Title :
Experimental demonstration of polarisation shift keying in the free space optical turbulence channel
Author :
Tang, Xiaoou ; Ghassemlooy, Zabih ; Rajbhandari, Sujan ; Popoola, W.O. ; Uysal, Mustafa ; Wu, Dalei
Author_Institution :
Opt. Commun. Res. Group, Northumbria Univ., Newcastle upon Tyne, UK
Abstract :
In this paper, the performance of binary polarisation shift keying (BPOLSK) with the direct detection (DD) scheme is experimentally investigated. BPOLSK scheme is used to mitigate the atmospheric turbulence induced fading in a free space optical (FSO) communication link. For comparison the experimental and analytical results for the non-return-to-zero on-off keying (NRZ-OOK) have also been presented. The experimental Q-factors are verified in conjunction with theoretical values in weak turbulence regime to confirm the validity of the proposed scheme. The results have shown that BPOLSK offers higher Q-factor values compared to NRZ-OOK for the same transmitted optical power and the turbulence variance. For example, when the turbulence variance σ2l is 0.03, the Q-factors are 4.6 and 5 for NRZ-OOK and BPOLSK respectively.
Keywords :
Q-factor; amplitude shift keying; optical communication; BPOLSK scheme; DD scheme; FSO; NRZ-OOK; Q-factors; atmospheric turbulence mitigation; binary polarisation shift keying; direct detection scheme; free space optical communication link; free space optical turbulence channel; nonreturn-to-zero on-off keying; optical power transmission; Laser beams; Mirrors; Optical polarization; Optical receivers; Optical transmitters; Q factor; atmospheric turbulence; direct detection; free space optical wireless communication; polarisation shift keying;
Conference_Titel :
Communications in China Workshops (ICCC), 2012 1st IEEE International Conference on
Conference_Location :
Bejing
Print_ISBN :
978-1-4673-2996-5
Electronic_ISBN :
978-1-4673-2995-8
DOI :
10.1109/ICCCW.2012.6316470
