Hybrid WDM FSO Fiber Access Network With Rayleigh Backscattering Noise Mitigation

In the paper, we present and investigate an integrated wavelength-division-multiplexing (WDM) free space optical (FSO) fiber access network for 51 km long-reach connection. Here, the proposed network architecture also can mitigate Rayleigh backscattering (RB) interferometric beat noise. We employ sy...

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Bibliographic Details
Published in:IEEE access 2020, Vol.8, p.96449-96454
Main Authors: Yeh, Chien-Hung, Chen, Jhao-Ren, You, Wei-Yao, Chow, Chi-Wai
Format: Article
Language:English
Subjects:
Backscattering
Computer architecture
Computer networks
Free space optical (FSO) communication
long-reach
On-Off Keying
Optical fibers
Optical network units
passive optical network (PON)
Passive optical networks
Rayleigh backscattering (RB) noise mitigation
Wavelength division multiplexing
wavelength division-multiplexing (WDM)
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Summary:In the paper, we present and investigate an integrated wavelength-division-multiplexing (WDM) free space optical (FSO) fiber access network for 51 km long-reach connection. Here, the proposed network architecture also can mitigate Rayleigh backscattering (RB) interferometric beat noise. We employ symmetric 4\times 10 Gbit/s on-off keying (OOK) WDM-FSO downstream and upstream wavelengths for demonstration. According to the simulated and experimental results, the free space transmission length of 400 to 940 m can be achieved based on various WDM-FSO downstream signals and their corresponding power budget, when the wavelengths are without optical amplification.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.2997820