All-optical phase-preserving multilevel amplitude regeneration
Röthlingshöfer T, Richter T, Schubert C, Onishchukov G, Schmauß B, Leuchs G (2014)
Publication Language: English
Publication Type: Journal article
Publication year: 2014
Journal
Publisher: Optical Society of America
Book Volume: 22
Pages Range: 27077
Volume: 22
Issue: 22
Journal Issue: 22
DOI: 10.1364/oe.22.027077
Abstract
The possibility of all-optical phase-preserving amplitude regeneration for star-8QAM is demonstrated using a modified nonlinear optical loop mirror. Experiments show a reduction in amplitude noise on both amplitude levels simultaneously, considering two different types of signal distortions: deterministic low-frequency amplitude modulation and broadband amplitude noise. Furthermore, using this amplitude regeneration, the robustness against nonlinear phase noise from fiber nonlinearity in a transmission line is increased. The scheme suppresses the conversion of amplitude noise to nonlinear phase noise. This is shown for simultaneous amplitude regeneration of the two amplitude states as well as for amplitude regeneration of the high-power states only. If the transmission is limited by nonlinear phase noise, single-level operation at the more critical higher-power state will benefit because of the wider plateau region. Numerical simulations confirm the experimental results.
Authors with CRIS profile
Tobias Röthlingshöfer
Lehrstuhl für Experimentalphysik (Optik)
Georgy Onishchukov
Bernhard Schmauß Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik Gerhard Leuchs Lehrstuhl für Experimentalphysik (Optik)
Bernhard Schmauß Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik Gerhard Leuchs Lehrstuhl für Experimentalphysik (Optik)
Additional Organisation(s)
Involved external institutions
Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light
Germany (DE)
Fraunhofer-Institut für Nachrichtentechnik (Heinrich-Hertz-Institut FhG HHI)
Germany (DE)
Germany (DE)
Fraunhofer-Institut für Nachrichtentechnik (Heinrich-Hertz-Institut FhG HHI)
Germany (DE)
How to cite
APA:
Röthlingshöfer, T., Richter, T., Schubert, C., Onishchukov, G., Schmauß, B., & Leuchs, G. (2014). All-optical phase-preserving multilevel amplitude regeneration. Optics Express, 22(22), 27077. https://doi.org/10.1364/oe.22.027077
MLA:
Röthlingshöfer, Tobias, et al. "All-optical phase-preserving multilevel amplitude regeneration." Optics Express 22.22 (2014): 27077.
BibTeX: Download