Unrepeatered Transmission Reach Extension by Receiver-Side all-Optical Back-Propagation

Kaminski, Pawel M.; Ros, Francesco Da; Silva, E.P. Da; Clausen, A.T.; Forchhammer, Søren; Oxenløwe, Leif Katsuo; Galili, Michael

doi:10.23919/ps.2019.8817641

“…In this paper, we extend our previous work in [24]- [26] to provide an overview of OPC-based pre-or postcompensation of Kerr-induced signal distortions in unre- peatered systems. The separate results of [24]- [26] are put into perspective through a complete theoretical discussion and additional numerical investigations. The remainder of this paper is organized as follows.…”

Section: Introductionmentioning

confidence: 88%

“…OPC is based on degenerate four-wave-mixing (FWM) in a strained highly nonlinear fiber (HNLF) using bidirectional loop configuration to ensure polarization insensitivity, as in [24], [26], [32], [42]- [44], and it is accompanied by a wavelength shift from 1540 nm to 1550 nm. The conversion efficiency in the HNLF is approx -6 dB, sufficient to yield a low back-to-back conversion penalty below 0.5 dB in SNR, which becomes negligible in transmission [45]- [47].…”

Section: B Links Based On Nzdsf and Ssmfmentioning

confidence: 99%

Lumped Compensation of Nonlinearities based on Optical Phase Conjugation

Kaminski

¹

,

Daros

²

,

Yankov

³

et al. 2022

J. Lightwave Technol.

10

0

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“…In particular, it is not explicitly required to use the same fiber types on both sides of the OPC. In [30]- [32], the nonlinear integrals are matched by using a long transmission link on one side of the OPC, and a scaled-down compensation structure that mimics the nonlinear evolution on the other side. As a result, the propagation on each side of the OPC can still be equivalent, despite the different fiber types and transmission distances.…”

Section: Opc Symmetry Requirementsmentioning

confidence: 99%

Symmetry Enhancement Through Advanced Dispersion Mapping in OPC-Aided Transmission

Kaminski

¹

,

Ros

²

,

Yankov

³

et al. 2021

J. Lightwave Technol.

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General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

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“…Moreover, the standard OPC approach is unsuitable for unrepeatered transmission, where it is not feasible to perform optical conjugation along the link. For such systems, lumped compensation modules based on OPC have been previously considered at both the transmitter [6] and receiver [7], [8] . However, they were limited to standard links using erbiumdoped fiber amplifiers (EDFA), and achieved only partial propagation symmetry due to the power profile mismatch between the compensator and the link.…”

Section: Introductionmentioning

confidence: 99%