Integrated optical modeshape adapters in InGaAsP/InP for efficient fiber-to-waveguide coupling

Author

Brenner, T. ; Melchior, H.

Author_Institution

Inst. for Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland

Volume

5

Issue

9

fYear

1993

Firstpage

1053

Lastpage

1056

Abstract

A concept for integrated optical modeshape adapters (IOMA´s) for efficient fiber-to-waveguide coupling is realized in InGaAsP/InP. The integrated optical modeshape adapters (IOMA´s) combine vertically tapered waveguide cores with simultaneously up-tapered upper claddings. Their OEIC-compatible fabrication process is based on diffusion-limited etching for the waveguide core tapers and selective area regrowth with LP-MOVPE for the up-tapered upper claddings, both using the same dielectric mask. First realized devices, when coupled to lensed single-mode fibers (SMF´s), show optical losses as low as 1 dB per facet at 1.53- mu m wavelength.<>

Keywords

gallium arsenide; gallium compounds; indium compounds; integrated optics; masks; optical couplers; optical losses; optical waveguides; 1.53 mum; InGaAsP-InP; InGaAsP/InP; LP-MOVPE; OEIC-compatible fabrication; diffusion-limited etching; fiber-to-waveguide coupling; integrated optical modeshape adapters; lensed single-mode fibers (; optical losses; selective area regrowth; up-tapered upper claddings; vertically tapered waveguide cores; waveguide core tapers; Dielectrics; Etching; Indium phosphide; Integrated optics; Optical coupling; Optical device fabrication; Optical devices; Optical fiber devices; Optical fiber losses; Optical waveguides;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.257189

Filename

257189