Title :
Wavelength multiplexer based on SiO2-Ta2O5 arrayed-waveguide grating
Author :
Takahashi, Hiroshi ; Suzuki, Senichi ; Nishi, Isao
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
fDate :
6/1/1994 12:00:00 AM
Abstract :
The characteristics of a wavelength multiplexer based on an arrayed-waveguide grating are carefully investigated by using the grating theory and related experiments. A 28-channel multiplexer is designed and fabricated as SiO2-Ta2O5 waveguides on a 1 cm×2 cm substrate. The designed wavelength channel spacing of 1 nm is obtained. The crosstalk to an adjacent channel is -15 dB. The measured minimum loss is 4.2 dB, which is composed of 3.4 dB excess loss and 0.8 dB grating loss
Keywords :
crosstalk; diffraction gratings; integrated optics; optical communication equipment; optical losses; optical waveguide theory; optical waveguides; silicon compounds; tantalum compounds; wavelength division multiplexing; 0.8 dB; 28-channel multiplexer; 3.4 dB; 4.2 dB; SiO2-Ta2O5; SiO2-Ta2O5 arrayed-waveguide grating; adjacent channel; crosstalk; excess loss; grating loss; grating theory; measured minimum loss; wavelength channel spacing; wavelength multiplexer; Arrayed waveguide gratings; Channel spacing; Diffraction gratings; Laboratories; Multiplexing; Optical crosstalk; Optical interferometry; Optical losses; Optical waveguides; Semiconductor waveguides;
Journal_Title :
Lightwave Technology, Journal of
