Title :
High efficiency coupling from busline of vertically coupled microring resonator filter to optical fibres
Author :
Kato, Tomoyuki ; Suzuki, Shuichi ; Kokubun, Yasuo
Author_Institution :
Graduate Sch. of Eng., Yokohama Nat. Univ., Japan
Abstract :
The input/output coupling loss of vertically coupled microring resonator filters was improved by introducing busline waveguides with large spot size, i.e. the ARROW-type waveguide and the rectangular busline waveguide with a spot size transformer. Clear dropping responses were demonstrated for the ARROW based microring resonator filters and the coupling loss was successfully reduced by 22 dB.
Keywords :
integrated optics; optical fibre couplers; optical losses; optical waveguide filters; resonator filters; ARROW-type waveguide; add/drop wavelength filter; busline waveguides; coupling loss reduction; dropping responses; high efficiency coupling; input/output coupling loss; large spot size; optical fibres; rectangular busline waveguide; spot size matching; spot size transformer; vertically coupled microring resonator filter; Interference; Optical coupling; Optical fibers; Optical filters; Optical resonators; Optical surface waves; Optical waveguides; Rectangular waveguides; Resonator filters; Surface waves;
Conference_Titel :
Fibre and Optical Passive Components, 2002. Proceedings of 2002 IEEE/LEOS Workshop on
Print_ISBN :
0-7803-7556-4
DOI :
10.1109/FOPC.2002.1015826
