Thermooptical digital switch arrays in silica-on-silicon with defined zero-voltage state

Author

Hoffmann, Martin ; Kopka, Peter ; Voges, Edgar

Author_Institution

Lehrstuhl fur Hochfrequenztech., Dortmund Univ., Germany

Volume

16

Issue

3

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

395

Lastpage

400

Abstract

Arrays of thermooptical digital switches for 1300 nm wavelength have been fabricated employing PECVD silica on silicon technology. The switches are based on mode sorting in asymmetric waveguide branches. An asymmetric layout of the waveguide branch/crossing leads to a defined zero-voltage state which is useful for protection switching in optical SDM-networks. The power consumption is reduced by heat flow optimization using silica and silicon microstructuring. The switch arrays are coupled to fiber ribbons

Keywords

arrays; electro-optical switches; integrated optics; optical communication equipment; optical waveguides; silicon; silicon compounds; thermo-optical effects; 1300 nm; 1300 nm wavelength; PECVD silica on silicon technology; Si; SiO₂-Si; asymmetric layout; asymmetric waveguide branches; defined zero-voltage state; fiber ribbon coupled switch arrays; heat flow optimization; microstructuring; mode sorting; optical SDM-networks; power consumption; protection switching; silica-on-silicon; switch arrays; thermooptical digital switch arrays; waveguide branch/crossing leads; Communication switching; Integrated optics; Optical fiber communication; Optical fiber polarization; Optical sensors; Optical switches; Optical waveguides; Silicon compounds; Sorting; Voltage;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.661366

Filename

661366