1.28 Terabit/s (32×40 Gbit/s) WDM transmission over a double-pass free space optical link

Ciaramella, E.; Arimoto, Yoshinori; Contestabile, Giampiero; Presi, M.; D’Errico, A.; Guarino, V.; Matsumoto, Mitsuji

doi:10.1364/ofc.2009.omn7

Cited by 25 publications

(19 citation statements)

References 2 publications

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“…WDM has been employed in FSO transmission systems and has been shown to be capable of supporting very high data rate transmission in [26]. RoFSO technology makes it possible to transmit multiple RF signals using WDM.…”

Section: Related Workmentioning

confidence: 99%

Optical power allocation for adaptive transmissions in wavelength-division multiplexing free space optical networks

Zhou

Mao

Agrawal

2015

Digital Communications and Networks

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Attracting increasing attention in recent years, the Free Space Optics (FSO) technology has been recognized as a costeffective wireless access technology for multi-Gigabit rate wireless networks. Radio on Free Space Optics (RoFSO) provides a new approach to support various bandwidth-intensive wireless services in an optical wireless link. In an RoFSO system using wavelength-division multiplexing (WDM), it is possible to concurrently transmit multiple data streams consisting of various wireless services at very high rate. In this paper, we investigate the problem of optical power allocation under power budget and eye safety constraints for adaptive WDM transmission in RoFSO networks. We develop power allocation schemes for adaptive WDM transmissions to combat the effect of weather turbulence on RoFSO links. Simulation results show that WDM RoFSO can support high data rates even over long distance or under bad weather conditions with an adequate system design.

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Section: Related Workmentioning

confidence: 99%

Optical power allocation for adaptive transmissions in wavelength-division multiplexing free space optical networks

Zhou

Mao

Agrawal

2015

Digital Communications and Networks

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“…Parameter Propagation delay allows for calculation of the delay between transmitter and receiver. If parameter Intensity scintillation is enabled, a GammaGamma distribution [4][5] [6] is used to model atmospheric fading. In this case the probability of a given intensity is:…”

Section: System Configurationmentioning

confidence: 99%

Performance Evaluation of 32×40 Gbps (1. 28 Tbps) FSO Link using RZ and NRZ Line Codes

Singh¹,

Gilawat²,

Shah³

2014

IJCA

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In this paper, the implementation of 32×40 Gbps free space optical (FSO) communication system is developed. Analysis is performed for return to zero (RZ) and non return to zero (NRZ) line codes for 1 km free space optic length. Motivation to the current analysis is to compare RZ and NRZ lines codes in wavelength division multiplex communication system in free space optic channel and it is found that the NRZ line code is better than RZ code. A 1.28 Tbps wavelength division multiplexed communication system for free space optic channel workplace has been discovered in which 32 channel each of 40 Gbps data streams are combined using wavelength division multiplexed. The study includes the attenuation caused by atmospheric effect and beam divergence. Bit error rate (BER), quality factor (Q) and eye diagram are indicator of performance evaluation. By comparing one can get a promising system to the high capacity access network with more bandwidth, cost effective and good flexibility.

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“…Instead of transmitting the pulses of light through glass fiber, these light pulses are transmitted in a narrow beam through atmosphere [2]. FSO links are of low cost, simple, and easy to install [3].…”

Section: Introductionmentioning

confidence: 99%

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

Parkash

Sharma

Singh

2016

Advances in Optical Technologies

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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 2.32 −17 , 1.70 −16 , and 9.51 −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.

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1.28 Terabit/s (32×40 Gbit/s) WDM transmission over a double-pass free space optical link

Cited by 25 publications

References 2 publications

Optical power allocation for adaptive transmissions in wavelength-division multiplexing free space optical networks

Optical power allocation for adaptive transmissions in wavelength-division multiplexing free space optical networks

Performance Evaluation of 32×40 Gbps (1. 28 Tbps) FSO Link using RZ and NRZ Line Codes

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

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