Accession Number : AD0612902

Title :   LONG WAVELENGTH INFRARED FIBER OPTICS.

Descriptive Note : Interim engineering rept. no. 3, 16 Dec 64-15 Feb 65,

Corporate Author : OPTICS TECHNOLOGY INC BELMONT CALIF

Personal Author(s) : Kapany,N. S. ; Simms,R. J.

Report Date : MAR 1965

Pagination or Media Count : 16

Abstract : Development work on far infrared transmitting fiber optics is reported. Effort during the third quarter has been concentrated on the following: 1) additional samples of glass were evaluated in fiber draws; 2) techniques were developed to demonstrate the presence of the coating glass on a coated fiber; and 3) transmission profiles and radiation pattern measurements were recorded for two types of coated fibers. The results are included in this report. Furthermore, effort on the development of techniques for fabricating short flexible light pipes was continued and several successful samples have been made using uncoated fibers. Two glass combinations have been used to produce short lengths of good quality coated fibers. Devitrification is still a problem, producing some seeds in long lengths of fiber, but additional draws are scheduled with these glasses in an attempt to minimize this defect. The optical evaluation equipment has proved to be satisfactory for the measurements required and the characteristic curve concept has been demonstrated. Light pipe fabrication techniques have been developed and appear to be satisfactory for the production of short flexible components. (Author)

Descriptors :   (*FIBER OPTICS, INFRARED OPTICAL MATERIALS), (*INFRARED OPTICAL MATERIALS, FIBER OPTICS), (*GLASS, FIBER OPTICS), CERAMIC FIBERS, LIGHT TRANSMISSION, COATINGS, PIPES, INFRARED RADIATION, ARSENIC COMPOUNDS, SULFIDES

Distribution Statement : APPROVED FOR PUBLIC RELEASE