Extremely small polarization independent phased-array demultiplexers on InP

Author

Bissessur, H. ; Pagnod-Rossiaux, P. ; Mestric, R. ; Martin, B.

Author_Institution

Alcatel Alsthom Recherche, Marcoussis, France

Volume

8

Issue

4

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

554

Lastpage

556

Abstract

Compact, polarization insensitive phased-array wavelength demultiplexers are demonstrated with a deep ridge waveguide. Good agreement with the modeling is found for the birefringence and the refractive index. Zero birefringence is effectively obtained around 1.53 μm. The guiding structure allows curvatures of 100 μm; thus, the grating size of the 4- and 16-channel demultiplexers is reduced to 0.33×0.30 and 1.1×1.1 mm², with crosstalk below -16 and -14 dB respectively. These are the smallest demultiplexers reported to date.

Keywords

III-V semiconductors; arrays; birefringence; demultiplexing equipment; diffraction gratings; indium compounds; light polarisation; optical waveguide components; ridge waveguides; wavelength division multiplexing; 0.30 mm; 0.34 mm; 1.1 mm; 1.53 mum; 100 mum; 16-channel demultiplexers; 4-channel demultiplexers; InGaAsP; InP; birefringence; compact polarization insensitive phased-array wavelength demultiplexers; crosstalk; curvatures; deep ridge waveguide; extremely small polarization independent phased-array demultiplexers; grating size; guiding structure; modeling; refractive index; zero birefringence; Arrayed waveguide gratings; Birefringence; Etching; Indium phosphide; Optical fiber polarization; Optical waveguides; Phased arrays; Refractive index; Semiconductor waveguides; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.491224

Filename

491224