Temperature-insensitive reflective arrayed-waveguide grating multiplexers

Author

De Peralta, L. Grave ; Bernussi, A.A. ; Gorbounov, V. ; Temkin, H.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA

Volume

16

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

831

Lastpage

833

Abstract

We present a new approach to temperature compensation of silica-based arrayed-waveguide grating multiplexers. An external mirror rotating with temperature at a constant rate, in combination with a reflective multiplexer, is used to compensate for the temperature-induced change of the refractive index, and the resulting wavelength shift of individual channels, making the device athermal. A wavelength-temperature slope of less than 3.2×10^-4nm/°C was obtained in the temperature range 5°C-70°C, without noticeable degradation in the device performance.

Keywords

arrayed waveguide gratings; compensation; infrared spectra; mirrors; multiplexing equipment; optical communication equipment; refractive index; silicon compounds; wavelength division multiplexing; 5 to 70 degC; SiO₂; athermal device; reflective multiplexer; silica-based arrayed-waveguide grating multiplexers; temperature compensation; temperature-induced refractive index change; temperature-insensitive reflective arrayed waveguide grating multiplexers; wavelength shift; Arrayed waveguide gratings; Mirrors; Refractive index; Silicon; Temperature dependence; Temperature distribution; Temperature sensors; Thermal degradation; Thermal expansion; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.823717

Filename

1269810