Narrowband wavelength demultiplexer using weighted coupling vertical couplers

Author

Han, Sang-Kook

Author_Institution

Dept. of Radio Sci. & Eng., Yonsei Univ., Seoul, South Korea

Volume

1

fYear

1997

fDate

10-13 Nov 1997

Firstpage

326

Abstract

In this paper a four channel narrowband wavelength demultiplexer utilizing vertical directional coupler structures is proposed and investigated theoretically. Four ridge waveguides with different ridge width are vertically coupled to weakly guided strip-loaded waveguide which results in four different wavelengths filtered out in each ridge waveguide, In order to reduce the side lobes, the coupling coefficients are weighted by varying the offset of ridge waveguides from the center of strip into propagation direction

Keywords

broadband networks; demultiplexing equipment; optical couplers; optical directional couplers; optical fibre networks; optical waveguide theory; ridge waveguides; wavelength division multiplexing; WDM optical fibre communication systems; coupling coefficients; four channel narrowband wavelength demultiplexer; optical couplers; propagation direction; ridge waveguide; ridge width; side lobes; vertical directional coupler structures; vertically coupled; weakly guided strip-loaded waveguide; weighted coupling vertical couplers; Bandwidth; Channel spacing; Couplings; Directional couplers; Filters; Narrowband; Optical waveguide theory; Optical waveguides; Strips; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society Annual Meeting, 1997. LEOS '97 10th Annual Meeting. Conference Proceedings., IEEE

Conference_Location

San Francisco, CA

ISSN

1092-8081

Print_ISBN

0-7803-3895-2

Type

conf

DOI

10.1109/LEOS.1997.630647

Filename

630647