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Shoichiro KUWAHARA Kazushige YONENAGA Yutaka MIYAMOTO Yoshiaki KISAKA Kenji SATO Akira HIRANO Takashi ONO Akihiko MATSUURA Masahito TOMIZAWA Tomoyoshi KATAOKA Yasuhiko TADA Hiromu TOBA Kazuo HAGIMOTO Nobuhiro HIRAYAMA Hirotaka ASAI
The first results of a field trial held in November 2000, of 1 Tbit/s (25 43 Gbit/s) unidirectional Wavelength Division Multiplexing (WDM) transmission, are presented. The field trial used a 43 Gbit/s/channel Optical Transport Network (OTN) interface prototype and standard Single Mode Fibers (SMFs) installed in the Nara area network of NTT West Corporation. The features of this field trial include the accommodation of multiple services such as GbE, STM-16 and OC-48. Error free operation of 25 channels with 100 GHz spacing over a 91 km standard SMF with Forward Error Correction (FEC) is verified for STM-16. A DV stream over IP over Ethernet as a tributary channel was also successfully transmitted.
Takashi ONO Masahito TOMIZAWA Tomoyoshi KATAOKA Akihiko MATSUURA Yoshiaki KISAKA Yutaka MIYAMOTO Kazushige YONENAGA Shoichiro KUWAHARA Yasuhiko TADA Hiromu TOBA
This paper describes the design concept and realized functions of the first Optical Transport Network (OTN) based 43 Gbit/s line terminal. The system requirements of new generation networks are provided, and the functions needed in this line terminal are obtained from the requirements. The line terminal deploys Time Division Multiplexing (TDM) to handle client signals, and provides transparent high quality multiple services such as SONET/SDH and Gigabit Ethernet. The configuration and features of the actually fabricated system are described.