DKDP-Pockels cells

DKDP Pockels cells from 3Photon are high-performance electro-optic devices designed for fast, precise control of laser polarization in high-power and high-energy laser systems

3Photon’s DKDP (Deuterated Potassium Dihydrogen Phosphate) Pockels cells are engineered for demanding laser applications where high optical damage threshold, large aperture capability, and excellent electro-optic performance are critical. Leveraging the intrinsic advantages of DKDP crystals, these Pockels cells provide reliable, repeatable polarization switching and modulation, even in extreme operating conditions.

DKDP is widely regarded as the material of choice for high-energy pulsed lasers, thanks to its low absorption at common laser wavelengths and its ability to scale to large crystal apertures. 3Photon combines high-quality DKDP crystal growth with precision optical fabrication and robust mechanical design, resulting in devices optimized for both laboratory and industrial laser platforms.

Key advantages of 3Photon DKDP Pockels cells include:

  • High laser damage threshold
    Ideal for Q-switching and pulse picking in high-energy and high-peak-power laser systems.
  • Large clear aperture options
    Supports high-energy beam diameters without compromising beam quality.
  • Fast electro-optic response
    Enables nanosecond-scale switching for precise temporal control of laser pulses.
  • Broad wavelength compatibility
    Suitable for many solid-state laser sources, including Nd:YAG and related harmonics.
  • Stable and reliable operation
    Designed for long-term use in research, defense, industrial, and scientific laser installations.

These Pockels cells are commonly used in Q-switches, regenerative amplifiers, pulse slicers, and optical isolator systems, where accurate polarization control directly impacts laser efficiency and system stability. Compared to alternative electro-optic materials, DKDP offers a unique balance of scalability, optical robustness, and cost-effectiveness for high-energy applications.

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Evermind™ template is crafted like sustainable structures — clean, scalable, and built to last.
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3photon (three-photon) specializes in the design and commerce of laser and non-linear crystals, as well as optical components, while also operating advanced optical coatings and polishing facilities.
What is a DKDP-Pockels cell?

It’s an electro-optic device that uses a deuterated potassium dihydrogen phosphate (DKDP) crystal to rapidly modulate or switch a laser beam’s polarization with an applied voltage.

What does the DKDP crystal do?

The DKDP crystal exhibits the Pockels effect: its refractive index changes when voltage is applied, letting the cell act as a fast optical switch or waveplate

What are common uses?

DKDP-based cells are used for Q-switching, beam chopping, pulse picking, and intensity/phase modulation in laser systems

What’s the typical switching speed?

DKDP cells respond extremely fast - often nanoseconds or better - limited mainly by the driver electronics

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