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Colorless ONU with discolored source and hybrid SOI integrated wavelength converter

: Lazarou, I.; Stamatiadis, C.; Schrenk, B.; Stampoulidis, L.; Zimmermann, L.; Voigt, K.; Preve, G.B.; Moerl, L.; Kreissl, J.; Avramopoulos, H.


IEEE Photonics Technology Letters 24 (2012), Nr.5, S.386-388
ISSN: 1041-1135
Fraunhofer HHI ()

We present a novel optical network unit (ONU) featuring a "colorless" directly modulated laser (DML) enabled by a hybridly integrated all-optical wavelength converter (AOWC), supporting operation beyond 10 Gb/s. It incorporates a semiconductor optical amplifier (SOA) for wavelength conversion and two cascaded delay interferometers (DIs) for spectral processing. The ONU was proven at full duplex 10-Gb/s data rate in a WDM passive optical network.