Title :
Low-loss 1.5%-/spl Delta/ arrayed waveguide grating with narrow laterally tapered spotsize converter
Author :
Mizuno, T. ; Kitoh, T. ; Saida, T. ; Inoue, Y. ; Itoh, M. ; Shibata, T. ; Hibino, Y. ; Hida, Y.
Author_Institution :
Photonics Labs., NTT Corp., lbaraki, Japan
Abstract :
A low coupling loss of 0.5 dB/point between 1.5%-/spl Delta/ silica-based waveguides and a singlemode fibre has been achieved by employing a simple laterally tapered waveguide with a narrow core width. By applying this structure to an arrayed waveguide grating multiplexer, the insertion loss was decreased from 4.9 to 2.6 dB.
Keywords :
diffraction gratings; multiplexing equipment; optical arrays; optical communication equipment; optical directional couplers; optical fabrication; optical fibre communication; optical fibre couplers; optical losses; optical planar waveguides; silicon compounds; 4.9 to 2.6 dB; SiO/sub 2/; arrayed waveguide grating; arrayed waveguide grating multiplexer; insertion loss; low coupling loss; low-loss arrayed waveguide grating; narrow core width; narrow laterally tapered spotsize converter; silica-based waveguides; simple laterally tapered waveguide; singlemode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010996
