title: Simple intradyne PSK system for udWDM-PON.
abstract: A homodyne coherent receiver for ultra-dense WDM-PON with off the shelf components is presented. It consists of a conventional DFB, phase switched clock signal, an optical coupler instead of a 90° hybrid, balanced photodetectors and digital signal processing. The phase swing for a DBPSK signal was optimized and the performance was experimentally evaluated in terms of the sensitivity for several laser linewidths. The acceptable frequency offset and clock time delay was also assessed. The results exhibit a sensitivity of -48 dBm at a BER of 10(-3) and indicate a high tolerance to phase noise.
authors.affiliation: Department of Signal Theory and Communications, Universitat Politècnica de Catalunya; Jordi Girona D4; 08034 Barcelona, Spain. jprat@tsc.upc.edu
authors.forename: Josep
authors.initials: J
authors.lastname: Prat
authors.forename: Victor
authors.initials: V
authors.lastname: Polo
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Zakynthinos
authors.forename: Ivan
authors.initials: I
authors.lastname: Cano
authors.forename: Jeison
authors.initials: J
authors.lastname: Tabares
authors.forename: Josep M
authors.initials: JM
authors.lastname: Fàbrega
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Klonidis
authors.forename: Ioannis
authors.initials: I
authors.lastname: Tomkos
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D055096:Optical Devices; D010783:Photometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*