Title :
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
fDate :
5/15/2011 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2119473
