POCKELS-DKDP-37x20, Electro-Optic Pockels Cell, DKDP Crystal, 20 mm Clear Aperture
Pockels cells utilizing DKDP crystals are among the most popular choices on the market.
Deuterated potassium dihydrogen phosphate (DKDP) provides excellent transmission from 390 nm to 1400 nm (0.39 μm – 1.4 μm), and its high electro-optical coefficients make it ideal for Pockels cell applications.
To achieve an effective electro-optical response, highly deuterated DKDP (D > 97% – 98%) is essential. The high laser-induced damage threshold is ensured by applying specialized anti-reflective coatings on this hygroscopic crystal.
The 3photon standard DKDP Pockels cells feature a longitudinal electro-optic modulation configuration.
With no enter-exit windows, 3photon Pockels cells minimize light losses. These cells are lightweight, well-protected with durable anti-reflection coatings, and designed for easy installation.
Clear
aperture: Diameter 20 mm
Crystal material: D-KDP (KD*P)
Crystal length: 37 ± 2mm
Crystal ends (wedge angle): both ends wedged at 2 deg and parallel
Protective windows on both ends: Yes
AR coating: Both on crystal & protecting windows over wavelength range
730-870 nm or wider
Transmission over 730-870 nm wavelength: > 95 %
Damage threshold of dielectric AR coatings: > 0.5 GW/cm2 (> 5 J/cm2), @
1064 nm, 10 Hz, 10 ns
Quarter wave Voltage @ 800 nm: <2.7 kV DC
Contrast ratio in crossed polarizers: ≥ 1:2000 (No Voltage is applied)
Capacitance: ≤ 20 pf
HV connector Type: 2 mm removable banana pins
Separation between HV electrodes/connections: 18±2 mm
Overall, Cell Diameter: ≤ 45 mm
Overall, Cell Length: ≤ 52 mm
Aperture centre distance from mounting base: 21.6±0.1 mm
Base Mounting Thread: 2 X M3 with 25.4 mm separation
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