- LN has large Eletcro-Optic and Acousto-Optic coefficients, is the most commonly used material for Pockel Cells switch and phase modulator, waveguide substrate, and surface acoustic wave wafers, etc.
The following table list the specifications of a typical LiNbO3 crystal used as Q-switch with transverse E-O modulation. The light propagates in z-axis and electric field applies to x-axis. The electro-optic coefficients of LiNbO3 are: r33 = 32 pm/V, r31 = 10 pm/V, r22 = 6.8 pm/V at low frequency and r33 = 31 pm/V, r31 = 8.6 pm/V, r22 = 3.4 pm/V at high electric frequency. The half–wave voltage: Vπ=λd/no3γcl, γc=(ne/no)3γ33-γ13.
LiNbO3 Q-Switch Specifications
LiNbO3 is also a good acousto-optic crystal and used for surface acoustic wave (SAW) wafer and A-O modulators. CASTECH provides acoustic (SAW) grade LiNbO3 crystals in wafers, as-cut boules, finished components and custom fabricated elements.
Typical SAW Properties
CASTECH can offer other sizes and specifications of wafers upon request.
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