Principles of a resonant cavity optical modulator
Abstract
A description is given of the principles of a resonant cavity optical modulator capable of modulation frequencies in the 10-GHz range. The dispersive properties of waveguides are used to achieve phase matching of the optical and RF waves, which differ in velocity by a factor of 3 in bulk electrooptic materials. The difference in propagation velocities also makes it possible to form a rectangular cavity with two opposite sides open through which the optical beam may be easily passed. A modulator employing this design is thus efficient in its use of RF power and is easily optically aligned.
- Publication:
-
Applied Optics
- Pub Date:
- February 1986
- DOI:
- 10.1364/AO.25.000510
- Bibcode:
- 1986ApOpt..25..510G
- Keywords:
-
- Cavity Resonators;
- Light Modulation;
- Modulators;
- Optical Resonators;
- Optical Communication;
- Spectroscopy;
- Electronics and Electrical Engineering;
- MODULATORS;
- ELECTROOPTICS;
- MICROWAVES