN J B.Laser principle and application[M].Beijing:Electronics Industry Press,2004:49-165(in Chinese).
[8]	LAN X J.Laser technology[M].Beijing:Science Press,2000:68-77(in Chinese).
[9]	LI R X,HE Zh Q.The numerical resolution of differential equations[M].Shanghai:East China University of Science and Technology Press,2005:1-29(in Chinese).
[10]	LIU Q,LI Y C,ZHOU X,et al.The relation between the output pulse energy and width characteristics experiment[J].Laser Journal,2009,30(1):20-21 (in Chinese)
[11]	ZHANG Y L,WANG M G,ZHANG J Y,et al.Experiment and analysis of 10Gbit/s optical wireless communication systems[J].Optical Communication Technology,2007,31 (3):57-58 (in Chinese).
[12]	YANG Y J,SUN P Y.Intersymbol interference of frequency band transmission[J].Journal of Liaoning Technical University,2004,23(1):188-189(in Chinese).

Influence of Q-switch On signal pulse in wireless optical communication

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References

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通讯作者: 陈斌, bchen63@163.com

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