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In‐line one‐pump parametric amplifier with independent polarization gain: A field‐trial demonstration
Author(s) -
Marconi Jorge D.,
Fugihara Meire C.,
Callegari Fulvio A.,
Fragnito Hugo L.
Publication year - 2013
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27481
Subject(s) - optical amplifier , amplifier , parametric oscillator , optical parametric amplifier , optics , parametric statistics , physics , materials science , optoelectronics , mathematics , cmos , laser , statistics
Abstract We present a one‐pump parametric amplifier with polarization independent gain working as an in‐line amplifier within an experimental field‐trial optical network. The polarization independent gain is obtained by using a polarization diversity technique (PDT). Five signals modulated at 10 Gb/s were transmitted through the network, and a gain variation as low as 0.05 dB, independent of the signal polarization, was obtained. The bit‐error‐rate (BER) for the amplified signals was measured. For a BER of 10 −9 , a power penalty as low as 0.7 dB is shown. These measurements were compared with the identical ones obtained when the parametric amplifier with the PDT was replaced by an Erbium‐doped fiber amplifier (EDFA). The fiber optical parametric amplifier (FOPA) with the PDT presents a power penalty of 0.7 dB in relation to the value obtained with the EDFA. These results show that parametric amplifiers that use the PDT are able to reach a performance comparable to those obtained with the current technology of optical amplifiers based on rare earth doped fibers. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1104–1107, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27481