Showing papers on "Hard-clad silica optical fiber published in 1970"
Patent•
11 May 1970TL;DR: In this paper, a waveguide with a high purity fused silica cladding layer, and a core of high plurality fused silicas doped with a sufficient amount of a multivalent metal oxide so as to increase the index of refraction of the core above that of the cladding, is presented.
Abstract: An optical waveguide having a high purity fused silica cladding layer, and a core of high plurality fused silica doped with a sufficient amount of a multivalent metal oxide so as to increase the index of refraction of the core above that of the cladding layer.
66 citations
20 citations
18 citations
Patent•
10 Aug 1970TL;DR: In this article, a process of making glass fiber mat using a composition which is substantially fugitive in nature for use in the treatment of glass fibers to provide easier filamentization of fiber strands, and which is especially adapted for use on glass fibers which are to be used in the production of glass fiber mats when maximum water-repellent properties are desired.
Abstract: A process of making glass fiber mats using a composition which is substantially fugitive in nature for use in the treatment of glass fibers to provide easier filamentization of fiber strands, and which is especially adapted for use on glass fibers which are to be used in the production of glass fiber mats when maximum water-repellent properties are desired. In a preferred embodiment the composition consists of 3,5-dimethyl-1-hexyn-3-01 plus a minor amount of iso-octyl-phenoxy-polyoxyethylene ethanol.
4 citations
2 citations
01 Jun 1970
TL;DR: In this paper, a compatible core and clad glass for fiber optic applications was developed for ultra-high resolution cathode ray tubes (CVRT) with a theoretical numerical aperture in excess of 0.8.
Abstract: Compatible core and clad glasses transmitting peak uv radiation at 320nm have been developed for fiber optic applications. Research was conducted to formulate compositions having high transmission in the near- and medium-ultraviolet region and capable of being fabricated into fiber optic faceplates for ultra-high resolution cathode ray tubes. The glass forming the radiation transmitting core is a lanthanum-zinc-borate composition having an index of refraction (nd) of 1.71 and peak internal transmission of over 80% at 320nm for 1/4-in. thick-ness. A matching potassium-alumino-boro-silicate cladding glass having a low index of refraction (nd = 1.47) was also developed. Both glasses possessed compatible coefficients of thermal expansion and softening points to produce faceplates having fiber centers approaching five microns in spacing. A theoretical numerical aperture in excess of 0.8 is achieved with these glasses.© (1970) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
2 citations