TM-pass glass waveguide polariser with periodic multilayer cladding overlaid with isotropic dielectric media

Author

Baba, K. ; Iden, T. ; Miyagi, M.

Author_Institution

Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan

Volume

36

Issue

17

fYear

2000

fDate

8/17/2000 12:00:00 AM

Firstpage

1461

Lastpage

1462

Abstract

A novel TM-pass waveguide polariser, the cladding of which consists of a periodic dielectric multilayer overlaid with a fully-thick isotropic dielectric layer with a higher refractive index, is proposed for integrated optics formed on a glass substrate. As the periodic multilayer is used as birefringent media, it seems that the proposed waveguide polariser becomes more compact and stable, and cheaper, compared with a hybrid waveguide polariser using birefringent crystal as the cladding. TM-pass waveguide polarisers using alumina-silica periodic multilayers thinner than 20 μm have been designed. It has been theoretically confirmed that an extinction ratio of ⩾20 dB and insertion loss of ⩽0.001 dB can be achieved

Keywords

alumina; birefringence; claddings; inhomogeneous media; optical design techniques; optical glass; optical losses; optical multilayers; optical planar waveguides; optical polarisers; optical waveguide components; refractive index; silicon compounds; 0.001 dB; 20 mum; Al₂O₃-SiO₂; TM-pass glass waveguide polariser; TM-pass waveguide polariser; TM-pass waveguide polarisers; alumina-silica periodic multilayers; birefringent crystal; birefringent media; cladding; design; extinction ratio; fully-thick isotropic dielectric layer; glass substrate; hybrid waveguide polariser; insertion loss; integrated optics; isotropic dielectric media; periodic dielectric multilayer; periodic multilayer; periodic multilayer cladding; refractive index; waveguide polariser;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20001050

Filename

865037