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MgO:LiNbO3

當(dāng)前位置： 首頁(yè) ? Products ? 非線性晶體 ? MgO:LiNbO3
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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(zhuǎn)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(yīng)用中有其獨(dú)有的優(yōu)勢(shì)。MgO:LiNbO3晶體在脈沖Nd:YAG激光器和連續(xù)Nd:YAG激光器中能夠分別地獲得超過(guò)65%的和45%的倍頻效率。MgO:LiNbO3晶體被廣泛地應(yīng)用于光參量振蕩（OPO）、光參量放大（OPA）、準(zhǔn)相位匹配及集成光波導(dǎo)中。

特點(diǎn)

  • 同質(zhì)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(yīng)

相位匹配角實(shí)驗(yàn)值（T=293K）

相互作用波長(zhǎng)[μm]Φexp?[deg]Note
SHG, o+o ? e
1.0642?0.532174.55mol% MgO, 全LN
765mol% MgO
76.55mol% MgO, Li/Nb=0.97
82.37mol% MgO
1.0795?0.5397575.15mol% MgO, 全LN
1.0796?0.5398745mol% MgO, Li/Nb=0.97
1.3414?0.6707545mol% MgO, 全LN
Note: The PM angle values are strongly dependent on melt stoichiometry.

NCPM溫度的實(shí)驗(yàn)值

相互作用波長(zhǎng)[μm]T[℃]注意
SHG, o+o ? e
1.047?0.523575.3?
1.0642?0.532125.40.6mol% MgO, 全LN
78.57mol% MgO, 沿X
85–109>5mol% MgO
1075mol% MgO
1105mol% MgO
110.65mol% MgO
110.87mol% MgO
1.0795?0.539751155mol% MgO, 全LN
注意：PM溫度值在很大程度上取決于熔體的化學(xué)計(jì)量。

角度和溫度帶寬的實(shí)驗(yàn)值

相互作用波長(zhǎng)[μm]T[℃]θpm[deg]?Δθint[deg]ΔT[℃]Note
SHG, o+o ? e
1.0642?0.53212076?0.0635mol% MgO
25.4?900.680.6mol% MgO
107902.160.735mol% MgO
110.6?900.735mol% MgO

折射率隨溫度的變化

??355nm406nm532nm633nm1064nm
鈮酸鋰25°C2.401792.326312.236222.203512.15714
50°C2.403432.328072.237652.204582.15757
75°C2.407222.33082.23942.206072.15884
摻鎂鈮酸鋰25°C2.384822.312482.22532.193232.14757
50°C2.387782.314412.226442.194242.14861
75°C2.391522.317182.228192.195672.14966

摻雜5mol%MgO的LiNbO3的折射率溫度導(dǎo)數(shù)

摻MgO 5 mol％的LiNbO3的折射率的溫度導(dǎo)數(shù)
λ[μm]dno/dT×106[ K-1]dne/dT×106[ K-1]
0.5397516.66372.763
0.632812.12164.866
1.07954.35654.19
1.34145.89552.665

5mol％MgO:LiNbO3的二階非線性系數(shù)的絕對(duì)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(qū)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(qiáng)度的角度依賴(lài)性

MgO：LiNbO3的尋常波和非尋常波在25°C時(shí)的熱光常數(shù)

參考文獻(xiàn)

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[7] Chen Y , Guo J , Liu X , et al. Highly efficient blue light of femtosecond pulses by second-harmonic generation in periodically poled MgO:LiNbO3[J]. Optics Communications, 2004, 238(1-3):201-204.
[8] Shen J , Ding C . Investigation of operational characteristics of terahertz-wave parametric oscillators pumped by picosecond based on MgO:LiNbO3 crystal[J]. Optik – International Journal for Light and Electron Optics, 2013, 124(15):2140-2146.
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[10] Hong-Ki, Kim, and, et al. Measurement of cascaded phase shift in MgO:LiNbO3 single crystal by nonlinear ellipsometric method[J]. Optics Communications, 1999.
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[12] Li Z , Bing P , Xu D , et al. High-power tunable terahertz generation from a surface-emitted THz-wave parametric oscillator based on two MgO:LiNbO3 crystals[J]. Optik – International Journal for Light and Electron Optics, 2013, 124(21):4884-4886.
[13] Li H P , Tang D Y , Ng S P , et al. Temperature-tunable nanosecond optical parametric oscillator based on periodically poled MgO:LiNbO3[J]. Optics & Laser Technology, 2006, 38(3):192-195.
[14] Dixit N , Mahendra R , Naraniya O P , et al. High repetition rate mid-infrared generation with singly resonant optical parametric oscillator using multi-grating periodically poled MgO:LiNbO3[J]. Optics & Laser Technology, 2010, 42(1):18-22.
[15] 代麗, 劉春蕊, 閆哲華, et al. Effect of dopant concentration on the spectra characteristic in Zr4+ doped Yb:Nd:LiNbO3 crystals[J]. Journal of Rare Earths, 2017(35):761-766.
[16] Bhushan R , Yoshida H , Tsubakimoto K , et al. High efficiency and high energy parametric wavelength conversion using a large aperture periodically poled MgO:LiNbO3[J]. Optics Communications, 2008, 281(14):3902-3905.
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[18] Zhang B , Jiao Z , Wang B . Efficient second-harmonic generation from polarized thulium-doped fiber laser with periodically poled MgO:LiNbO3[J]. Optics & Laser Technology, 2015, 69:60-64.
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