We report a laser cavity measurement of stimulated-emission cross sections for both the 5F1—5I5 (0.93-µm) and 5F1—5I6 (1.1-µm) laser transitions of Pm3+ ions in a lead—indium—phosphate glass host. The measured cross sections for these two transitions are 1.8 × 10-20 (±11%) and 2.8 × 10-20 cm2 (±22%), respectively. These values agree with previously reported values based on a Judd—Ofelt-type analysis of spectroscopic data.
© 1989 Optical Society of America
R. Beach, S. Weinzapfel, R. Staver, R. Solarz, M. Shinn, and W. Krupke, "Stimulated-emission cross sections of the 5F1—5I5 and 5F1—5I6 transitions of Pm3+ in a phosphate glass," Opt. Lett. 14, 856-858 (1989)