Share Email Print
cover

Proceedings Paper

UV And Gamma Induced Colour Centres In Germanium-Doped Silica Glass And Fibers
Author(s): V. B. Neustruev; A. N. Guryanov; E. M. Dianov; V. F. Khopin; V. M . Kim; V. M. Mashinsky; M. V. Romanov; V. A. Tikhomirov
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Induced optical losses and paramagnetic Ge(n)-centres have been investigated in germanium doped silica glass and optical fibers after gamma- and UV-irradiation. It has been found that all the excitations created the similar effects. By means of selective photoexcitation Ge(1 and 3)-centres were identified in optical spectra presumably as the induced absorption bands at 4.4 eV and 6.2 eV, respectively. Moreover, for Ge(1)-centre photobleaching takes place under 266 nm excitation. In optical fibers we have observed no difference in ∝- and UV-induced loss spectra in the wavelength range from 480 nm to 1900 nm. We have found partial reversibility of the photo-colouration. The comparison of samples prepared by MCVD, VAD and PCVD techniques has been made. The origin of the dominant colour centres and their contributions to the irradiative induced losses are discussed.

Paper Details

Date Published: 26 April 1989
PDF: 8 pages
Proc. SPIE 0992, Fiber Optics Reliability: Benign and Adverse Environments II, (26 April 1989); doi: 10.1117/12.960024
Show Author Affiliations
V. B. Neustruev, Academy of Sciences of the USSR (USSR)
A. N. Guryanov, Academy of Sciences of the USSR (USSR)
E. M. Dianov, Academy of Sciences of the USSR (USSR)
V. F. Khopin, Academy of Sciences of the USSR (USSR)
V. M . Kim, Academy of Sciences of the USSR (USSR)
V. M. Mashinsky, Academy of Sciences of the USSR (USSR)
M. V. Romanov, Academy of Sciences of the USSR (USSR)
V. A. Tikhomirov, Moscow State University (USSR)


Published in SPIE Proceedings Vol. 0992:
Fiber Optics Reliability: Benign and Adverse Environments II
Roger A. Greenwell; Dilip K. Paul; Shekhar G. Wadekar, Editor(s)

© SPIE. Terms of Use
Back to Top