In-line and cascaded DWDM transmission using a 15dB net-gain polarization-insensitive fiber optical parametric amplifier


We demonstrate and characterize polarization-division multiplexed (PDM) DWDM data transmission for the first time in a range of systems incorporating a net-gain polarization-insensitive fiber optical parametric amplifier (PI-FOPA) for loss compensation. The PI-FOPA comprises a modified diversity-loop architecture to achieve 15dB net-gain, and up to 2.3THz (~18nm) bandwidth. Three representative systems are characterized using a 100Gb/s PDM-QPSK signal in conjunction with emulated DWDM neighbouring channels: (a) a 4x75km in-line fiber transmission system incorporating multiple EDFAs and a single PI-FOPA (b) N cascaded PI-FOPA amplification stages in an unlevelled Nx25km recirculating loop arrangement, with no EDFAs used within the loop signal path, and (c) M cascaded PI-FOPA amplification stages as part of an Mx75.6km gain-flattened recirculating loop system with the FOPA compensating for the transmission fiber loss, and EDFA compensation for loop switching and levelling loss. For the 4x75km in-line system (a), we transmit 45x50GHz-spaced signals (‘equivalent’ data-rate of 4.5Tb/s) with average OSNR penalty of 1.3dB over the band at 10−3 BER. For the unlevelled ‘FOPA-only’ 25.2km cascaded system (b), we report a maximum of eight recirculations for all 10x100GHz-spaced signals, and five recirculations for 20x50GHz-spaced signals. For the 75.6km levelled system (c), we achieve eight recirculations for all 20x50GHz signals resulting in a total transmission distance of 604.8km.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 2017 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. Funding: UK Engineering and Physical Sciences Research Council (EPSRC) grants EP/M005283/1 (UPON) and EP/J017582/1 (UNLOC); II-VI for CASE studentship of V. Gordienko.
Uncontrolled Keywords: Fiber optics amplifiers and oscillators,Fiber optics communications,Nonlinear optics, parametric processes
Publication ISSN: 1094-4087
Last Modified: 18 Mar 2024 08:22
Date Deposited: 23 Oct 2017 09:35
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Related URLs: https://www.osa ... =oe-25-20-24312 (Publisher URL)
PURE Output Type: Article
Published Date: 2017-09-25
Accepted Date: 2017-09-18
Authors: Stephens, M. F. C. (ORCID Profile 0000-0002-6533-1893)
Tan, M. (ORCID Profile 0000-0002-0822-8160)
Gordienko, V. (ORCID Profile 0000-0002-9141-828X)
Harper, P. (ORCID Profile 0000-0002-9495-9911)
Doran, N. J. (ORCID Profile 0000-0001-8309-8805)



Version: Accepted Version

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