Crystalline silver halide fibers with optical losses lower than 50 dB/km in broad IR region

Leonid N. Butvina; Eugeni M. Dianov; N. V. Lichkova; V. N. Zavgorodnev; Lukas Kuepper

doi:10.1117/12.372802

10 December 1999 Crystalline silver halide fibers with optical losses lower than 50 dB/km in broad IR region

Leonid N. Butvina, Eugeni M. Dianov, N. V. Lichkova, V. N. Zavgorodnev, Lukas Kuepper

Proceedings Volume 3849, Infrared Optical Fibers and Their Applications; (1999) https://doi.org/10.1117/12.372802
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

For the first time crystalline silver halides optical fibers with optical losses lower than 50 dB/km in broad region from 9 to 14 micron were fabricated by an extrusion process. The optical loss mechanism essential to lowest absorption in silver halides materials and fibers as intraband absorption by free holes in valence band are proposed. The crystalline fibers with Rayleigh type (lambda) ^-4 optical scattering were obtained. The IR region near 13 micron in AgBrI fibers with optical losses less than 10 dB/km was discovered. Non aged, stable IR polycrystalline silver halides optical fiber cables with losses, lower than 1 dB/m in region from 3 to 20 microns are presented. Various applications of developed ATR and reflection remote FTIR sensors, based on low losses silver halides fibers are discussed.

Citation Download Citation

Leonid N. Butvina, Eugeni M. Dianov, N. V. Lichkova, V. N. Zavgorodnev, and Lukas Kuepper "Crystalline silver halide fibers with optical losses lower than 50 dB/km in broad IR region", Proc. SPIE 3849, Infrared Optical Fibers and Their Applications, (10 December 1999); https://doi.org/10.1117/12.372802

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