Go back


LN (Lithium Niobate) crystal is one of the most thoroughly characterized nonlinear optical materials and suitable for a variety of frequency conversion applications. For example, it is widely used as frequency doublers for wavelength >1μm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices. Due to its large E-O and A-O coefficients, LiNbO3 crystal is commonly used for Pockels cells, Q-switches, phase modulators, waveguide substrate, and surface acoustic wave wafers, etc.
MgO doped LN (typical doping: 5%) is developed to reduce the photorefractive effect of the intrinsic material and therefore can be used for higher energy applications.

Technical Data [LN / MgO:LN]
Standard Doping Ratio MgO% = 5%
Dimension Tolerance ± 0.1 mm
Angle Tolerance < ± 0.5°
Flatness < λ/8 @ 633 nm
Surface Quality < 20/10 [S/D]
Parallelism < 20”
Perpendicularity ≤ 5'
Wavefront Distortion < λ/4 @ 633 nm
Clear Aperture > 90% central area
Coating AR-coating: @ 1064nm(R<0.2%); @ 532nm(R<0.5%)
Laser Damage Threshold > 100 MW/cm2 for 1064nm, 10ns, 10Hz (uncoated)