Survivable and Reliable WDM-PON System With Self-Protected Mechanism Against Fiber Fault

Yeh, Chien‐Hung; Luo, Chien-Ming; Xie, Yue-Ru; Chow, Chi‐Wai; Chen, Yu‐Wen; Hsu, Tzu-An

doi:10.1109/access.2019.2952944

Cited by 13 publications

(4 citation statements)

References 16 publications

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“…The PON systems have presented by three topologies of ring, three and bus types actually for fiber deployment [7][8][9]. Hence, the network reliability and survivability are more important in such PON systems to avoid the fiber failure occurrence [10,11]. Several architectures have exhibited to demonstrate the protectable and restorable operation for WDM-PON connection [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A Survivable Optical Network for WDM Access Against Fiber Breakpoint

et al. 2022

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Section: Introductionmentioning

confidence: 99%

A Survivable Optical Network for WDM Access Against Fiber Breakpoint

et al. 2022

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“…This is even a critical issue in the access networks connecting mobile networks and data centers due to the drastically increasing traffic in the links. Moreover, the present WDM-PON architecture is expected to play an important role in the infrastructure of optical millimeter-wave (MMW) data access and 5G/B5G mobile fronthaul and backhaul links [10,11]. Table 1 shows the failure rates and repair times for some network components [12,13].…”

Section: Introductionmentioning

confidence: 99%

Protection Scheme for a Wavelength-Division-Multiplexed Passive Optical Network Based on Reconfigurable Optical Amplifiers

2021

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This paper demonstrates a wavelength-division-multiplexed passive optical network (WDM-PON) scheme based on novel reconfigurable optical amplifiers (ROAs). The measured switching characteristics of the ROA3 constructed with a 2 × 2 crossbar optical switch and a four-port reversible optical circulator (OC) and a conventional EDFA can meet the requirements of most network management and surveillance. The self-made four-port reversible OC’s response time is less than 2 ms, and its insertion losses are about 1 dB or less for all the transmission paths and switching states. An optimal design of ROAs is proposed and evaluated for bidirectional optical amplifier protection, in which ROA3 has an EDF length of 7.5 m long with a 1480 nm pump laser and possesses a backward or forward pumping configuration with the corresponding pump power of 200 mW or 50 mW. We verified the scheme’s feasibility through a simulation of WDM-PON systems with 40 downstream and upstream channels. This scheme enables the intelligent protection switching in practical operation scenarios for high-capacity multi-wavelength networks.

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“…To comply with the ultra-broadband demands of end-user in the last mile communication network, utilizations of the 5G/B5G wireless network, visible light communication (VLC), free space optical (FSO) communication and passive optical network (PON) have been studied in recent years [1][2][3][4][5]. Furthermore, the FSO transmission technology could also be applied in the PON network to overcome some geographical environment limitations for providing the data connection [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Free Space Optical Communication in Long-Reach Unidirectional Ring-Architecture Fiber Network

et al. 2020

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In the work, a ring-constructed wavelength-division-multiplexing (WDM) access system for delivering multiple free space optical (FSO) wireless signals is investigated. To reach the FSO transmission through single-mode fiber (SMF) connection, the optical wireless unit (OWU) and remote OWU are designed in the WDM network. The downstream and upstream WDM FSO channels could be transmitted in unidirectional propagation with the same wavelength. Hence, the presented ring-based WDM network not only can transmit the FSO signal, but also can circumvent the Rayleigh backscattering (RB) interferometric beat noise. In addition, according to the experimental results, the SMF and FSO transmission lengths can reach 50 km and 500 to 1000 m at the forward error correction (FEC) level without using optical amplification and dispersion compensation, respectively, when four WDM wavelengths are exploited experimentally for demonstration. INDEX TERMS Free space optical (FSO); Rayleigh backscattering (RB), WDM Access, OOK modulation, Ring-architecture.

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Survivable and Reliable WDM-PON System With Self-Protected Mechanism Against Fiber Fault

Cited by 13 publications

References 16 publications

A Survivable Optical Network for WDM Access Against Fiber Breakpoint

A Survivable Optical Network for WDM Access Against Fiber Breakpoint

Protection Scheme for a Wavelength-Division-Multiplexed Passive Optical Network Based on Reconfigurable Optical Amplifiers

Free Space Optical Communication in Long-Reach Unidirectional Ring-Architecture Fiber Network

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