LiNbO3&MgO:LiNbO3 Pockels Cells

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LN (LiNbO3) Pockels Cells, also known as lithium niobate pockets cells, are a comprehensive and excellent pockels cells. The device is widely used in optical communication and optical waveguide technology. The product has the advantages of high electro-optical coefficient, non-hygroscopicity, a wide range of transparency, and good mechanical and physical properties, which can be applied in electro-optical modulators and modulation of laser beams outside the wave voltage of resonators. Lithium niobate crystals are among the most commonly used materials for Q-switches and phase modulators due to their high electro-optical coefficient, non-hygroscopicity, good transmission up to 4.0 μm, and transverse mode operation. LiNbO3 pockels cells can be configured to operate at lower voltages than KD*P cells by applying an electric field laterally in the direction of light propagation. LiNbO3 pockels cells can support IR wavelength operation up to 4.0 μm and are also a good choice for low to medium power solid-state laser (Er: YAG, Ho: YAG, Tm: YAG pulsed lasers) applications. Also, LiNbO3 with MgO doping has a significantly higher damage threshold compared to conventional undoped LiNbO3.

Features of LN (LiNbO3) Pockels Cells:

  • Low loss
  • High electro-optical coefficient
  • Wide range of transparency
  • Low wavefront distortion
  • High temperature stability
  • Stable mechanical and chemical properties

Standard

MgO:LN crystal switch

Product Model CLMGO-S0920-3026 CLMGO-S0620-2533 CLMGO-S0920-181720-S
Clear Aperture
(mm)		 9mm 6mm 9mm
Crystal Size(mm) 9 x 9 x 20 mm3  6 x 6 x 20mm3  9 x 9 x 20 mm3 
Shell Size (mm) Dia.30×26 mm Dia.25×33 mm 18 x 17 x 20 mm
Quarter Wave Voltage (@
1064 nm), kV DC		 1.9kV 1.4kV 1.9kV
Capacitor, pF 14pF 14pF 14pF
Transmittance >99% >99% >99%
Wavelength Range 1064nm 1064nm 1064nm
Damage Threshold,
10ns 10Hz 1064nm		 200 MW/cm2  200 MW/cm2 200 MW/cm2
Extinction Ratio 300:1 300:1 300:1
Electrode Method Cylindrical pin Cylindrical
pin
electrode		 Square case pin electrode

Pockels Cell Specifications

Clear Aperture
Min：5×5mm，Max：20×20mm
Length～60mm
Flatness<λ/8 @633nm
Wavefront Distortion
<λ/4 @633nm
Parallelism
<20“
Perpendicularity
<5”
Surface Finish
20/10
Wavelength Band300-3000nm

Pockels Cell Product Parameters

Clear Aperture
2.5mm5mm8mm9mm
Shell Sizeφ20×66mmφ25.4×36mmφ30/32×26/30mmφ31/32×26mm
λ/4 Voltage400V λ/2 @633nm800V λ/2 @633nm1800V-1900V λ/4 @1064nm2100V λ/4 @1064nm
Transmittance
>98%>98%>98%>98%
Insertion Loss0.030.030.030.03
Flatness
<λ/8 @633nm<λ/8 @633nm<λ/8 @633nm<λ/8 @633nm
Extinction Ratio（5mm）200:1 200:1200:1200:1
Capacitance 5pF5pF5pF5pF
Damage Threshold
100MW/cm2 @1064nm 10ns 10Hz(LN)
300MW/cm2 @1064nm 10ns 10Hz(MgO:LN)

Structure Diagram

LN Pockels Cells Structure Diagram CRYLINK

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