Title :
Low-loss y-branch waveguides designed by wavefront matching method and their application to a compact 1 x 32 splitter
Author :
Sakamaki, Y. ; Saida, T. ; Tamura, M. ; Hashimoto, T. ; Takahashi, H.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi Kanagawa
Abstract :
A compact and low-loss Y-branch splitter is designed made with a high refractive-index difference waveguide and using the authors´ wavefront matching method. The splitter was then fabricated using silica-based planar lightwave circuit technology. Excess loss was less than 0.2 dB per branch over a wide wavelength range of 1250 to 1650 nm
Keywords :
optical beam splitters; optical planar waveguides; refractive index; 1250 to 1650 nm; high refractive-index difference waveguide; low-loss Y-branch splitter; low-loss Y-branch waveguides; silica-based planar lightwave circuit technology; wavefront matching method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070083
