Modulation format dependence on transmission reach in phase-sensitively amplified fiber links
Journal article, 2020

Optical Society of America under the terms of the OSA Open Access Publishing Agreement We quantify the maximum transmission reach for phase-insensitive amplifier (PIA) and phase-sensitive amplifier (PSA) links with different modulation formats and show that the maximum transmission reach increase (MTRI) when using PSAs compared to PIAs is enhanced for higher-order modulation formats. The higher-order modulation formats are more susceptible to smaller phase rotations from nonlinearities, and PSAs are efficient in mitigating these smaller phase distortions. Numerical simulations were performed for single- and multi-span PIA and PSA links with single and multiple wavelength channels. We obtain a significant enhancement in the MTRI with PSAs compared to PIAs when using higher-order modulation formats for both the single- and multi-channel systems in single- and multi-span links. We verify the enhancement with a single-span, single-channel system experiment. We also demonstrate, for the first time, a 64-QAM modulation format fiber transmission in phase-sensitively amplified link, with a 13.3-dB maximum allowable span loss increase compared to a phase-insensitively amplified link.



Kovendhan Vijayan

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Zonglong He

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Benjamin Foo

Infinera Corporation

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Optics Express

1094-4087 (ISSN) 10944087 (eISSN)

Vol. 28 23 34623-34638

Subject Categories


Signal Processing





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