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Direct upper-state pumping of the 2.8 μm, Er3+:YLF laser

✍ Scribed by Stoneman, R.C.; Lynn, J.G.; Esterowitz, L.

Book ID
117866912
Publisher
IEEE
Year
1992
Tongue
English
Weight
505 KB
Volume
28
Category
Article
ISSN
0018-9197

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Er3+-doped Y2O3 ceramic laser at ∼2.7 μ
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We report relevant spectroscopy and efficient diodepumped ∼ 2.7-μm laser operation of Er 3+ :Y2O3 ceramic resonantly pumped into upper laser level 4 I 11/2 . This is believed to be the first laser demonstration based on 4 I 11/2 → 4 I 13/2 transitions of Er 3+ in Y2O3. Emission cross section, ×10 -1

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Reported here is the first cryogenically-cooled performance of Er 3+ -doped Y2O3 laser based on 4 I 11/2 → 4 I 13/2 transitions. Laser material was diode-pumped directly into an upper laser manifold 4 I 11/2 in order to minimize quantum defect of this Mid-IR laser. CW output power of over 1.6 W at ∼