Systematic design of novel wide-angle low-loss symmetric Y-junction waveguides

Author

Hsu, Jui-Ming ; Lee, Ching-Ting

Author_Institution

Inst. of Opt. Sci., Nat. Central Univ., Chung-Li, Taiwan

Volume

34

Issue

4

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

673

Lastpage

679

Abstract

To construct a low-loss and wide-branching-angle symmetric Y-junction waveguide, a novel structure is proposed. The structure consists of a pair of microprisms for precompensation and a microprism for phase-front acceleration. The structure of the Y-junction and the associated refractive indexes of microprisms are systematically derived. The simulated results using the fast Fourier transformation beam propagation method (FFT-BPM) demonstrate the performances of the proposed structure. The normalized transmitted power is more than 95% even though the branching angle is up to 200

Keywords

Fourier transform optics; compensation; integrated optics; optical design techniques; optical losses; optical prisms; optical waveguide theory; optical waveguides; associated refractive indexes; branching angle; fast Fourier transformation beam propagation method; microprisms; normalized transmitted power; phase-front acceleration; precompensation; wide-angle low-loss symmetric Y-junction waveguide design; wide-branching-angle symmetric Y-junction waveguide; Integrated optics; Optical attenuators; Optical propagation; Optical refraction; Optical variables control; Optical waveguides; Optoelectronic devices; Refractive index; Waveguide junctions; Waveguide transitions;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.663447

Filename

663447