Title :
Compact silicon-based integrated optic time delays
Author :
Yegnanarayanan, S. ; Trinh, P.D. ; Coppinger, F. ; Jalali, B.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
5/1/1997 12:00:00 AM
Abstract :
We demonstrate a 3-b (eight-channel) guided-wave optical delay line network in the silicon-on-insulator (SOI) waveguide technology with an incremental time delay of 12.3 ps measured over 2-20-GHz frequency range. The high-refractive index (compared to silica) combined with tight optical confinement and low propagation loss in the SOI waveguide enables us to realize a compact time-delay network with fine resolution time delays necessary in a high-frequency phased-array antenna.
Keywords :
antenna accessories; antenna phased arrays; delays; high-speed optical techniques; microwave antenna arrays; millimetre wave antenna arrays; optical delay lines; optical losses; optical planar waveguides; refractive index; silicon; silicon-on-insulator; 12.3 ps; 2 to 20 GHz; GHz frequency range; SOI waveguide; SOI waveguide technology; compact silicon-based integrated optic time delays; compact time-delay network; eight-channel guided-wave optical delay line network; fine resolution time delays; high-frequency phased-array antenna; high-refractive index; incremental time delay; low propagation loss; silicon-on-insulator waveguide technology; tight optical confinement; Antenna measurements; Delay effects; Delay lines; Frequency measurement; Integrated optics; Optical fiber networks; Optical waveguides; Silicon compounds; Silicon on insulator technology; Time measurement;
Journal_Title :
Photonics Technology Letters, IEEE
