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Demand Assign Wavelength Division Multiple Access (DA-WDMA) Hybrid Optical Local Area Network Using Optical Add-Drop Multiplexers
Takahiro SHIOZAWA Seigo TAKAHASHI Masahiro EDA Akifumi Paulo YAZAKI Masahiko FUJIWARA
Publication
IEICE TRANSACTIONS on Communications
Vol.E77-B
No.2
pp.184-189
Publication Date: 1994/02/25
Online ISSN:
DOI:
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Photonic Switching Technologies)
Category:
Keyword:
optical communication, communication networks and services, optical local area network, wavelength division multiplexing, optical add-drop multiplexer,
Full Text: PDF>>
Summary:
A new kind of optical local area network (LAN), using a demand assign wavelength division multiple access (DA-WDMA) scheme, has been proposed. The proposed LAN consists of two parts; an ordinary standardized LAN and an overlaid network using wavelength division (WD) channels. The proposed network can provide bit-rate independent communication channels on the ordinary LAN without limiting the capacities for the other channels. It also exhibits upgrade possibilities from present standardized networks. An access controller, which consists of software in addition to the ordinary LAN controller, a digital signal processor (DSP) etc., was developed for DA-WDMA control. The network node operation has been demonstrated using guided-wave acousto-optic (AO) mode converters as a tunable wavelength add-drop multiplexer (ADM).
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