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LN Pockels Cell
• Various sizes of finished components for different applications.
• High quality LiNbO3 crystal developed in-house.
• MgO doped LiNbO3 available for high power systems.
• Strict quality control.
• Very competitive price.
• Free technical support always.
• Fast delivery - directly from our factory via UPS, DHL, or FedEx.
LiNbO3 (Lithium Niobate, LN) crystal is a multifunctional material that integrates properties of piezoelectric, ferroelectric, pyroelectric, nonlinear, electro-optical, photoelastic, etc. LiNbO3 has good thermal stability and chemical stability.
Among the EO crystals, LN and DKDP are the two primary material that have been practical. DKDP crystals can be easily grown with a high optical homogeneity, which can satisfy the requirement of a large caliber Pockels cell. However, DKDP is water soluble and must be carefully protected from moisture, which complicates its fabrication and application. Additionally, the refractive index-matching fluid will disable DKDP Pockels cell at low temperature. However, a well-known requirement forPockels cell is to operate in a wide temperature range, especially for military applications. Fortunately, LN crystals are nonhygroscopic, and they possess a low absorption coefficient and insert loss. In addition, they can operate stably in a wide temperature range, which makes LN crystals the main EO crystal applied in military applications.
LN Pockels cells can be very compact, and the half-wave voltage can be very low. By doping MgO in LiNbO3, the damage threshold of LN Pockels cells can been increased dramatically.
WISOPTIC Standard Specifications* - LiNbO3 Pockels Cell
Dimensions | (2×2~9×9)×25 mm | |
Dimension Tolerance | ± 0.1 mm | |
Angle Tolerance | ± 0.5° | |
Flatness | < λ/8 @ 632.8 nm | |
Surface Quality | < 20/10 [S/D] | |
Parallelism | < 20” | |
Perpendicularity | ≤ 5' | |
Chamfer | ≤ 0.2mm @ 45° | |
Transmitted Wavefront Distortion | < λ/4 @ 632.8 nm | |
Capacitance | 20 pF | |
Electrodes | Gold | |
λ/4 Voltage | ~1.5 kV (@ 1064 nm) | |
Dynamic Extinction Ratio | 20 dB (@ 1064 nm) | |
Clear Aperture | 8.5 mm (> 90% central area) | |
Coating | AR coating: R < 0.2% @ 1064 nm, R < 0.5% @ 532 nm | |
Laser Damage Threshold | LN | 100 MW/cm2 @ 10ns, 10Hz, 1064nm |
MgO : LN | 150 MW/cm2 @ 10ns, 10Hz, 1064nm | |
