Accession Number : AD0903809

Title :   Total Internal Reflection (TIR) Modulator Feasibility Study.

Descriptive Note : Final research and development contract status rept. 30 Jun 71-Aug 72,

Corporate Author : PHILCO-FORD CORP NEWPORT BEACH CA AERONUTRONIC DIV

Personal Author(s) : White, Matthew B.

Report Date : AUG 1972

Pagination or Media Count : 57

Abstract : An experimental program was carried out to determine whether electro-optic modulation of the phase shifts produced upon internal total reflection constitutes a viable technique for broadband modulation of CO2 laser output. Although the results are not conclusive, strong evidence was obtained that the electro-optic properties of KTN are not enhanced near 10.6 micrometer and that the achievable electrically-induced refractive index variations in this material are not large enough to make the TIR modulation technique practical. The experimental results furthermore imply that the large 10.6 micrometer modulation depths that were previously obtained using KTN were produced by piezo-electric modulation of an air gap between the TIR prism and modulator crystal. (Author)

Descriptors :   *REFLECTION), *ELECTROOPTICS), (*GAS LASERS, CARBON DIOXIDE), (*POTASSIUM COMPOUNDS, (*MODULATORS, PERFORMANCE(ENGINEERING), BROADBAND, MODULATION, FEASIBILITY STUDIES, TANTALUM, NIOBATES, CRYSTALS, PIEZOELECTRIC EFFECT.

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE