Transverse and longitudinal modes in waveguide-coupled resonators

Author

Hunt, W.D. ; Cameron, T. ; Saw, J.C.B. ; Kim, Y. ; Suthers, M.S.

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

1993

Firstpage

1509

Abstract

Transverse and longitudinal mode profiles in the resonant cavity of the surface-acoustic-wave (SAW) waveguide-coupled (WGC) resonator has been measured at various frequencies of interest using a knife-edge laser probe. In addition, the mode profiles for the device structure are predicted by two independent methods. One is a stack-matrix approach adapted from integrated optics, and the other is a conventional analytical eigenmode analysis of the Helmholtz equation. Both modeling techniques are in good agreement with the measured results. It is concluded that the versatility and accuracy of the stack matrix technique makes it useful for the calculation of mode profiles in complicated, multichannel SAW and acoustic-charge-transport (ACT) devices.<>

Keywords

crystal resonators; eigenvalues and eigenfunctions; matrix algebra; surface acoustic wave devices; ACT devices; Helmholtz equation; acoustic-charge-transport; analytical eigenmode analysis; knife-edge laser probe; longitudinal modes; mode profiles; modeling techniques; multichannel SAW devices; resonant cavity; stack-matrix approach; surface-acoustic-wave; transverse modes; waveguide-coupled resonators; Frequency measurement; Laser modes; Optical resonators; Optical surface waves; Optical waveguides; Resonance; Surface acoustic waves; Surface emitting lasers; Surface waves; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1993., IEEE MTT-S International

Conference_Location

Atlanta, GA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1209-0

Type

conf

DOI

10.1109/MWSYM.1993.276854

Filename

276854