Irradiation of Tm3+ fibers with blue light at 476 nm induces a broad-bandwidth loss in these fibers. We have measured the spectral dependence of the loss for both silica–germania and silica–alumina fibers and show through micro-Raman studies of the core regions of the fibers that this induced loss is correlated with the production of structural defects in the glass host.
© 1993 Optical Society of America
Original Manuscript: July 16, 1993
Published: December 15, 1993
W. S. Brocklesby, J. R. Lincoln, A. Mathieu, and R. S. Brown, "Defect production in silica fibers doped with Tm3+," Opt. Lett. 18, 2105-2107 (1993)