Title :
Experimental Demonstration of Incoherent Optical Multilevel Staggered-APSK (Amplitude- and Phase-Shift Keying) Signaling
Author :
Kikuchi, Naoya ; Mandai, Kohei ; Sasaki, Seishi
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
Generation and incoherent detection of a 30-Gbit/s 8-level staggered APSK signal using two-state MLSE detection is successfully demonstrated with a 140-km fiber transmission. Its better constellation design results in 1.5-dB sensitivity improvement from 8-DPSK signaling.
Keywords :
amplitude shift keying; differential phase shift keying; maximum likelihood sequence estimation; optical fibre communication; optical fibre networks; optical receivers; optical signal detection; 8-DPSK signaling; APSK; amplitude-shift keying; bit rate 30 Gbit/s; constellation design; fiber transmission; incoherent detection; optical multilevel stagger; orthogonally-coupled differential receiver; phase-shift keying; two-state MLSE detection; Constellation diagram; High speed optical techniques; Maximum likelihood estimation; Optical modulation; Optical receivers; Optical sensors; Phase detection; Phase modulation; Phase shift keying; Signal generators;
Conference_Titel :
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-55752-856-8
DOI :
10.1109/OFC.2008.4528342
