Recent progress in infrared chalcogenide glass fibers

A. Bornstein, N. Croitoru, E. Marom

Research output: Contribution to journalArticlepeer-review

Abstract

Chalcogenide glasses containing elements like As, Ge, Sb and Se have been prepared. A new technique of preparing the raw material and subsequently drawing fibers has been developed in order to avoid the forming of oxygen compounds. The fibers have been drawn by crucible and rod method from oxygen free raw material inside an Ar atmosphere glove box*. The fibers drawn to date with air and glass cladding have a diameter of 50-500 μm and length of several meters1. Preliminary attenuation measurements indicate that the attentuation is better than 0.1 dB/cm and it is not affected even when the fiber is bent to 2 cm circular radius. The fibegs were tested using a CO2 laser beam and were not damaged at power densities below 10 kW/cm2 CW &100 kw/cm2 using short pulses 75 n sec. The transmitted power density was 0.8 kW/cm2 which is an appropriate value to the needed for cutting and ablation of human tissues.

Original languageEnglish
Pages (from-to)99-104
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume484
DOIs
StatePublished - 16 Oct 1984

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