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

Volume

9

Issue

5

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

634

Lastpage

635

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.588168

Filename

588168