Mr. Hara made presentations at Technical Committee on Network System (NS).

The titles and authours are as follows.

Authors: Yutaro HARA, Yuji SHIMADA, Takehiro SATO, Kunitaka ASHIZAWA, Kazumasa TOKUHASHI, Daisuke ISHII, Satoru OKAMOTO, and Naoaki YAMANAKA
Title： A Study of Next Generation Metro-Access Hybrid Scalable Network by
Using PLZT Ultra High Speed Optical Wavelength Selective Switch
Abstract：We study a novel optical access network with active optical switches, called ActiON (Active Optical Network), as a next generation access network to replace PON (Passive Optical Network). In this paper, we focus on a scalability of ActiON so that it accommodates 600000 users to propose next generation metro-access hybrid scalable network by using PLZT optical wavelength selective switch. In the evaluation, we discuss about energy consumption and blocking ratio. We show that proposed network reduces 65 % of energy consumption compare to
the present network. Furthermore, blocking ratio of proposed network is always lower than a quality assurance of the Internet service.