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LiNbO3 is a ferroelectric material with variety of applications.
A great variety of devices has been developed based upon this material having unique electro-optical, photoelastic, piezo-electric and non-linear properties combined with good mechanical and chemical stability and wide transparency range. For instance, in optical modulation and Q-switching large electro-optic coefficients of lithium niobate infrared wavelengths is used. By-turn, the large nonlinear (d) coefficient of LiNbO3 allows very successfully use this material in optical parametric oscillaton and difference frequency mixing to generate tunable infrared wavelengths and second harmonic.
It is widely used as frequency doublers for wavelength over 1 micron and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices.
LiNbO3 is also one of the most attractive materials for optoelectronics. A great variety of devices has been developed based upon this material having unique electro-optical, photoelastic, piezo-electric and non-linear properties combined with good mechanical and chemical stability and wide transparency range.
SAW Grade Crystal
SAW grade LN, LT crystals are the featured products of Beijing Scitlion Technology. Variation of SAW propagation velocity may arise from the fluctuation of crystal components, uncompleted crystal poling and crystal defects. So, to ensure the SAW propagation velocity consistent and to meet customer's higher and higher requirement on crystal quality, such strict measures as quality and precise component ratio control of Nb2O5 and Li2CO3 raw materials, curie temperature measurement, defects inspection as well as optimized crystal growth and poling process, are taken.
Applications: SAW Devices
Characteristics of optical grade LiNbO3 crystal:
1,crystal structure: trigonal system
2,space groups:C36(R3C)
3,melting point: 1260ºC
4,Moh's hardness:~4.8
5,density:4.46g/cm3
6,coefficient of thermal expansion: 16.7(∥a) 2(∥a)
7,Optical transparency range:370~5000nm
8,refractive index:(633nm)n0=2.286 ne=2.200
9,refractive index gradient:(633nm)≤5×10-5
10,light transmission:(633nm)≥68%
11,orientation:X±0.1°
12,size:Φ2-4''×40~80mm
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Crystal Categories |
LiNbO3 Crystal |
LiTaO3 Crystal |
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Crystal Orientation |
X,Y,Z,36°Y, 41°Y, 45°Y, 64°Y, 128°Y, 135°Y, |
Z,36°Y, 42°Y, X-112°Y, |
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Orientation Fluctuation |
±0.1° |
±0.1° |
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Diameter |
100.0±0.5mm 76.2±0.5mm |
100.0±0.5mm 76.2±0.5mm |
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Thickness |
50~150mm |
50~150mm |
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Curie Temperature |
1142±3°C |
605±3°C |
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Orientation of First Refer Flat |
±0.2°C |
±0.2°C |
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First Refer Flat |
32±2mm(4″) 22±2mm(3″) |
32±2mm(4″) 22±2mm(3″) |
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Second Refer Flat |
12±3mm(4″) 10±3mm(3″) |
12±3mm(4″) 10±3mm(3″) |
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Quality |
Free of crack, bubbles and inclusions |
Free of crack, bubbles and inclusions |
Product Pictures:
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