Abstract
Access-metro convergence networks (AMCN) have been proposed as a future optical communication network to realize flexible and dynamic bandwidth allocation. An AMCN requires transceivers with different wavelengths for the optical network units (ONUs). This causes an increase in production costs. Although an all-optical wavelength converter (AOWC) mitigates this issue, the AOWC increases the installation cost because it consists of many expensive optical devices. We propose the use of a remotely pumped AOWC (RP-AOWC) with an AMCN. The proposed technique can reduce the number of pump light sources in the AOWC. This paper demonstrates this reduction in the number of light sources and the feasibility of wavelength conversion using pump light propagation. We calculate the reduction in the number of pump sources and the number of transceiver types caused by the use of RP-AOWC and experiment with the wavelength conversion using pump light propagation.
Highlights
Large capacity and low latency optical access networks are commonly in demand to accommodate different user services[1], [2]
This paper proposes utilizing an RP-all-optical wavelength converter (AOWC) with the Access-metro convergence networks (AMCN)
The proposed technique reduces the number of transceiver types in the optical network units (ONUs) and the number of pump light sources in the AOWC
Summary
Large capacity and low latency optical access networks are commonly in demand to accommodate different user services[1], [2]. The proposed technique enables each PON system to use the same wavelength This is because the relay nodes on the metro ring conduct the AOWC, whereby signals can avoid wavelength collisions on the metro ring network. Using an AOWC is useful in the WDM network because it can convert multiple wavelengths simultaneously using all-optical signal processing[5]. This paper reports an analysis of the reduction in the number of transceiver types and that of pump light sources when applying the proposed RP-AOWC to an AMCN.
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