Optical Network Units based on Semiconductor Optical Amplifiers in Single-Wavelength Single-Fiber Access Networks

Conference: Breitbandversorgung in Deutschland - wie schaffen wir den Anschluss? - ITG-Fachtagung
10/12/2005 - 10/13/2005 at Berlin, Germany

Proceedings: Breitbandversorgung in Deutschland - wie schaffen wir den Anschluss?

Pages: 6Language: englishTyp: PDF

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Authors:
Arellano, Cristina; Bock, Carlos; Prat, Josep (Universitat Polit├Ęcnica de Catalunya, Jordi Girona 1-3, 08034, Barcelona, Spain)
Langer, Klaus-Dieter (Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, Berlin, Germany)

Abstract:
Semiconductor optical amplifiers enable a very simple set-up of Optical Network Unit configurations. Half-duplex or full-duplex transmission can be achieved depending on the selected modulation format and the multiplexing scheme. The straightforward technique is Amplitude Shift Keying (ASK) data modulation for both uplink and downlink transmission. Full-duplex can be performed by combining Frequency Shift Keying (FSK) for the downstream data with ASK for the upstream data or by subcarrier multiplexing downlink and uplink signals in the electrical domain (SCM). All these modulation formats have been tested to evaluate the transmission capabilities for simple passive WDM access networks. The results promise excellent performance measures.