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2025-04-23

CLBO Crystals (Cesium Lithium Borate)

Shalom EO is proud to introduce Cesium Lithium Borate (CLBO) crystalsa cutting-edge nonlinear optical material engineered for UV and deep UV laser applications requiring high efficiencies.

With a wide transparency range from 180 nm to 2750 nm, CLBO crystals are ideal for harmonic generation of Nd:YAG, Ti:Sapphire, and Alexandrite lasers, supporting SHG, FHG, and even FIHG, enabling outputs at 193 nm, 266 nm, and beyond.




As a nonlinear crystal, CLBO crystals offer distinct advantages:

  • High nonlinear coefficient, nearly twice that of KDP
  • Greater spectral, angular, and temperature tolerance than BBO
  • Moderate birefringence and minimal walk-off
  • High power handling with consistent efficiency
  • Large crystal sizes available with fast turnaround


Due to the high hygroscopicity of CLBO, we process, package, and transport our CLBO crystals in low-humidity conditions to prevent deliquescence and preserve crystal quality. With advanced processing crafts and engineering skills, Shalom EO supplies high-precision custom CLBO crystals as ingots, blanks, and polished/coated crystals, with options for sealed housing or AR/protective coatings. 

We are capable of providing CLBO crystals of large sizes and tight geometric and polishing precision control, including:

  • ≤lambda/6@633nm surface flatness
  • Δθ≦0.25°, ΔФ≦0.25 ° angular tolerance
  • 10/5 S/D surface quality
  • Dimensional olerance ±0.1mm (L) x ±0.1mm (W) x +0.1mm/-0.1mm (L<2.5mm)/+0.5mm/-0.1mm (L≥2.5mm)
  • Discover more about the specifications of Shalom EO’s CLBO crystals.


Shalom EO’s CLBO crystals are ideal for applications including:

  • UV and DUV laser systems
  • Semiconductor inspection & microlithography
  • Biomedical lasers
  • UV lidar
  • Laser R&D and spectroscopy

Explore the potential of CLBO crystals with our diverse custom dimensions and orientations to match your specific system needs. Contact Shalom EO today to learn more or request a quote.