Direct phase modulation DFBs for cost-effective ONU transmitter in udWDM PONs

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Title:	Direct phase modulation DFBs for cost-effective ONU transmitter in udWDM PONs
Author:	Cano Valadéz, Iván Nicolás; Lerín de la Santísima Trinidad, Adolfo; Polo Querol, Víctor; Prat Gomà, Josep Joan
Other authors:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. Departament d'Estructures a l'Arquitectura; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
Abstract:	A technique for direct phase modulating a low-cost distributed feedback laser is presented for user transmitter in ultra dense wavelength division multiplexing passive optical networks. It consists of a simple RC network, which equalizes the phase response. The method is tested with differential phase-shift keying modulation and heterodyne coherent detection at 1.25 and 2.5 Gb/s showing a penalty <1 dB at BER = 10(-3) compared with external phase modulation.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica -Passive optical networks -Laser communication systems -Ultra dense wavelength division multiplexing -udWDM -passive optical networks -PONs -differential phase shift keying -direct modulated lasers -heterodyne detection -Lasers -Comunicacions òptiques -Fibres òptiques -Sistemes de comunicació per làser
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Document type:	Article - Published version Article
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