Optimization of Optical Delay Lines based on Photonic Crystal Coupled Cavity Waveguides

Author

Gujjula, Amith ; Sabarinathan, Jayshri

Author_Institution

Univ. of Western Ontario, London

fYear

2007

fDate

3-8 June 2007

Firstpage

241

Lastpage

244

Abstract

In this paper photonic crystal (PC) based coupled cavity waveguides (CCW) were investigated for their true-time delay properties. Linear CCWs formed in a triangular lattice of air holes etched into a dielectric slab were optimized to obtain maximum possible time delays with minimum transmission losses. Depending upon the PC and cavity configurations used, delays in a wide range (0.1 - 0.6 picoseconds for every 1 mum length of CCW) were obtained. These linear waveguides would be ideal to replace conventional phase shifters in the beamforming network of phased array antennas as the effective travel path can be reduced by 52 times as compared to free-space.

Keywords

antenna phased arrays; microwave photonics; optical delay lines; optical losses; optical waveguides; photonic crystals; air holes; beamforming network; dielectric slab; linear waveguides; optical delay lines optimization; phased array antenna; photonic crystal coupled cavity waveguides; size 1 mum; time 0.1 ps to 0.6 ps; time delays; transmission losses; triangular lattice; true-time delay properties; Delay lines; Dielectric losses; Etching; Lattices; Linear antenna arrays; Optical coupling; Optical waveguides; Phased arrays; Photonic crystals; Propagation delay; Photonic crystal; coupled cavity waveguides; optical delay lines; phased array antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380372

Filename

4263789