High-performance metal-clad multimode interference devices for low-index-contrast material systems

Author

Huang, J.Z. ; Hu, M.H. ; Fujita, J. ; Scarmozzino, R. ; Osgood, R.M., Jr.

Author_Institution

Microelectron. Sci. Lab., Columbia Univ., New York, NY, USA

Volume

10

Issue

4

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

561

Lastpage

563

Abstract

Metal cladding is proposed for enhancing performance of multimode interference (MMI) devices for low-index-contrast material systems and numerically investigated by the beam propagation method (BPM). Metal-cladding eliminates spurious phase errors due to the Goos-Hahnchen shift and thus yields improved imaging. The application of this concept is demonstrated by the simulation of a 1/spl times/8 MMI-based wavelength router using a typical low-index-contrast polymer channel waveguide and the results show that the crosstalk is significantly improved.

Keywords

integrated optics; light interference; metallic thin films; optical communication equipment; optical crosstalk; optical films; optical polymers; optical waveguides; refractive index; telecommunication network routing; 1/spl times/8 MMI-based wavelength router; Goos-Hahnchen shift; beam propagation method; crosstalk; high-performance metal-clad multimode interference devices; improved imaging; low-index-contrast material systems; low-index-contrast polymer channel waveguide; metal cladding; spurious phase errors; Circuit simulation; Coupling circuits; Crosstalk; Inorganic materials; Interference; Optical imaging; Optical waveguides; Polarization; Polymers; Wavelength routing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.662594

Filename

662594