Title :
Large reduction of singlemode-fibre coupling loss in 1.5% Δ planar lightwave circuits using spot-size converters
Author :
Itoh, M. ; Saida, T. ; Hida, Y. ; Ishii, M. ; Inoue, Y. ; Hibino, Y. ; Sugita, A.
Author_Institution :
NTT Photonics Labs., NTT Corp., Ibaraki, Japan
fDate :
1/17/2002 12:00:00 AM
Abstract :
Reduction of singlemode fibre coupling loss in 1.5% Δ planar lightwave circuits from 1.8 to 0.2 dB/point is achieved using simple vertically and laterally tapered spot-size converters. These spot-size converters were used to realise an arrayed-waveguide grating with a very low insertion loss of 0.7 dB
Keywords :
diffraction gratings; optical arrays; optical fibre couplers; optical losses; optical planar waveguides; 0.2 dB; 0.7 dB; 1.8 dB; arrayed-waveguide grating; laterally tapered spot-size converters; planar lightwave circuits; simple vertically tapered spot-size converters; singlemode-fibre coupling loss large reduction; spot-size converters; very low insertion loss;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020059
