Abstract
Strontium aluminum pentafluoride crystals doped with chromium, SrAlF5:Cr have been shown to produce continuously tunable pi-polarized laser emission from 825 nm to 1010 nm with krypton ion laser pumping.1–4 In the more recent experiments a slope efficiency of 15% was obtained for conversion of absorbed pump radiation at 647 nm to the output beam at 910 nm, with approximately 1% output coupling from the SrAlF5:Cr laser resonator.3 The observed efficiency was considerably less than the quantum defect-limited efficiency of 71%, and led to speculation that there was a high level of loss in the material. To check this hypothesis a series of experiments has been carried out, in which the magnitude of the linear loss coefficient and the gain per unit pump power have been determined as a function of wavelength.
Work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract Ho. W-7405-ENG-48.
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References
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© 1986 Springer-Verlag Berlin Heidelberg
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Caird, J.A., Staver, P.R., Shinn, M.D., Guggenheim, H.J., Bahnck, D. (1986). Laser-Pumped Laser Measurements of Gain and Loss in SrAlF5:Cr Crystals. In: Budgor, A.B., Esterowitz, L., DeShazer, L.G. (eds) Tunable Solid-State Lasers II. Springer Series in Optical Sciences, vol 52. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-47433-3_20
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DOI: https://doi.org/10.1007/978-3-540-47433-3_20
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