Open AccessA single-channel 128 Tbit/s-58 km transmission in the 11 μm band with wideband GVD and slope compensation
Author(s) -
Keiichi Koizumi,
Masato Yoshida,
Toshihiko Hirooka
Publication year - 2013
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.21.029055
Subject(s) - optics , materials science , channel spacing , terabit , dispersion shifted fiber , fiber bragg grating , single mode optical fiber , photonic crystal fiber , optoelectronics , wavelength division multiplexing , physics , optical fiber , wavelength , fiber optic sensor
We describe a 1.28 Tbit/s single-channel transmission in the 1.1 μm band that uses a high-Δ single-mode step-index fiber (SIF) and ytterbium-doped fiber amplifiers (YDFAs). A 650 fs signal pulse was generated from a 10 GHz mode-locked Yb fiber laser (Yb MLFL) that was soliton-compressed by using an anomalous dispersion photonic crystal fiber (PCF). The dispersion of the SIF was compensated over a bandwidth as broad as 2.1 THz with two cascaded chirped fiber Bragg gratings (FBGs). In addition, an enhanced pre-chirping technique was newly adopted for the precise elimination of the large waveform distortion caused by the dispersion slope. As a result, 320 Gbit/s-161 km and 1.28 Tbit/s-58 km transmissions were successfully achieved.