MgO: LiNbO3
MgO:LiNbO3: SHG, 2091nm—1045nm; SFG, 2091nm+1045nm—697nm；
- 1. SHG, 2091.0(o)+ 2091.0(o)= 1045.5(e);
Coating: AR 2091 & 1045 nm R<1%;
Orientation: θ= 42.90, φ= 0; - 2. SFG, 2091.0(e)+ 1045.0(o)= 696.8(e);
AR 2091 & 1045 nm&697nm R <1%;
Orientation: θ= 64.2, φ= 0;
One of the most important drawbacks of popular LiNbO3 crystal is its susceptibility to photorefractive damage (optically induced change of refractive index, usually under exposure with blue or green CW light). The usual way to eliminate this effect is to keep LN crystals at elevated temperatures (400K or more). Another way to prevent photorefractive damage is MgO-doping (usually at levels of around 5 mol% for congruent LN). What is good is that such MgO-doped congruent LiNbO3 crystals have a much lower coercive field value than undoped LN crystals.Recently, it was shown that stoichiometric LiNbO3 crystals, doped with only 1 mol% MgO, possess higher photorefractive damage threshold than 5 mol% MgO-doped congruent LN samples.
MgO:LiNbO3 – A kind of nonlinear crystal optimize the performance of LiNbO3
Pure LiNb03 (LN) is a good candidate for various optical devices, but has a major disadvantage due to its low threshold optical damage. MgO-doped LN(congruent compositions) is one of the possible solutions to deal with this problem. MgO doping has played an important role in LN and shown an increased threshold laser beam strength by 100 times. An interesting point is that every physical property of MgO-doped LN (e.g. transition temperature, activation energy, optical band , optical absorption spectra, shift of OH- vibration frequency, density, and electric activation energy based on our previous measurements4) has threshold composition at just above 5 mole% of MgO concentration.
- Homogeneity is high
- Transparency range is wide
- The value of damage threshold is high
- Good electro-optical properties
- Good photoeleastic properties
- SHG
- Waveguide modulator
- As a Q-switching in Nd: YAG lasers
- Being used in frequency doubling at room temperature for 1064nm laser light
- Electro-optic modulator
- Range finder
- Laser radar
- Mobile telephones
| Femtosecond laser written optical waveguides in z-cut MgOLiNbO3 crystal Fabrication and optical damage investigation Optical Materials 57 (2016) 169e173 |
| Highly efficient blue light of femtosecond pulses by second-harmonic generation in periodically poled MgOLiNbO3 Optics Communications 238 (2004) 201–204 |
| Investigation of operational characteristics of terahertz-wave parametric oscillators pumped by picosecond based on MgO:LiNbO3 crystal Optik 124 (2013) 2140– 2146 |
| High efficiency and high energy parametric wavelength conversion using a large aperture periodically poled MgOLiNbO3 Optics Communications 281 (2008) 3902–3905 |
| High-power tunable terahertz generation from a surface-emitted THz-wave parametric oscillator based on two MgOLiNbO3 crystals Optik 124 (2013) 4884– 4886 |
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| Analysis on the damage threshold of MgOLiNbO3 crystals under Optical Materials 60 (2016) 443e449 |
| Mid-infrared ridge waveguide in MgOLiNbO3 crystal produced by combination of swift O5+ ion irradiation and precise diamond blade dicing Optical Materials 48 (2015) 209–214 |
| Etching study of ferroelectric microdomains in LiNbO3 and MgOLiNbO3 Journal of Crystal Growth 171 (1997) 477-484 |
| Investigation on terahertz generation at polariton resonance of MgOLiNbO3 by difference frequency generation Optics &LaserTechnology69(2015)13–16 |
