Open Access256 Tbit/s/ch polarization-multiplexed DQPSK transmission over 300 km using time-domain optical Fourier transformation
Author(s) -
Pengyu Guan,
Tomio Hirano,
Koudai Harako,
Yutaro Tomiyama,
Toshihiko Hirooka,
Masataka Nakazawa
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.00b567
Subject(s) - optics , polarization mode dispersion , ultrashort pulse , multiplexing , polarization (electrochemistry) , time domain , fourier transform , polarization division multiplexing , wavelength division multiplexing , phase shift keying , physics , dispersion (optics) , telecommunications , bit error rate , computer science , channel (broadcasting) , wavelength , laser , chemistry , quantum mechanics , computer vision
We demonstrate a 2.56 Tbit/s/ch polarization-multiplexed single-carrier transmission over 300 km using subpicosecond DQPSK signals. We adopted an ultrafast time-domain optical Fourier transformation technique to reduce waveform distortions. For such an ultrashort optical pulse, depolarization components resulting from second-order polarization-mode dispersion (PMD) become a dominant factor as regards signal distortion because of the broad signal bandwidth. The influence of inter-polarization crosstalk induced by second-order PMD, is presented in detail.