Opt⚙City ® - Quality Crystal & Optical Components

Home ♘MyCart Contact Login
Wed May 17 2017
♤Products > NLO Crystals >> LiNbO3 Crystal

LiNbO3 MgO:LiNbO3 LiTaO3 Crystals

Lithium niobate (LiNbO3) crystal is used as frequency doublers for wavelength > 1 μm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices, E-O modulator (EOM) and A-O modulator(AOM) due to LiNbO3 Crystal's large Electro-Optic (E-O) and Acousto-Optic (A-O) coefficients.

LiNbO3 Crystal

LiNbO3 Basic Properties

Crystal Structure: Trigonal, space group R 3c
Cell Parameters: a = 0.515, c = 13.863, Z = 6
Melting Point: 1255 +/-5°C
Curie Point: 1140 +/-5°C
Mohs Hardness: 5
Density: 4.64 g/cm^3
Absorption Coefficient: ~ 0.1%/cm @ 1064 nm
Solubility: insoluble in water
Relative Dielectric Constant: ε110: 85, ε330: 29.5
Thermal Expansion Coefficients: //a 2.0 x 10E-6 /K , //c 2.2 x 10E-6 /K@ 25°C
Thermal Conductivity 38 W /m /K @ 25°C

MgO:LiNbO3 Crystal

Compared with LiNbO3 crystal, MgO:LiNbO3 crystal exhibits particular advantages for NCPM frequency doubling (SHG) of Nd:Lasers, mixing (SFG) and optical parametric oscillators (OPOs). The SHG efficiencies of over 65% for pulsed Nd:YAG lasers and 45% for CW Nd:YAG lasers have been achieved in MgO:LiNbO3 Crystals respectively. MgO:LiNbO3 is also good for optical parametric oscillators(OPOs) and amplifiers (OPAs), quasi-phase-matched doublers and integrated waveguides

MgO:LiNbO3 Features:

- High damage threshold
- Noncritical phase matching-NCPM at room temperature
- Broad transparency range
- Excellent E-O and NLO properties
- Good mechanical and chemical properties

MgO:LiNbO3 has similar effective nonlinear coefficients to pure LiNbO3. MgO:LiNbO3 crystal Sellmeier equations (for 5mo1% MgO dopant, λ in µm):
no² = 4.8762 + 0.11554 / ( λ2 - 0.04674 ) - 0.033119 λ2
ne² = 4.5469 + 0.094779 / ( λ2 - 0.04439 ) - 0.026721 λ2

Periodically poled lithium niobate (PPLN) is developed for quasi phase matching of the LiNbO3 crystal. PPLN expanped the functionality of LiNbO3 as OPO and SHG applications. To get stable operation, PPLN is usually put inside a crystal oven with temperature controller, because the inverted (poled) portions of the crystal is sensitive to the temperature changing.

LiNbO3 MgO:LiNbO3 LiTaO3 Crystal Specifications

Dimension Tolerance: +0/-0.1mm(WxH) and+0.1/-0.2mm thickness
Surface Quality: 10-5 Scratch-dig
Flatness: < λ/8 @633nm
Chamfer: 0.1mm@45deg.
Clear Aperture: Central 90% of Diameter
Parallelism: <10 arc seconds
Perpendicular: <10 arc minutes
Orientation Angle: +/-0.25deg.
AR coating: R<0.2%

OptoCity offer LiNbO3, LiTaO3, MgO:LiNbO3 crystal as wafer, waveguide, NLO, E-O components and more. Please send us an email to request for for quote.

LiNbO3 crystal

LiNbO3 Crystal Order Information


1. MgO:LiNbO3

5% MgO:LiNbO3, 5x5x0.5mm SHG@3000 nm AR/AR


5% MgO:LiNbO3, 5x5x1mm SFG@800 nm+3500 nm AR/AR


LiNbO3 9x9x25 mm, Z-cut, Electrode & AR coating


Additional message: qty. wavelength, holder...


LiNbO3 Crystal Inquiry

Your E-mail: Subject: Message with contact information: Enter webcode: 1332 - Thank you! We'll reply very soon.

English 中文 Português Deutscheрусскийعربى Españolfrançais日本語

  1. NLO Crystals BBO LBO BiBO KDP KTP KTA LiNbO3 AgGaS2 RTP Pockels Cells Crystal Oven
  2. Category Laser Crystal NLO Crystal Optic Crystal Polarizer Waveplate Beamsplitter Windows Mirrors Filters Prisms Lenses More Products

Your Email: Share to Friends: email or mobile Commend: