Silver halide crystalline fibers with optical losses 50 dB/km at the CO2 laser wavelength

Leonid N. Butvina; Eugeni M. Dianov; N. V. Lichkova; Lukas Kuepper; Victor G. Plotnichenko; V. N. Savgorodnev

doi:10.1117/12.229176

3 January 1995 Silver halide crystalline fibers with optical losses 50 dB/km at the CO₂ laser wavelength

Leonid N. Butvina, Eugeni M. Dianov, N. V. Lichkova, Lukas Kuepper, Victor G. Plotnichenko, V. N. Savgorodnev

Proceedings Volume 2631, Medical and Fiber Optic Sensors and Delivery Systems; (1995) https://doi.org/10.1117/12.229176
Event: BiOS Europe '95, 1995, Barcelona, Spain

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.

Citation Download Citation

Leonid N. Butvina, Eugeni M. Dianov, N. V. Lichkova, Lukas Kuepper, Victor G. Plotnichenko, and V. N. Savgorodnev "Silver halide crystalline fibers with optical losses 50 dB/km at the CO₂ laser wavelength", Proc. SPIE 2631, Medical and Fiber Optic Sensors and Delivery Systems, (3 January 1995); https://doi.org/10.1117/12.229176

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