Integrated-optic 1*128 power splitter with multifunnel waveguide

Author

Takahashi, Hiroshi ; Okamoto, Katsunari ; Ohmori, Yasuji

Author_Institution

NTT Corp., Ibaraki, Japan

Volume

5

Issue

1

fYear

1993

Firstpage

58

Lastpage

60

Abstract

An integrated-optic 1*128 power splitter is demonstrated. It is composed of a slab waveguide, funnel-shaped waveguides, and output waveguides. Input light from a fiber is diffracted in the slab waveguide and received by funnel waveguides. To achieve uniform power splitting, the width of the funnel waveguides is designed based on the Gaussian diffraction pattern; that is the funnel widths increase progressively away from the center. The splitter is fabricated with GeO/sub 2/-doped silica waveguides on silicon. The 1*128 splitting is achieved with a low excess loss of 2.3 dB and a small standard deviation of 0.63 dB.<>

Keywords

germanate glasses; integrated optics; light diffraction; optical losses; optical waveguides; 1 by 128; 2.3 dB; Gaussian diffraction pattern; Si; SiO/sub 2/GeO/sub 2/-Si; diffracted input light; excess loss; fiber; funnel widths; funnel-shaped waveguides; integrated-optic 1*128 power splitter; multifunnel waveguide; output waveguides; silica waveguides; slab waveguide; standard deviation; uniform power splitting; Electrons; Fabry-Perot; Optical arrays; Optical diffraction; Optical fiber networks; Optical reflection; Optical scattering; Optical waveguides; Silicon compounds; Slabs;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.185060

Filename

185060