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(a) Measured absorption and emission cross-section spectra of ceramic and single crystal at room temperature. (b) Calculated minimum pump intensities for both lasers under pumping.
cw output power vs input pump power for the ceramic laser under :sapphire laser pumping at 970 and .
Stark level energy of ceramics at and single crystal. Data for are taken from Ref. 7.
Measured optical properties of ceramics and single crystal at room temperature.
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