Title :
Y-branch waveguides with stabilized splitting ratio designed by wavefront matching method
Author :
Sakamaki, Y. ; Saida, T. ; Shibata, T. ; Hida, Y. ; Hashimoto, T. ; Tamura, M. ; Takahashi, H.
Author_Institution :
NTT Photonics Labs., NTT Corp., Kanagawa, Japan
fDate :
4/1/2006 12:00:00 AM
Abstract :
We designed optical Y-branch waveguides with a stabilized splitting ratio by using a new design approach based on the wavefront matching method. The designed Y-branches were fabricated using silica-based planar lightwave circuit technology. We suppressed any variation in the splitting ratio of the Y-branch experimentally and obtained excess losses of <0.35 dB over a wide wavelength range of 1.3-1.7 μm.
Keywords :
optical design techniques; optical losses; optical planar waveguides; silicon compounds; 1.3 to 1.7 mum; SiO/sub 2/; Y-branch waveguides; optical waveguide design; silica-based planar lightwave circuit technology; stabilized splitting ratio; wavefront matching; Circuits; Optical design; Optical filters; Optical losses; Optical refraction; Optical variables control; Optical waveguides; Passive optical networks; Refractive index; Waveguide junctions; Design methodology; optical planar waveguides; waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.871836
