MgO:LiNbO3
摻雜MgO的LiNbO3，晶體較未摻雜LiNbO3，晶體具有高的光損傷閾值和高的非線性轉換效率，而且摻雜可以使拉曼散射截面增加和聲子模損耗減小。與LiNbO3晶體相比，MgO:LiNbO3 晶體在摻Nd激光器中的NCPM倍頻、混頻和光參量振蕩的應用中有其獨有的優勢。MgO:LiNbO3晶體在脈沖Nd:YAG激光器和連續Nd:YAG激光器中能夠分別地獲得超過65%的和45%的倍頻效率。MgO:LiNbO3晶體被廣泛地應用于光參量振蕩（OPO）、光參量放大（OPA）、準相位匹配及集成光波導中。
特點
- 同質性高
- 透明范圍廣
- 損傷閾值高
- 良好的光電性能
- 良好的光電彈性
- 可降低本征材料的光折變效應
相位匹配角實驗值（T=293K）
| 相互作用波長[μm] | Φexp?[deg] | Note |
| SHG, o+o ? e | ||
| 1.0642?0.5321 | 74.5 | 5mol% MgO, 全LN |
| 76 | 5mol% MgO | |
| 76.5 | 5mol% MgO, Li/Nb=0.97 | |
| 82.3 | 7mol% MgO | |
| 1.0795?0.53975 | 75.1 | 5mol% MgO, 全LN |
| 1.0796?0.5398 | 74 | 5mol% MgO, Li/Nb=0.97 |
| 1.3414?0.6707 | 54 | 5mol% MgO, 全LN |
| Note: The PM angle values are strongly dependent on melt stoichiometry. | ||
NCPM溫度的實驗值
| 相互作用波長[μm] | T[℃] | 注意 |
| SHG, o+o ? e | ||
| 1.047?0.5235 | 75.3 | ? |
| 1.0642?0.5321 | 25.4 | 0.6mol% MgO, 全LN |
| 78.5 | 7mol% MgO, 沿X | |
| 85–109 | >5mol% MgO | |
| 107 | 5mol% MgO | |
| 110 | 5mol% MgO | |
| 110.6 | 5mol% MgO | |
| 110.8 | 7mol% MgO | |
| 1.0795?0.53975 | 115 | 5mol% MgO, 全LN |
| 注意：PM溫度值在很大程度上取決于熔體的化學計量。 | ||
角度和溫度帶寬的實驗值
| 相互作用波長[μm] | T[℃] | θpm[deg] | ?Δθint[deg] | ΔT[℃] | Note |
| SHG, o+o ? e | |||||
| 1.0642?0.5321 | 20 | 76 | ?0.063 | 5mol% MgO | |
| 25.4 | ?90 | 0.68 | 0.6mol% MgO | ||
| 107 | 90 | 2.16 | 0.73 | 5mol% MgO | |
| 110.6 | ?90 | 0.73 | 5mol% MgO | ||
折射率隨溫度的變化
| ? | ? | 355nm | 406nm | 532nm | 633nm | 1064nm |
| 鈮酸鋰 | 25°C | 2.40179 | 2.32631 | 2.23622 | 2.20351 | 2.15714 |
| 50°C | 2.40343 | 2.32807 | 2.23765 | 2.20458 | 2.15757 | |
| 75°C | 2.40722 | 2.3308 | 2.2394 | 2.20607 | 2.15884 | |
| 摻鎂鈮酸鋰 | 25°C | 2.38482 | 2.31248 | 2.2253 | 2.19323 | 2.14757 |
| 50°C | 2.38778 | 2.31441 | 2.22644 | 2.19424 | 2.14861 | |
| 75°C | 2.39152 | 2.31718 | 2.22819 | 2.19567 | 2.14966 |
摻雜5mol%MgO的LiNbO3的折射率溫度導數
| 摻MgO 5 mol％的LiNbO3的折射率的溫度導數 | ||
| λ[μm] | dno/dT×106[ K-1] | dne/dT×106[ K-1] |
| 0.53975 | 16.663 | 72.763 |
| 0.6328 | 12.121 | 64.866 |
| 1.0795 | 4.356 | 54.19 |
| 1.3414 | 5.895 | 52.665 |
5mol％MgO:LiNbO3的二階非線性系數的絕對值
| |d31(0.852μm)|=4.9pm/V | |d33(0.852μm)|=28.4pm/V |
| |d31(1.064μm)|=4.4pm/V | |d33(1.064μm)|=25.0pm/V |
| |d31(1.313μm)|=3.4pm/V | |d33(1.313μm)|=20.3pm/V |
光譜
 |  |
LiNbO3和MgO LiNbO3的吸收光譜：吸收邊緣區域 | 未摻雜和摻雜MgO的LN晶體的透射光譜 |
 |  |
具有I型相匹配（oo-e）的LiNbO3：MgO（7 mol。％）晶體中SHG強度的角度依賴性 | MgO：LiNbO3的尋常波和非尋常波在25°C時的熱光常數 |
參考文獻
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