TX Pockels Cells
The largest Pockels cell in our repertoire, the TX series has an active aperture up to 99 mm and operates in the 300–1300 nm wavelength range at repetition rates up to 1 kHz.
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Deuterated Potassium Dihydrogen Phosphate Crystals (DKDP)
G&H Deuterated Potassium Dihydrogen Phosphate (DKDP) crystals are engineered for superior performance in high-power laser systems.
Full Product DescriptionProduct description
The KD*P family exhibits strong electro-optic coefficients and broad transparency. DKDP is a deuterated analog of KDP offering improved performance in high-energy and high-power laser systems, particularly where low absorption and high LIDT are essential. Its deuteration increases its transparency in the near-IR, making it ideal for use in Pockels cells, harmonic generators, and large-aperture EO applications. G&H offers both raw DKDP crystals and engineered components.
By replacing hydrogen with deuterium, DKDP exhibits reduced absorption and improved thermal stability, making it highly suitable for electro-optic modulation and nonlinear frequency conversion. These crystals are commonly used in Pockels cells for Q-switching, as well as in second and third harmonic generation, particularly in Nd:YAG and other high-intensity laser systems. G&H provides precision-grown DKDP crystals with customizable deuteration levels and high optical quality, supporting both scientific and industrial laser applications.
We offer 99% deuteration rather than the industry standard of 95%.
Key features
- High-purity deuterated material grown in-house
- Extremely low absorption and high LIDT
- Wavefront error λ/10 or better at 633 nm
- Custom cut, polish, and coating services
- XTP-compatible thin crystal assemblies
- G&H offers 99% deuteration rather than the industry standard of 95%.
- Crystal boules available
Related Products
- XTP Series – Thin Crystal Assemblies for DKDP
- SolGel AR coating for high transmission
- OEM and research-grade Pockels cell blanks
Specifications
| Name | Value |
|---|---|
| Crystal Type | Deuterated Potassium Dihydrogen Phosphate (DKDP) |
| Crystal Structure | Tetragonal |
| Transparency Range | 0.3 – 1.9 µm (extended IR range vs. KDP) |
| Nonlinear Coefficient | D63 ≈ 0.39 pm/V |
| Electro-optic Coefficient | R63 about = 26 pm/v |
| Crystal deuteration | Up to >98% available |
| Damage threshold | >10 GW/cm² (1064 nm, 10 ns, 1 mm diameter) |
| Available Apertures | Up to 420 mm |
Applications
- Pockels cells and EO modulators
- High-power frequency conversion
- Nd:YAG and Nd:Glass laser systems
- Large aperture harmonic generation
- Large aperture off-axis zero-order waveplates
