Title :
Tunable Optical Dispersion Compensator With Increased Bandwidth via Connection of a Mach–Zehnder Interferometer to an Arrayed-Waveguide Grating
Author :
Doerr, C.R. ; Chandrasekhar, S. ; Buhl, L.L.
Author_Institution :
Bell Labs., Holmdel
fDate :
4/15/2008 12:00:00 AM
Abstract :
We propose and demonstrate a novel colorless tunable optical dispersion compensator (TODC) consisting of a Mach-Zehnder interferometer (MZI) connected to an ar- rayed-waveguide grating with a thermooptic lens. The MZI approximately doubles the magnitude bandwidth at large dispersion settings. We demonstrate compensation of a 43-Gb/s nonreturn-to-zero signal dispersed over a range of -844 to + 1700 ps/nm. To our knowledge, +1700 ps/nm is the largest demonstrated dispersion compensation amount of a 40-Gb/s signal with a single TODC.
Keywords :
Mach-Zehnder interferometers; diffraction gratings; optical dispersion; optical tuning; Mach-Zehnder interferometer; arrayed-waveguide grating; bit rate 40 Gbit/s; bit rate 43 Gbit/s; nonreturn-to-zero signal; thermooptic lens; tunable optical dispersion compensator; Bandwidth; Diffraction gratings; Insertion loss; Lenses; Optical arrays; Optical fiber dispersion; Optical filters; Optical interferometry; Optical waveguides; Phased arrays; Gratings; integrated optics; optical fiber dispersion; wavelength-division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.918806
