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XTP Nonlinear Crystal Holder product image - A circular G&H optical component with a central aperture, designed as a crystal holder. The device is constructed from a metallic material and features engraved labels around its circumference indicating alignment details such as "1064nm Input Polarization," "RTP Thin SHG," and "Return Input Polarization." The ring includes visible screws for securing the assembly and precise positioning, suggesting use in laser or photonic systems.

XTP Nonlinear Crystal Holder

The XTP precision-adjustable holders for nonlinear crystals, designed for thermal and angular stability in high-performance laser systems. Suitable for mounting crystals with clear apertures from 65mm to 300mm.

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Product description

G&H XTP Nonlinear Crystal Holders are engineered for precision alignment and stable mounting of nonlinear optical crystals used in frequency conversion applications such as SHG, OPO, and DFG. Designed to accommodate various crystal sizes and geometries, XTP holders feature fine angular adjustment for phase-matching alignment and robust thermal management for temperature-sensitive crystals. Their modular design ensures compatibility with laboratory setups and OEM integration, supporting consistent optical performance in demanding laser environments.

Each holder is manufactured with high mechanical tolerance to maintain alignment integrity under prolonged operation.

Very thin crystals minimize the effects of group velocity mismatch and group velocity dispersion in femtosecond lasers. KDP or KD*P offer the advantages of being available in very large apertures with high quality and high damage threshold. Large beam diameters reduce the likelihood of laser damage due to excessive intensity.

These mounts are suitable for harmonic generation and difference frequency mixing with ultrafast pulse lasers.

Key features

XTP Nonlinear Crystal Holders
  • Thin crystals offer short optical paths
  • Large apertures to 300 mm diameter
  • Low wavefront distortion
  • SolGel AR coatings
  • Anodized aluminum housings
  • Custom configurations available
  • Precision angular adjustment for phase matching
  • Compatible with a range of nonlinear crystals (e.g., PPLN, BBO, KTP)
  • Designed for thermal stability and optical alignment
  • Suitable for SHG, OPO, DFG, and other nonlinear applications
  • Ideal for lab use or OEM system integration
  • Robust mechanical construction for long-term stability
Model NumberAperture DiameterOutside Diameter
XTP 6565 mm101 mm
XTP 100100 mm152 mm
XTP 125125 mm186 mm
XTP 160160 mm228 mm
XTP 200200 mm254 mm
XTP 300300 mm356 mm

Specifications

NameValue
Crystal CompatibilityPPLN, BBO, KTP, and other standard nonlinear crystals
Clear aperture65mm to 300mm

Applications

  • Second Harmonic Generation (SHG) – Adjustable alignment for optimized phase matching
  • Optical Parametric Oscillators (OPOs) – Precise angular tuning for tunable wavelength generation
  • Difference Frequency Generation (DFG) – Fine control for mid-IR output alignment
  • Sum Frequency Generation (SFG) – Stable, tunable support for nonlinear mixing
  • Laser wavelength conversion systems – High-precision integration of nonlinear crystals
  • Research laboratories – Flexible alignment for experimental nonlinear optics setups
  • OEM laser systems – Modular design suitable for integration into commercial photonics platforms
  • Quantum optics and advanced photonic experiments – Where both angular accuracy and mechanical stability are critical
  • Temperature-sensitive nonlinear processes – When used with thermal control interfaces

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