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Novel Optical-Regenerator Using Electroabsorption Modulators

Tetsuya MIYAZAKI, Tomohiro OTANI, Noboru EDAGAWA, Masatoshi SUZUKI, Shu YAMAMOTO

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Summary :

We have proposed and demonstrated a novel optical regenerator architecture employing electroabsorption modulators as wavelength converters. The employment of EA modulators is advantageous for high-speed operation and flexibility in the bit-rate for the pulse regeneration. In addition, the EA modulator-wavelength-converter acts also as a photo diode for clock extraction. Compensation of the optical SNR and Q-factor has been demonstrated, even in cascaded noise load. Furthermore, against dispersion loading, we have confirmed that waveform recovery and Q-factor improvement is obtained by midway insertion of the optical regenerator. The proposed architecture will offer a wide-band-electronics-free optical regenerator in multi-tens of gigabit per second WDM networks.

Publication
IEICE TRANSACTIONS on Communications Vol.E82-B No.8 pp.1148-1153
Publication Date
1999/08/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category
Optical Systems and Technologies

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