Demonstration of high-data-rate wavelength division multiplexed transmission over a 150 km free space optical link

2007 ◽  
Author(s):  
David W. Young ◽  
Joseph E. Sluz ◽  
Juan C. Juarez ◽  
Marc B. Airola ◽  
Raymond M. Sova ◽  
...  
Keyword(s):  
Free Space ◽  
Data Rate ◽  
High Data Rate ◽  
Free Space Optical ◽  
Optical Link ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
High Data

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

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Sooraj Parkash ◽  
Anurag Sharma ◽  
Harsukhpreet Singh ◽  
Harjit Pal Singh
Keyword(s):  
Wavelength Division Multiplexing ◽  
Communication System ◽  
Free Space ◽  
Data Rate ◽  
Free Space Optical ◽  
Filter Bandwidth ◽  
Wavelength Division ◽  
High Data ◽  
Modulation Format ◽  
Space Optical Communication

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.

NOVEL MULTIWAVELENGTH MODE-LOCKED SEMICONDUCTOR LASERS: PHYSICS AND APPLICATIONS

2000 ◽  
Vol 10 (01) ◽  
pp. 309-317 ◽  
Author(s):  
P. J. DELFYETT ◽  
B. MATHASON ◽  
I. NITTA ◽  
H. SHI
Keyword(s):  
Semiconductor Lasers ◽  
System Performance ◽  
State Of The Art ◽  
Hybrid Approach ◽  
High Data Rate ◽  
Technology Platform ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
High Data ◽  
Communication Links

We develop and study the physics of a novel hybrid wavelength-division-multiplexed, optical timedivision-multiplexed (WDM-OTDM) mode-locked semiconductor laser for applications in ultra-high data rate communication links, computer interconnects, and optical sampling applications. The key philosophy behind using a hybrid approach is that state-of-the-art system performance can be achieved without the necessity of operating at the limits of a either a pure WDM or OTDM technology platform.

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