Title :
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
fDate :
3/1/1998 12:00:00 AM
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;
Journal_Title :
Lightwave Technology, Journal of
