| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 739407 | Optics & Laser Technology | 2014 | 4 Pages |
•High-quality Nd:Yb:LiNbO3 crystals were grown by Czochralski method.•Absorption spectra, fluorescence spectra, and luminescence decay curves of Nd:Yb:LiNbO3 crystals were obtained.•Energy transfer was investigated based on emission spectra and luminescence decay curves.•Energy transfer efficiency of 86% was obtained in a nominal Nd (0.8 mol%):Yb (2.0 mol%):LiNbO3 crystal.
Nd:Yb:LiNbO3 nonlinear laser crystal is a candidate for NIR laser around 1000 nm and self-frequency-doubling laser around 500 nm, with mature pump technique using ~808-nm diode laser, via Nd3+ absorption and efficient Nd3+→Yb3+ energy transfer. High-quality Nd:Yb:LiNbO3 crystals were grown by Czochralski method, and the main spectroscopic properties of Nd3+→Yb3+ (Nd3+:4F3/2+Yb3+:2F7/2→Nd3+:4I9/2+Yb3+:2F5/2) energy transfer in LiNbO3 crystals were studied systemically based on emission spectra and luminescence decay curves. Energy transfer efficiency as high as 86% was obtained in a Nd3+ (0.8 mol%) and Yb3+ (2.0 mol%) codoped sample, so Nd:Yb:LiNbO3 laser with a higher efficiency than that of Nd:LiNbO3 laser might be achieved under identical pump conditions.
