Polarization-Insensitive 320-Gb/s In-Line All-Optical Wavelength Conversion in a 320-km Transmission Span

Author

Hu, Hao ; Nouroozi, Rahman ; Ludwig, Reinhold ; Schmidt-Langhorst, Carsten ; Suche, Hubertus ; Sohler, Wolfgang ; Schubert, Colja

Author_Institution

Heinrich-Hertz-Inst., Fraunhofer Inst. for Telecommun., Berlin, Germany

Volume

23

Issue

10

fYear

2011

fDate

5/15/2011 12:00:00 AM

Firstpage

627

Lastpage

629

Abstract

Polarization-insensitive in-line all-optical wavelength conversion (AOWC) of a single-channel 320-Gb/s RZ-DQPSK data signal in the middle of a 320-km transmission span is reported. The technique is based on a Ti:PPLN waveguide in a polarization diversity scheme. The conversion efficiency of the signal was -21 dB, which includes 9.2 dB of passive losses in the whole Ti:PPLN subsystem. Error-free performance for the in-line wavelength converted signal after 320-km transmission was successfully achieved.

Keywords

differential phase shift keying; light polarisation; light transmission; optical waveguides; optical wavelength conversion; quadrature phase shift keying; LiNbO₃:Ti; RZ-DQPSK data signal; Ti:PPLN waveguide; all-optical wavelength conversion; bit rate 320 Gbit/s; distance 320 km; polarization diversity; polarization-insensitive; transmission span; Optical fiber dispersion; Optical fiber polarization; Optical transmitters; Optical wavelength conversion; Receivers; In-line all optical wavelength conversion; optical time-division multiplexing (OTDM); periodically poled lithium niobate (PPLN); polarization insensitive;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2119473

Filename

5720261