Title :
Low loss mode size converter from 0.3 μm square Si wire waveguides to singlemode fibres
Author :
Shoji, T. ; Tsuchizawa, T. ; Watanabe, T. ; Yamada, K. ; Morita, H.
Author_Institution :
NTT Telecommun. Energy Labs., Kanagawa, Japan
fDate :
12/5/2002 12:00:00 AM
Abstract :
A novel integrated mode size converter for single-mode Si wire waveguides is presented. The mode size converter is constructed with two-dimensional tapered Si waveguides and overlaid high-index polymer waveguides. We calculated the proposed mode size converter characteristics, and fabricated 1.09 mm length Si wire waveguides with the converters. The measured loss of the mode size converter was 0.8 dB per conversion, and the total insertion loss through the sample with an Si wire waveguide was 3.5 dB.
Keywords :
integrated optics; optical fabrication; optical fibre couplers; optical losses; silicon; silicon-on-insulator; 0.3 μm square Si wire waveguides; 0.3 micron; 0.8 dB; 1.09 mm; 3.5 dB; Si; connecting device; integrated mode size converter; integrated optical circuits; low loss mode size converter; overlaid high-index polymer waveguides; singlemode fibres; total insertion loss; two-dimensional tapered Si waveguides;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20021185
