Performance Investigation of 40 GB/s DWDM over Free Space Optical Communication System Using RZ Modulation Format

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 , , and at 4000 m distance, respectively. Sharp increase in BER occurs if data rate and distance increase up to 10 GB/s and 5000 m.

[1]  Vishal Sharma,et al.  Severe climate sway in coherent CDMA-OSSB-FSO transmission system , 2014 .

[2]  Harminder Kaur,et al.  Performance Investigation of CRZ Modulation Format in GEPON Fiber to the Home (FTTH) Network at 2.5G/bits for 200 ONU's , 2015, 2015 Second International Conference on Advances in Computing and Communication Engineering.

[3]  Mohamed-Slim Alouini,et al.  2.3 Gbit/s underwater wireless optical communications using directly modulated 520 nm laser diode. , 2015, Optics express.

[4]  Trilok Singh,et al.  2.50 Gbit/s optical CDMA over FSO communication system , 2014 .

[5]  Sushank Chaudhary,et al.  Effect of Beam Divergence on WDM-FSO Transmission System , 2014 .

[6]  Manoj Kumar,et al.  Performance Enhancement of WDM-PON FTTH Network by Using Decision Feedback and Feed forward Equalizations , 2015 .

[7]  Jianmin Wang,et al.  Free-space laser communication system with rapid acquisition based on astronomical telescopes. , 2015, Optics express.

[8]  Peng Li,et al.  A MPR optimization algorithm for FSO communication system with star topology , 2015 .

[9]  Vishal Sharma,et al.  High speed, long reach OFDM-FSO transmission link incorporating OSSB and OTSB schemes , 2013 .

[10]  E. Ciaramella,et al.  1.28 Terabit/s (32×40 Gbit/s) WDM transmission over a double-pass free space optical link , 2009, 2009 Conference on Optical Fiber Communication - incudes post deadline papers.

[11]  Junaidi Junaidi,et al.  Battery Control Strategy for Hybrid Power Generation Systems , 2012 .

[12]  Vishal Sharma,et al.  High speed CO-OFDM-FSO transmission system , 2014 .