TY - JOUR A2 - Righini, Giancarlo C. AU - Parkash, Sooraj AU - Sharma, Anurag AU - Singh, Harsukhpreet AU - Singh, Harjit Pal PY - 2016 DA - 2016/02/10 TI - Performance Investigation of 40 GB/s DWDM over Free Space Optical Communication System Using RZ Modulation Format SP - 4217302 VL - 2016 AB - We successfully demonstrate 40 GB/s 8 channels’ Dense Wavelength Division Multiplexing (DWDM) over free space optical (FSO) communication system. Each channel is transmitting 5 GB/s data rate in downstream separated by 0.8 nm (100 GHz) channel spacing with 1.8 GHz filter bandwidth. DWDM over FSO communication system is very effective in providing high data rate transmission with very low bit error rate (BER). The maximum reach of designed system is 4000 m without any compensation scheme. The simulation work reports minimum BER for Return-to-Zero (RZ) modulation format at different channels 1, 4, and 8 are found to be 2.32e-17, 1.70e-16, and 9.51e-15 at 4000 m distance, respectively. Sharp increase in BER occurs if data rate and distance increase up to 10 GB/s and 5000 m. SN - 1687-6393 UR - https://doi.org/10.1155/2016/4217302 DO - 10.1155/2016/4217302 JF - Advances in Optical Technologies PB - Hindawi Publishing Corporation KW - ER -