Photoinduced changes in the Raman spectra of germanosilicate optical fibres

Sergei A Vasil'ev; Evgenii M Dianov; V V Koltashev; V M Marchenko; V M Mashinsky; O I Medvedkov; V G Plotnichenko; Yu N Pyrkov; O D Sazhin; A A Frolov

doi:10.1070/QE1998v028n04ABEH001193

Quantum Electronics

NONLINEAR OPTICAL PHENOMENA AND DEVICES

Photoinduced changes in the Raman spectra of germanosilicate optical fibres

Sergei A Vasil'ev¹, Evgenii M Dianov¹, V V Koltashev¹, V M Marchenko², V M Mashinsky¹, O I Medvedkov¹, V G Plotnichenko¹, Yu N Pyrkov¹, O D Sazhin¹ and A A Frolov¹

©, 1998 Kvantovaya Elektronika and Turpion Ltd
Quantum Electronics, Volume 28, Number 4 Citation Sergei A Vasil'ev et al 1998 Quantum Electron. 28 330 DOI 10.1070/QE1998v028n04ABEH001193

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¹ Fiber Optics Research Center, Russian Academy of Sciences, Moscow, Russian Federation

² A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russian Federation

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Abstract

An investigation was made of changes in the Raman spectra of germanosilicate optical fibres as a result of UV irradiation. The photoinduced changes in the spectra were of the same nature for all types of irradiation used. These changes increased with increase in the radiation dose and in the GeO₂ concentration in the fibre core and were evidence of a structural modification of glass.

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