E. M. Dianov, A. A. Rybaltovsky, S. L. Semenov, A. N. Gur'yanov, V. F. Khopin, “Photosensitivity of heavily GeO<sub>2</sub>-doped fibres in the near UV range between 300 and 350 nm”, Kvantovaya Elektronika, 2006, Volume 36, Number 2,Pages <nobr>145

This article is cited in 1 paper

Optical fibres and waveguides

Photosensitivity of heavily GeO₂-doped fibres in the near UV range between 300 and 350 nm

E. M. Dianov^a, A. A. Rybaltovsky^a, S. L. Semenov^a, A. N. Gur'yanov^b, V. F. Khopin^b

^a Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod

Abstract: The photosensitivity of a fibre doped with GeO₂ with a molar concentration of 97% is studied in the near-UV region. It is found that the refractive index induced in this fibre exposed to low-intensity (150 W cm²) radiation at wavelengths of 305.5 and 333.6 nm achieves a high value (~1.5×10³ ). It is shown that the photosensitivity increases with decreasing the irradiation wavelength.

PACS: 42.81.-i, 42.70.Gi, 42.70.Nq

Received: 05.12.2005