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YCOB Crystals

  • Larger effective NLO susceptibilities
  • Large temperature acceptance
  • High laser induce damaging threshold
  • Very high electric resistivity
  • Less parametric luminescence (three orders less)
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Thickness Tolerance +/-0.05mm Orientation Tolerance <0.5 degree
Flatness less than λ/8 @ 633nm Transmitting Wavefront Distortion less than λ/4 @ 633nm
Chamfer ≤0.2mmx45° Chip Chip
Surface Quality better than 10/5 S/D (MIL-PRF-13830B) Parallelism ≤30 arc seconds
Perpendicularity ≤5 arc minutes Clear Aperture >90%

Yttrium calcium oxy borate(YCa4O(BO3)3,YCOB crystal)crystal was good materials for nonlinear optical and high temperature piezoelectric applications. Hangzhou Shalom EO offers the YCOB crystals grown by CZ method, with maximum diameter upto 100mm, the custom specification crystals product is available upon your request.



  • Second harmonic generation (SHG)
  • Third harmonic generation (THG)
  • Optical parametric oscillator (OPO)
  • Optical parametric amplification (OPA)
  • Optical parametric chirped-pulse amplification (OPCPA)
  • Piezoelectric devices