Frequency dependence of acoustooptic interaction efficiency in anisotropic graded-index waveguide
Abstract
An analysis of the dependence of the Bragg acoustooptical interaction efficiency of TE modes in a graded-index optical waveguide on the acoustic surface wave (ASW) frequency has been made. It is shown that two waveguides having different optical parameters but the same number of modes are described practically by the same frequency dependence. This conclusion is confirmed by the calculation for two four-mode waveguides on the Y-cut lithium niobate. The frequency dependence for various processes in the range 50÷550 MHz has been experimentally measured.
- Publication:
-
Applied Physics
- Pub Date:
- December 1979
- DOI:
- 10.1007/BF00895004
- Bibcode:
- 1979ApPhy..20..325K
- Keywords:
-
- Acousto-Optics;
- Frequency Response;
- Optical Waveguides;
- Surface Acoustic Wave Devices;
- Anisotropic Media;
- Coupling Coefficients;
- Efficiency;
- Lithium Niobates;
- Propagation Modes;
- Electronics and Electrical Engineering;
- PACS 42.82;
- 42.82