Accession Number : AD0774733

Title :   Optimization of Optical Waveguides--Electro-Optic Studies.

Descriptive Note : Final technical rept. no. 1, Feb-Dec 73,

Corporate Author : CORNING GLASS WORKS N Y

Personal Author(s) : Maurer,R. D. ; Keck,D. B. ; Todd,B. J.

Report Date : 15 DEC 1973

Pagination or Media Count : 30

Abstract : Experimental measurements of the spatial and temporal transfer of power of a 225 meter length of low-loss optical waveguide have been made. In particular, measurement of the angular attenuation showed substantial loss of the high order modes which reflected itself in an approximately 8.2 nsec/km decrease in measured dispersion. Additionally there was a reduction of the effective numerical aperture from 0.15 to 0.12. Negligible mode coupling was observed in this particular waveguide which allowed a phenomenological calculation of temporal output for an assumed uniform excitation of all modes. This agreed well with experimental measurements. Calculation of this output from knowledge of the index profile is presently not in agreement and some possible reasons are indicated. The first measurements of the temperature dependence of attenuation were made to determine the approximate size of the effect. Only small changes were detected up to about 400C. (Author)

Descriptors :   *Fiber optics transmission lines, *Electrooptics, Optimization, Silica glass, Light transmission, Gallium arsenide lasers, Light scattering, Optical communications

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE