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Stoichiometric LN Crystal
Advantages of MgO:SLN
● Low magnetic field - suitable for high precision and high speed phase matching process
● 20%-50% higher thermal conductivity greater than normal MgO:LN
● High photorefractive damage threshold
Compared with congruent LN (cLN) crysal, the electro-optic coefficient, nonlinear optical coefficient, periodic polarization reversal voltage and applied photorefractive properties of stoichiometric LN (sLN) crystal are greatly improved. With such excellent physical properties and wide application prospects, sLN crystal has rapidly become a competitive optoelectronic material.
sLN crystals are expected to be thermodynamically stable up to their melting temperature at 1170°C, while keeping a larger
electrical resistivity than cLN crystals by one order of magnitude at any temperature. Promising bulk acoustic wave (BAW) signals were observed up to 880°C on sLN-based BAW resonators, with a stable quality factor Q up to 700°C.
Typical applications
● Periodically polarized device
● THz device
Description | Value |
Absorption edge (20 cm-1) | 303 (c=49.9) |
Birefringence index (633nm) | -0.0900 (c=50.0) |
Electro optic coefficient (pm/V) | R61=9.89 (c=49.95) |
Nonlinear coefficient (pm/V) | 17.5 (c=49.8) |
OH- absorption peak/FWHM（cm-1） | 3465.5/2.9 (c=49.9) |
Domain inversion voltage（kV/cm²） | 0.8 (c=49.9) |
Damage threshold | 100MW/cm2@532nm |
c in the table is the Li2O content of the crystal |
