Title :
GaAs spiral optical waveguides for delay-line applications
Author :
Hayes, Robert R. ; Yap, Daniel
Author_Institution :
Hughes Res. Lab., Malibu, CA, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
Spiral optical waveguides can be used to provide moderately long delays for a variety of microwave applications. A brief analysis of the performance limitations of spiral delay lines is presented, together with loss measurement data for spirals having air-equivalent lengths as long as 46 cm. It is shown that the present limitation to longer delay lengths is the straight-guide loss of GaAs/AlGaAs waveguides, and not bending or intersectional losses.
Keywords :
III-V semiconductors; aluminium compounds; delay lines; gallium arsenide; integrated optics; optical losses; optical waveguides; 46 cm; GaAs-AlGaAs; air-equivalent lengths; delay-line applications; loss measurement; microwave applications; semiconductors; spiral optical waveguides; straight-guide loss; Delay lines; Gallium arsenide; Length measurement; Loss measurement; Optical losses; Optical waveguides; Performance analysis; Performance loss; Propagation delay; Spirals;
Journal_Title :
Lightwave Technology, Journal of
