Title :
Compact ARROW-type vertical coupler filter
Author :
Chu, Sai Tak ; Miura, Masayulu ; Kokubun, Yasuo
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
Abstract :
Compact wavelength filter utilizing the vertical coupling between a conventional ridge waveguide and a 3-D ARROW is proposed and demonstrated. Compact size and narrowband performance are achieved utilizing the large difference of waveguide dispersion between the 3-D ARROW and the ridge waveguide at single mode. A polyimide ridge waveguide was stacked on a stripe lateral confinement ARROW in an intersecting configuration with the interaction length of about 1 mm, and -3-dB linewidth of 5.5 nm was experimentally achieved.
Keywords :
integrated optics; optical couplers; optical design techniques; optical directional couplers; optical dispersion; optical polymers; optical waveguide filters; ridge waveguides; 3-D ARROW; compact ARROW-type vertical coupler filter; compact size; compact wavelength filter; dB linewidth; interaction length; large difference; narrowband performance; optical waveguide filters; polyimide ridge waveguide; ridge waveguide; single mode; stripe lateral confinement ARROW; vertical coupling; waveguide dispersion; Band pass filters; Bandwidth; Geometry; Integrated optics; Optical filters; Optical receivers; Optical waveguides; Propagation constant; Semiconductor optical amplifiers; Semiconductor waveguides;
Journal_Title :
Photonics Technology Letters, IEEE
