Acta Optica Sinica, Volume. 16, Issue 8, 1087(1996)
Spectra and Laser Properies of Tm:YAG Crystal
The absorption spectrum and fluorescence spectrum of Tm:YAG crystals have been measured. The oscillator strength of absorption transitions have been calculated. According to the Judd Ofelt theory, the spectral strength parameters Ω 2= 0.5×10 -20 cm 2, Ω 4 =1.0×10 -20 cm 2, Ω 6 =0.4×10 -20 cm 2 of Tm 3+ have been fitted. Then the spectral parameters of Tm 3+ including spontaneous emission oscillator strength, transition probabilities, radative lifetime, fluorescent ratio and integral emission cross-section have been calculated. Pumped with 694.3 nm ruby laser, the laser pulse of 40 mJ at 2.01 μm was obtained.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Spectra and Laser Properies of Tm:YAG Crystal[J]. Acta Optica Sinica, 1996, 16(8): 1087