Compared with LiNbO3 crystal, 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 by 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.

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MgO:LiNbO3 is characterized by:

      ?   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 coefficient to pure LiNbO3. Its Sellmeier equations (for 5mol% MgO dopant) are  (λ in μm):

                                            no2 (λ)=4.8762+0.11554/(λ2-0.04674)-0.033119λ2


Different dimensions of MgO:LiNbO3 with high quality are available from CASTECH. The AR coating is available upon request.


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