Resonant tunneling three-waveguide polarization splitter

Author

Thyagarajan, K. ; Pilever, S.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., New Delhi, India

Volume

10

Issue

10

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1334

Lastpage

1337

Abstract

A design for a novel and highly efficient all-dielectric, three-waveguide polarization splitter based on the phenomenon of resonant tunneling is proposed. By considering a glass waveguide structure with an intermediate high-index guiding layer (such as silicon), it is shown that extinction ratios better than -33 dB in both the outer waveguides at a particular thickness of the high-index layer can be obtained. The tolerance required with respect to the separation between the middle and outside guides and the thickness of the high-index layer of such a device is estimated. The design should be of interest in the realization of in-line fiber-optic polarization splitters and in integrated optics

Keywords

directional couplers; integrated optics; light polarisation; optical couplers; optical design techniques; optical polarisers; optical waveguide theory; resonant tunnelling devices; Si; design; directional coupler; extinction ratios; glass waveguide structure; in-line fiber-optic polarization splitters; integrated optics; intermediate high-index guiding layer; layer separation; layer thickness; resonant tunnelling; three-waveguide polarization splitter; tolerance; Extinction ratio; Glass; Integrated optics; Optical design; Optical fiber devices; Optical fiber polarization; Optical waveguides; Resonant tunneling devices; Silicon; Waveguide components;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.166772

Filename

166772