| Low-pump-threshold tunable optical parametric oscillator using periodically poled MgOLiNbO3 Optics Communications 273 (2007) 560–563 |
| Investigations of ferroelectric domain structures in the MgOLiNbO3 fibers by LHPG Journal of Crystal Growth 198/199 (1999) 531D535 |
| Optical and structural characterization of annealed proton exchange waveguides in Y-cut MgOLiNbO3 Optical Materials 27 (2005) 1596–1601 |
| Measurement of cascaded phase shift in MgOLiNbO3 single crystal by nonlinear ellipsometric method Optics Communications 164 1999. 77–82 |
| Spectroscopic investigation of Nd3+ ion in LiNbO3, MgOLiNbO3 and LiTaO3 single crystals relevant for laser applications Optical Materials 6 (1996) 313-330 |
| Temperature-tunable nanosecond optical parametric oscillator based on periodically poled MgOLiNbO3 Optics & Laser Technology 38 (2006) 192–195 |
| High repetition rate mid-infrared generation with singly resonant optical parametric oscillator using multi-grating periodically poled MgOLiNbO3 Optics &LaserTechnology42(2010)18–22 |
| Effect of dopant concentration on the spectra characteristic in Zr4+ doped YbNdLiNbO3 crystals JOURNAL OF RARE EARTHS, Vol. 35, No. 8, Aug. 2017, P. 761 |
| Infrared absorption study of OH? in MgOLiNbO3 doped with Cr and Nd Physics Letters A 205 (1995) 112-116 |
| Efficient second-harmonic generation from polarized thulium-doped fiber laser with periodically poled MgOLiNbO3 Optics &LaserTechnology69(2015)60–64 |
| Pressure-induced effects on the spectroscopic properties of Nd3+ in MgOLiNbO3 single crystal. A crystal field approach Journal ofLuminescence184(2017)293–303 |
MgO:LiNbO3 crystals crylink have supplied
| Product | Size (mm) | Angle | Orientation |
| MgO LiNbO3 Crystal | 5x5x20 | θ=42.90°，φ=0 | |
| 5x5x20 | θ=64.2°，φ=0 | ||
| 6X6X(4,5,6) | θ=43° | ||
| 10x10x2 | |||
| 10x10x5 | θ=43°，φ=0 | XZ plane, Type Ⅰ |
Size:10*10*5mm
Orientation: XZ plane, Type Ⅰ
θ=43°，φ=0°
Size: 5*5*20mm
θ=42.9°,φ=0°
/ θ=64.2°,φ=0°
Size:10*10*2mm
Size:6*6*6mm
θ=43°
Size:6*6*4mm
θ=43°
Size:6*6*5mm
θ=43°
Parameter
- |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
| Polishing Specification for Laser Grade Ⅰ | |
| Orientation Tolerence | ＜0.5° |
| Thickness/Diameter Tolerance | ±0.1 mm |
| Surface Flatness | ＜λ/8@632nm |
| Wavefront Distortion | ＜λ/4@632nm |
| Surface Quality | 20/10 |
| Parallel | 30〞 |
| Perpendicular | 15ˊ |
| Clear Aperture | ＞90% |
| Chamfer | ＜0.2×45° |
| Polishing Specification for Laser Grade Ⅱ | |
| Orientation Tolerence | ＜0.2° |
| Thickness/Diameter Tolerance | ±0.02 mm |
| Surface Flatness | λ/10 @632nm |
| Wavefront Distortion | ＜λ/8 @632nm |
| Surface Quality | 10/5 |
| Parallel | 10〞 |
| Perpendicular | 5ˊ |
| Clear Aperture | ＞90% |
| Chamfer | ＜ 0.2×45° |
| 355nm | 406nm | 532nm | 633nm | 1064nm | ||
| Lithium Niobate | 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 | 2.33080 | 2.23940 | 2.20607 | 2.15884 | |
| Magnesium Doped Lithium Niobate | 25°C | 2.38482 | 2.31248 | 2.22530 | 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 |
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| Absorption Spectra of LiNbO3 and LiNbO3： MgO (7 mol.%) crystals in the region of absorption edge. | Transmission spectra of a undoped and MgO doped LN crystals. |
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| Angular dependence of SHG intensity in LiNbO3:MgO(7 mol.%) crystal with a I-type phase matching (oo-e) | Thermo-optic constants at 25 °C in the ordinary and extraordinary waves of MgO:LiNbO3 |
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