Accession Number : AD0622884

Title :   SOLID STATE TECHNIQUES OF MODULATING OPTICAL WAVES.

Descriptive Note : Quarterly rept. no. 1, 1 Apr-1 Jul 65.

Corporate Author : SYLVANIA ELECTRONIC SYSTEMS-EAST WALTHAM MASS APPLIED RESEARCH LAB

Report Date : 01 JUL 1965

Pagination or Media Count : 35

Abstract : The first quarter of this project was devoted primarily to the selection of an optimum material for the construction of a wide bandwidth traveling wave optical modulator. Our conclusion from this survey is that the most promising materials for this purpose are KDP and KDA. The criteria applied in selecting the optimum electro-optic material comprised availability, microwave performance, machinability, and optical characteristics. The characteristics of availability and microwave performance essentially confine our attention to the isomorphs of KDP. Such materials as KTN, cuprous chloride, zinc sulfide, and so forth were not considered in detail. The first step in evaluating the various materials was to collect together all the data on material properties which are available in the literature. A few gaps in this data were filled by experimental measurements made in this laboratory. The dielectric constant for RDA and the thermal conductivity of RDA, KDA, ADA were measured. Simultaneously with this measurement of the material properties, we composed a computer routine to calculate the microwave performance of a model which takes into account the electro-optic and the dielectric properties of the electro-optic material. (Author)

Descriptors :   (*LIGHT, MODULATORS), (*MODULATORS, LIGHT), (*OPTICAL EQUIPMENT, SOLID STATE PHYSICS), (*SOLID STATE PHYSICS, OPTICS), ELECTRON OPTICS, AMPLITUDE MODULATION, CRYSTALS, DIELECTRIC PROPERTIES, THERMAL CONDUCTIVITY, POTASSIUM COMPOUNDS, PHOSPHATES, ARSENIC COMPOUNDS, MICROWAVE EQUIPMENT, OPTICAL COMMUNICATIONS, LASERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE