Phase-sensitive amplifiers for nonlinearity impairment mitigation in optical fiber transmission links
Doktorsavhandling, 2021
In this work, an investigation is made for the nonlinearity mitigation using the PSAs, by calculating the residual nonlinear distortion after the coherent superposition in a copier-PSA link. The nonlinearity mitigation efficiency in PSA links is studied with respect to modulation formats, symbol rates and number of wavelength channels. The effectiveness of nonlinearity mitigation is found to increase with higher-order modulation formats. However, the efficiency of nonlinearity mitigation decreases with increasing number of wavelength channels and increasing symbol rate resulting in larger residual nonlinear distortions. A modified Volterra nonlinear equalizer (VNLE) is implemented to reduce the residual nonlinear distortions after PSAs in single- and multi-channel PSA links. Cross-phase modulation mitigation using PSAs is also demonstrated.
modulation formats
self-phase modulation mitigation
optical transmission
nonlinearity mitigation
cross-phase modulation mitigation
phase-sensitive amplifier
copier-PSA
low-noise amplification
Volterra nonlinear equalizer
Författare
Kovendhan Vijayan
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
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Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier
Telekommunikation
Atom- och molekylfysik och optik
Annan fysik
Elektroteknik och elektronik
Infrastruktur
C3SE (Chalmers Centre for Computational Science and Engineering)
ISBN
978-91-7905-481-6
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 4948
Utgivare
Chalmers