Cascaded phase-preserving multilevel amplitude regeneration | Zendy

Tobias Roethlingshoefer | Zendy; G. Onishchukov | Zendy; Bernhard Schmauß | Zendy; Gerd Leuchs | Zendy

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Cascaded phase-preserving multilevel amplitude regeneration

Author(s) -

Tobias Roethlingshoefer,

G. Onishchukov,

Bernhard Schmauß,

Gerd Leuchs

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.031729

Subject(s) - amplitude , optics , quadrature amplitude modulation , phase modulation , robustness (evolution) , phase shift keying , phase noise , amplitude modulation , phase (matter) , physics , nonlinear system , telecommunications , computer science , bit error rate , frequency modulation , bandwidth (computing) , channel (broadcasting) , biochemistry , chemistry , quantum mechanics , gene

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.

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