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Cascaded phase-preserving multilevel amplitude regeneration

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Roethlingshoefer,  Tobias
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Onishchukov,  Georgy
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Schmauss,  Bernhard
Schmauß Group, Associated Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Roethlingshoefer, T., Onishchukov, G., Schmauss, B., & Leuchs, G. (2014). Cascaded phase-preserving multilevel amplitude regeneration. OPTICS EXPRESS, 22(26), 31729-31734. doi:10.1364/OE.22.031729.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6466-0
Abstract
The performance of cascaded in-line phase-preserving amplitude regeneration using nonlinear amplifying loop mirrors has been studied in numerical simulations. As an example of a spectrally efficient modulation format with two amplitude states and multiple phase states, the regeneration performance of a star-16QAM format, basically an 8PSK format with two amplitude levels, was evaluated. An increased robustness against amplified spontaneous emission and nonlinear phase noise was observed resulting in a significantly increased transmission distance. (C) 2014 Optical Society of America