Title :
A novel bidirectional add/drop module using waveguide grating routers and wavelength channel matched fiber gratings
Author :
Zhao, Y. ; Zhao, X.J. ; Chen, J.H. ; Choa, F.S.
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA
Abstract :
We propose and experimentally demonstrate a novel bidirectional add/drop module for single-fiber bidirectional self-healing wavelength-division-multiplexed (WDM) ring networks. The key components of this module are waveguide grating routers (WGRs) and fiber gratings. Using two circulators, the bidirectional fiber link is transformed into two separated unidirectional transmission paths within the module. The module can operate in two different WDM schemes: nonoverlapping scheme and overlapping scheme. The feasibility of these operation schemes has been confirmed by the experimental results.
Keywords :
diffraction gratings; optical circulators; optical communication equipment; optical fibre communication; telecommunication network routing; wavelength division multiplexing; WDM ring network; bidirectional add/drop module; bidirectional fiber link; circulators; nonoverlapping scheme; overlapping scheme; single-fiber bidirectional self-healing wavelength-division-multiplexed ring networks; unidirectional transmission paths; waveguide grating routers; wavelength channel matched fiber gratings; Backscatter; Circulators; Fiber gratings; Optical noise; Optical receivers; Optical reflection; Optical waveguides; Switches; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
