Accession Number : ADA082450


Title :   Infrared Fiber Optics.


Descriptive Note : Interim rept. 14 Apr 78-14 Apr 79,


Corporate Author : HUGHES RESEARCH LABS MALIBU CA


Personal Author(s) : Harrington,James A ; Turk,R ; Henderson,M ; Myer,Jon


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA082450


Report Date : Dec 1979


Pagination or Media Count : 51


Abstract : This interim technical report summarizes the first year's research efforts to fabricate optical communications fibers that are transmissive between 1 and 12 micrometers. The ultimate objective of this program is to prepare infrared transmitting fibers with losses less than 5 dB/km. In preparing infrared transparent fibers with these losses, we are emphasizing the extrusion into fiber of very pure KCl as this material has demonstrated bulk losses equal to or less than 5 dB/km in the 2- to 6-micrometers region. The primary approach used to meet the program goals, therefore, was the extrusion of reactive atmosphere process (RAP) grown KCl into 250- to 1000-micrometers-diameter optical fibers. After one year of effort, the best KCl fiber extruded had a loss of 4200 dB/km. This report also summarizes our efforts in fabricating a special infrared fiber prototype device for the detection of pulsed CO2 laser radiation. The prototype device, which is to be used in a battlefield identification friend or foe (BIFF) application, was successfully field tested in Germany.


Descriptors :   *FIBER OPTICS , *INFRARED SPECTRA , TEST AND EVALUATION , INFRARED DETECTION , FABRICATION , EXTRUSION , LASER BEAMS , LOW LOSS , RADIATION ABSORPTION , POTASSIUM CHLORIDE , CARBON DIOXIDE LASERS , FIELD CONDITIONS , IFF SYSTEMS


Subject Categories : Infrared Detection and Detectors
      Fiber Optics and Integrated Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE