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Novel 1470-nm-Band WDM Transmission and Its Application to Ultra-Wide-Band WDM Transmission

Jun-ichi KANI, Tadashi SAKAMOTO, Masahiko JINNO, Kuninori HATTORI, Makoto YAMADA, Terutoshi KANAMORI, Kimio OGUCHI

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Summary :

A novel 1470-nm-band (S+ band) wavelength-division multiplexing (WDM) transmission system is described. The first advantage of S+-band transmission is suppression of degradation caused by four-wave mixing (FWM), which has been the dominant impairment factor in WDM transmission systems on dispersion-shifted fibers (DSFs). FWM suppression by using the S+ band instead of the conventional 1550-nm-band (M band) is successfully demonstrated. The second advantage is expansion of the usable bandwidth by using the S+ band together with other wavelength bands. A triple-wavelength-band WDM repeaterless transmission experiment using the S+ band, the M band and the L band (1580-nm-band) is conducted over DSF, and it is shown that degradation due to inter-wavelength-band nonlinear interactions is negligible in the transmission. Moreover, the transmission performance of an S+-band linear repeating system is estimated by computer simulation, and compared with that of other wavelength-band systems. In the experiments, thulium-doped fiber amplifiers (TDFAs) are used for amplification of signals in the S+ band.

Publication
IEICE TRANSACTIONS on Electronics Vol.E82-C No.8 pp.1397-1406
Publication Date
1999/08/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section INVITED PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category
Optical Systems and Technologies

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