Title :
Transmission and optical label swapping for 4×40 gb/s WDM signals deploying orthogonal ASK/DPSK labeling
Author :
Chi, Nan ; Xu, Lin ; Zhang, Jianfeng ; Holm-Nielsen, Pablo V. ; Peucheret, Christophe ; Geng, Yan ; Jeppesen, Palle
Author_Institution :
Opt. Commun. Res. Group, Univ. of Bristol, UK
fDate :
6/1/2005 12:00:00 AM
Abstract :
In this letter, we report a novel amplitude shift keying/differential phase-shift keying (ASK/DPSK) optical packet encoding method that can significantly reduce the crosstalk between the ASK payload and the DPSK label through spectrum shaping. We demonstrate wavelength-division-multiplexing (WDM) transmission for 4×40 Gb/s labeled return-to-zero signals, including label swapping by Kerr switching of one of the channels, with an overall penalty of 3.3 dB for the payload and 0.3 dB for the label, clearly validating this orthogonal modulation scheme as a potential solution for future ultrahigh-speed Internet protocol-over-WDM networks.
Keywords :
amplitude shift keying; differential phase shift keying; encoding; optical Kerr effect; optical crosstalk; optical fibre communication; optical switches; telecommunication channels; wavelength division multiplexing; 0.3 dB; 160 Gbit/s; 3.3 dB; 40 Gbit/s; Kerr switching; amplitude shift keying/differential phase-shift keying optical packet encoding method; crosstalk; optical label swapping; orthogonal ASK-DPSK labeling; orthogonal modulation scheme; return-to-zero signals; spectrum shaping; ultrahigh-speed Internet protocol-over-WDM networks; wavelength division multiplexing; Amplitude shift keying; Differential quadrature phase shift keying; Erbium; Labeling; Multiprotocol label switching; Optical crosstalk; Optical modulation; Optical wavelength conversion; Payloads; Wavelength division multiplexing; Amplitude shift keying (ASK); differential phase-shift keying (DPSK); optical label swapping;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.846615
