We have investigated the spectroscopic properties of a crystalline sapphire fiber unintentionally doped with Cr3+. We find that tensile stress produces blue shifts of the R lines and changes in their radiative lifetimes and integrated intensities that can be correlated to stress-induced changes of the crystal-field parameters.
© 1988 Optical Society of America
Original Manuscript: May 9, 1988
Manuscript Accepted: July 6, 1988
Published: October 1, 1988
Huimin Liu, A. M. Buoncristiani, C. E. Byvik, Ki-Soo Lim, Weiyi Jia, E. Strauss, and W. M. Yen, "Effects of tensile stress on the R lines of Cr3+ in a sapphire fiber," Opt. Lett. 13, 931-933 (1988)