Wideband Unrepeatered Transmission Using Doped Tellurite-Fiber Amplifiers

This work evaluates the use of wideband erbium-doped tellurite-fiber amplifiers (EDTFAs) for unrepeatered links. We demonstrate the transmission of a 40.5 Tb/s signal composed of 290 polarization-multiplexed 16-ary quadrature amplitude modulated channels spread across a continuous 60 nm band over a...

Full description

Saved in:
Bibliographic Details
Published in:Journal of lightwave technology 2024-07, Vol.42 (13), p.4410-4416
Main Authors: Luis, Ruben S., Puttnam, Benjamin J., Rademacher, Georg, Hout, Menno van den, Sciullo, Giammarco Di, Orsuti, Daniele, Okonkwo, Chigo, Antonelli, Cristian, Sakaguchi, Jun, Furukawa, Hideaki
Format: Article
Language:English
Subjects:
Amplifiers
Broadband
distributed Raman amplification
EDFA
Erbium
erbium-doped fiber amplifier
Gain
Optical attenuators
Optical polarization
Optical transmitters
Quadratures
Raman amplifier
Signal generation
Signal to noise ratio
Tellurium dioxide
Throughput
Unrepeatered transmission
Wideband
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This work evaluates the use of wideband erbium-doped tellurite-fiber amplifiers (EDTFAs) for unrepeatered links. We demonstrate the transmission of a 40.5 Tb/s signal composed of 290 polarization-multiplexed 16-ary quadrature amplitude modulated channels spread across a continuous 60 nm band over a distance of 312 km. The transmission band is centered at the lowest loss wavelength of the link, 1575.7 nm, partially spanning the C and L bands. The unrepeatered system uses exclusively EDTFAs for wideband signal generation, transmission and receiver preamplification. Furthermore wideband distributed bidirectional Raman amplification is used to partially compensate the link losses. We evaluate the dependence of the optical signal-to-noise ratio, Q-factor and throughput on the launch power. The highest throughput is achieved at the maximum launch power of 18 dBm and, to date, is the highest throughput for unrepeatered systems over 300 km.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2024.3372472