Baud-rate flexible clock recovery and channel identification in OTDM realized by pulse position modulation.
Opt Express
; 21(4): 4447-55, 2013 Feb 25.
Article
em En
| MEDLINE
| ID: mdl-23481978
ABSTRACT
We propose a novel scheme of OTDM utilizing pulse position modulation, where optical null headers (ONH) are inserted between the signal pulses periodically to allow channel identification. The ONH also achieves in-band clock distribution through the generation of high contrast pilot tone on the signal power spectra, enabling baud-rate flexible clock recovery. Using the novel scheme, clock recovery with a timing jitter of less than 200 fs is achieved at different baud rates up to 344 Gbaud. We demonstrate stable clock recovery with channel identification in 344-Gb/s OTDM transmissions over dispersion managed 3-km SMF.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Telecomunicações
/
Processamento de Sinais Assistido por Computador
/
Dispositivos Ópticos
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article