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Proceedings Paper

Silver halide crystalline fibers with optical losses 50 dB/km at the CO2 laser wavelength
Author(s): Leonid N. Butvina; Eugeni M. Dianov; N. V. Lichkova; Lukas Kuepper; Victor G. Plotnichenko; V. N. Savgorodnev
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Paper Abstract

For the first time crystalline fibers with optical losses 0.05 dB/m at 10.6 micrometer, 0.2 dB/m at 5 - 6 micrometer and 0.7 dB/m at 2.94 micrometer have been fabricated from solid solution AgClBrI by hot extrusion. Optical losses and numerical aperture for fibers have been measured throughout infrared spectra. Power delivery of carbon dioxide-, Er3+- lasers has been investigated. Fibers with diameter 0.5, 0.7 mm are able to deliver linearly at least up to 80 W power of cw carbon dioxide laser. Fibers demonstrate stable delivery of 40 W power for 200 hours. Fibers were not damaged by 0.5 J/pulse in msec pulse operation of Er3+ laser at 2.94 micrometer. Fibers have low mode mixing and low bending losses. Mechanical properties are the same like for ordinary AgClBrI strong solution fibers. Fibers have long shell-life. Clad crystalline AgClBrI fibers with optical losses 0.2 dB/m at 10.6 micrometer and diameter 0.7/0.9 mm have been fabricated. Clad fibers have numerical aperture 0.3 - 0.5. Clad fibers stable deliver 20 W power of cw carbon dioxide laser on the distance of 2 m with total transmission 73% for 200 hours.

Paper Details

Date Published: 3 January 1995
PDF: 6 pages
Proc. SPIE 2631, Medical and Fiber Optic Sensors and Delivery Systems, (3 January 1995); doi: 10.1117/12.229176
Show Author Affiliations
Leonid N. Butvina, General Physics Institute (Russia)
Eugeni M. Dianov, General Physics Institute (Russia)
N. V. Lichkova, General Physics Institute (Russia)
Lukas Kuepper, Physikalisches Institut RWTH (Germany)
Victor G. Plotnichenko, General Physics Institute (Russia)
V. N. Savgorodnev, General Physics Institute (Russia)

Published in SPIE Proceedings Vol. 2631:
Medical and Fiber Optic Sensors and Delivery Systems
Nathan I. Croitoru; Mitsunobu Miyagi; Guillermo Orellana; Annamaria Verga Scheggi; Henricus J. C. M. Sterenborg, Editor(s)

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