We report on the optical spectroscopy of monolithic fiber preform prepared from nanoporous bismuth-doped silica glass. The experiments reveal the existence of at least two different types of active centers and clearly demonstrate that the presence in the glass matrix of other dopant is not necessary to obtain the near-IR photoluminescence connected to Bismuth.
© 2010 Optical Society of America
Lasers and Laser Optics
Original Manuscript: January 12, 2010
Manuscript Accepted: March 10, 2010
Published: April 22, 2010
I. Razdobreev, H. El Hamzaoui, V. Yu. Ivanov, E. F. Kustov, B. Capoen, and M. Bouazaoui, "Optical spectroscopy of bismuth-doped pure silica fiber preform," Opt. Lett. 35, 1341-1343 (2010)