MgO: LiNbO3 is an recently developed crystal and is characterized by: high damage threshold, noncritical phase matching (NCPM) at room temperature, excellent E-O and NLO properties, good mechanical and chemical properties. At room temperature, MgO: LiNdO3 can achieved angle tuning SHG of Nd:YAG and Nd:YLF laser.

Compared with LiNbO3 crystal, MgO:LiNbO3 crystals have similar electro-optic properties to LiNbO3 but with higher damage threshold. MgO:LiNbO3 crystal exhibits its 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 a good crystal for optical parametric oscillators (OPOs) and amplifiers (OPAs), quasi-phase-matched doublers and integrated waveguide.

MgO:LiNbO3 has similar effective nonlinear coefficients to pure LiNbO3. Its Sellmeier equations (for MgO dopant 7 mol%) are:

 n2o (λ) = 4.8762+0.11554/(λ- 0.04674) - 0.033119 x λ(λ in mm)

n2e (λ) = 4.5469+0.094779/(λ- 0.04439) - 0.026721 x λ2


Dream Lasers provides high quality MgO:LiNbO3 crystals for various nonlinear optics (NLO) and E-O applications. The typical size of MgO:LiNbO3 crystals is (3 - 10) x (3 - 10) x (10 - 30) mm3 for OPOs & OPAs and frequency doubling & mixing, and 20x20x1mm3 for waveguide substrates. Other specs. and AR-coatings for MgO:LiNbO3 are available upon request.