TY - GEN
T1 - Investigation of moderate-To-strong turbulence effects on free space optics-A laboratory demonstration
AU - Nor, Norhanis Aida Mohd
AU - Fabiyi, Elizabeth
AU - Abadi, Mojtaba Mansour
AU - Tang, Xuan
AU - Ghabemlooy, Zabih
AU - Burton, Andrew
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/31
Y1 - 2015/8/31
N2 - The increasing demand for higher bandwidth is the motivation behind research studies in free space optical (FSO) communications. In particular, the impact of the atmospheric channel on the FSO link performance has been investigated for decades. Among known channel effects, turbulence is the one, which is thoroughly studied from theoretical and experimental point of views. However, due to limitation of laboratory equipment and channel length, only experimental works in the weak turbulence regime are reported. Therefore, in this paper a dedicated indoor controlled laboratory chamber is used to simulate the outdoor FSO communications for moderate-To-strong turbulence regimes. Instead of increasing the link distance, we generate high temperature gradients along the propagation path of 7 m by blowing cold air in a parallel direction to the laser beam. The performances of the on off keying intensity modulated FSO link is abebed by means of the Q-factor and the optical intensity distribution plots of received signals, thus giving an insight into the level of scintillation achieved in moderate to strong turbulence regimes.
AB - The increasing demand for higher bandwidth is the motivation behind research studies in free space optical (FSO) communications. In particular, the impact of the atmospheric channel on the FSO link performance has been investigated for decades. Among known channel effects, turbulence is the one, which is thoroughly studied from theoretical and experimental point of views. However, due to limitation of laboratory equipment and channel length, only experimental works in the weak turbulence regime are reported. Therefore, in this paper a dedicated indoor controlled laboratory chamber is used to simulate the outdoor FSO communications for moderate-To-strong turbulence regimes. Instead of increasing the link distance, we generate high temperature gradients along the propagation path of 7 m by blowing cold air in a parallel direction to the laser beam. The performances of the on off keying intensity modulated FSO link is abebed by means of the Q-factor and the optical intensity distribution plots of received signals, thus giving an insight into the level of scintillation achieved in moderate to strong turbulence regimes.
KW - Q-factor
KW - eye diagram
KW - free space optics (FSO)
KW - moderate turbulence
UR - https://www.scopus.com/pages/publications/84960449283
U2 - 10.1109/ConTEL.2015.7231197
DO - 10.1109/ConTEL.2015.7231197
M3 - 会议稿件
AN - SCOPUS:84960449283
T3 - Proceedings of the 13th International Conference on Telecommunications, ConTEL 2015
BT - Proceedings of the 13th International Conference on Telecommunications, ConTEL 2015
A2 - Plank, Thomas
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th International Conference on Telecommunications, ConTEL 2015
Y2 - 13 July 2015 through 15 July 2015
ER -