This study reviews key technologies of next generation wavelength division multiplexing
passive optical networks (WDM‐PONs). The authors have studied WDM‐PONs with …

In recent years, the diffusion of mobile terminals has brought about an explosive increase in
communication traffic of mobile RANs. The number of radio base stations and optical fiber …

The aim of this article is to point out the possibility of solving problems related to a concept of
a flexible hybrid optical access network. The entire topology design was realized using the …

This paper presents novel burst-mode automatic gain controlled semiconductor optical
amplifiers (AGC-SOAs) that are utilized as one upstream channel of a repeater in long-reach …

Possible configurations of tunable components for the next-generation passive optical
network stage 2 (NG-PON2) are reviewed on the basis of system requirements. Expected …

We demonstrate the first dynamic load-balancing operation on a symmetric 40-Gbit/s λ-
tunable WDM/TDM-PON. Smooth traffic migration without data-frame loss is performed by …

We propose hitless wavelength-tuning sequence for dynamic wavelength allocation in
WDM/TDM-PONs and demonstrate highly frequent wavelength-tunings in 100-ms intervals …

Elastic lambda aggregation network (EλAN)-Proposal for future optical access network
Page 1 Abstract This paper proposes a future optical-access-network concept called the elastic …

This paper reports the world-first system-level demonstration of dynamic wavelength
allocation (DWA) on a wavelength-tunable (λ-tunable) wavelength division multiplexing/time …

Possible device configurations for the next-generation passive optical network (NG-PON2)
are reviewed on the basis of system requirements. The most significant issue is how to cost …