Open AccessInvestigation of Power Efficiency Changes in DWDM Systems Replacing Erbium-Doped Amplifiers By Semiconductor Optical Amplifiers
Author(s) -
Deniss Pavlovs,
Vjačeslavs Bobrovs,
Mareks Parfjonovs,
A. Alsevska,
G. Ivanovs
Publication year - 2022
Publication title -
latvian journal of physics and technical sciences/latvian journal of physics and technical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 9
eISSN - 2199-6156
pISSN - 0868-8257
DOI - 10.2478/lpts-2022-0005
Subject(s) - wavelength division multiplexing , optical amplifier , amplifier , wideband , phase shift keying , electronic engineering , keying , optics , bandwidth (computing) , physics , computer science , telecommunications , wavelength , engineering , channel (broadcasting) , bit error rate , laser
To evaluate potential utilization of semiconductor optical amplifiers (SOAs) as a wideband amplification alternative to erbium doped fibre amplifiers (EDFAs) in dense wavelength division multiplexed (DWDM) coherent systems, the authors discuss changes in power consumption levels required for a single bit transmission. The research evaluates the power efficiency parameter for WDM transmission systems using both amplification schemes – EDFAs that utilise standard C-band and SOAs assuming 75 nm amplification spectral band. The power efficiency levels have been estimated for five transmission spans with maximal distance of 640 km. The standard 50 GHz channel spacing has been chosen for both system configurations to allocate 100 Gbps dual-polarization quadrature phase shift keying (DP-QPSK) optical signals. The simulation schemes are described along with the critical parameters, derived from the recent relevant studies that should be taken into account considering usage of SOAs as in-line amplifiers.