Accession Number : AD0652501

Title :   FURTHER RESEARCH ON OPTICAL TRANSMISSION LINES,

Corporate Author : AUTONETICS ANAHEIM CALIF RESEARCH AND ENGINEERING DIV

Personal Author(s) : Shaw,C. B. , Jr. ; French,B. T. ; Warner,Charles , III

Report Date : MAY 1967

Pagination or Media Count : 61

Abstract : Theoretical and experimental research was conducted on the basic phenomena underlying operation of thin film dielectric structures as electromagnetic waveguides at optical frequencies. An outstanding accomplishment for the period was successful computation of dispersion curves for dominant odd and even modes of dielectric waveguides of finite rectangular cross section. Analysis was based on a variational technique in which the relative dielectric constant of the waveguide is sought as the stationary eigenvalue of a fundamental waveguide integral equation. The basic obstacle to more general numerical analysis based on the fundamental equation is its singular kernel. This fact motivated research in applied mathematics, from which evolved a novel technique for solution of such problems. While not yet conclusive, early tests of the latter technique are very promising. Experimental results include measurements of the far-field diffraction pattern for light transmitted through thin film dielectric waveguides. Both coherent (laser) and incoherent sources were used. Polarization effects in the new field have also been studied. Minute structural imperfections in the thin films can now be detected and avoided. (Author)

Descriptors :   (*WAVEGUIDES, FILMS), (*TRANSMISSION LINES, LIGHT TRANSMISSION), DIELECTRICS, POLARIZATION, INTEGRAL EQUATIONS, SCATTERING, LASERS

Subject Categories : Electrical and Electronic Equipment
      Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE