Title :
Ultralow-loss 1 × 8 splitter based on field matching Y junction
Author :
Gamet, J. ; Pandraud, G.
Author_Institution :
Opsitech, S.A., Grenoble, France
Abstract :
A novel approach to an ultralow-loss Y junction is introduced and designed. By adding a succession of low index regions with properly chosen parameters in the straight waveguide before the branching region, the field mismatch is improved with a power presplitting effect. In order to show that effect we fabricated, tested, and compared 1 × 8 splitters formed by cascaded conventional Y branches and the proposed field matching Y branch.
Keywords :
optical design techniques; optical fabrication; optical losses; optical planar waveguides; optical testing; 1×8 splitters; field matching Y junction; field mismatch; optical fabrication; optical planar waveguide components; optical testing; power presplitting effect; straight waveguide; ultralow-loss splitter; Insertion loss; Optical attenuators; Optical interferometry; Optical losses; Optical waveguides; Passive optical networks; Propagation losses; Testing; Waveguide discontinuities; Waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.833071
