DocumentCode
670856
Title
How to use a low-cost DFB local oscillator in ultra-long-haul uncompensated coherent systems
Author
Secondini, Marco ; Meloni, Gianluca ; Berrettini, G. ; Poti, Luca
Author_Institution
Scuola Superiore Sant´Anna, Pisa, Italy
fYear
2012
fDate
16-20 Sept. 2012
Firstpage
1
Lastpage
3
Abstract
The effectiveness of digital coherence enhancement (DCE) for ultra-long-haul uncompensated coherent transmission is experimentally demonstrated. The maximum reach of a 100 Gb/s DP-QPSK system with a low-cost DFB local oscillator is increased from 1600 to 4400 km by DCE, equaling the maximum reach of a narrow-linewidth ECL local oscillator.
Keywords
feedback oscillators; light coherence; optical communication equipment; optical fibre communication; optical fibre dispersion; optical modulation; quadrature phase shift keying; spectral line narrowing; DCE; DP-QPSK system; bit rate 100 Gbit/s; digital coherence enhancement; distance 1600 km to 4400 km; low-cost DFB local oscillator; narrow-linewidth ECL local oscillator; ultra-long-haul uncompensated coherent systems; Optical coupling; Optical feedback; Optical noise; Optical polarization; Optical pulses; Receivers; Signal to noise ratio;
fLanguage
English
Publisher
ieee
Conference_Titel
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location
Amsterdam
Type
conf
Filename
6706110
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