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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.16 no.5 (1989), pp. 486-491
Absorption and Luminescence Properties of Nd3+ Activated Optical Fibers
T. Kortenski, I. Ilev, I Koprinkov
Physics Department, Higher Institute of Mechanical and Electrical Engineering, Sofia 1156
go backPhysics Department, Higher Institute of Mechanical and Electrical Engineering, Sofia 1156
Abstract. The absorption and luminescence properties of Nd3+ activated optical fibers have been studied in the 400-1200 nm spectral range. The activator maximum tesonance absorption bands and the absoUute values of the spectral attenuation coefficients have been found. Under resonance excitation by the second harmonic of the Nd3+:YAG laser, luminescence spectra have been recorded in regions centred around 900 nm and 1060 nm. The lifetime of the upper laser level has been evaluated.