Title :
Bit Error Rate Analysis of Free Space Optical Link Using Different Optical Windows
Author :
Singh, Maneesh Kumar ; Kapoor, Vinod ; Sharma, Neeraj ; Goswami, Ashish
Author_Institution :
Dept. of ECE, NIT Hamirpur, Hamirpur, India
Abstract :
In this paper, we propose a model of free space optical communication system. The results of this paper show the BER of the system at different distances under high speed data rate of 1.25 Gbps. The different wavelength (window) used to calculate the performances at clean air turbulences of 6.5dB/Km. For focused laser beams propagating along the horizontal path we are using VCSEL. The avalanche photodiode (APD) is chosen for optical power detection, and the APD model is adopted for system evaluation. The NRZ-on-off keying (OOK) method is used for laser beam modulation.The average Bit-Error-Rate (BER) Vs distances and Q2 Vs Distances curves of the FSO communication system are obtained.
Keywords :
amplitude shift keying; error statistics; optical links; photodiodes; BER; FSO communication system; NRZ-on- off keying method; OOK method; VCSEL; avalanche photodiode; bit error rate analysis; clean air turbulences; free space optical communication system; free space optical link; laser beam modulation; optical power detection; optical windows; Adaptive optics; Atmospheric modeling; Bit error rate; Laser beams; Optical fiber communication; Optical receivers; Vertical cavity surface emitting lasers;
Conference_Titel :
Devices and Communications (ICDeCom), 2011 International Conference on
Conference_Location :
Mesra
Print_ISBN :
978-1-4244-9189-6
DOI :
10.1109/ICDECOM.2011.5738529
