Products

LBO Crystals
  • Stocked and custom lithium triborate (LBO) crystals are available
  • Wide bandwidth for Type I and Type II non-critical phase-matching (NCPM)
  • Large effective SHG coefficient
  • High damage threshold (>10GW/cm^2  for 1064nm, TEM00, 10ns, 10HZ)
  • Maximum size: 70x70x20mm
  • Thin LBO crystals for femto-line lasers are also available (standard thickness 1-4mm)
  • Inquire Us  
    CodeSizeLengthθφCoatingApplicationUnit PriceDeliveryCart
    20205-0012x2mm10mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0023x3mm10mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0033x3mm15mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0044x4mm10mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0054x4mm15mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0064x4mm20mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0075x5mm10mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0085x5mm15mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0095x5mm20mm90°11.4°AR/AR@1064+532nmSHG@1064nm, Type1flash sale4 weeks
    20205-0103x3mm10mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0113x3mm15mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0124x4mm10mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0134x4mm15mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0144x4mm20mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0155x5mm10mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0165x5mm15mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks
    20205-0175x5mm20mm90°AR/AR@1064+532nmNCPM SHG@1064 T=149℃flash sale4 weeks

    Lithium Triborate (LBO, or LiB3O5) Crystal is one of the most useful nonlinear optical materials, not just because of its large conversion coefficients (which are 3 times larger than that of KDP), but also its high damage threshold (which is the highest among the inorganic nonlinear crystals), wide angular bandwidth and small walk-off angle. LBO crystal has a broad optical transmission range from 160 to 2600nm, making them appropriate for high-power military/medical Nd:YAG/Nd:YLF lasers, Ti: Saphhire and Cr:liSAF lasers, etc. lt excels in high-power SHG with minimal thermal lensing effect compared to KTP. In addition, LBO crystal also boasts a broad wavelength range where non-critical phase matching (NCPM) can be achieved at room temperature.

    Shanghai Shalom offers both stocked and custom lithium Triborate (LBO crystals) for THG and SHG of Nd-doped laser, Type l and Type ll non-critical phasematching, and 0PO/0PA. The crystal features great optical homogeneity and few stress stria. The damage thresholds of our LBO crystal are impressive, which has a high altitude of >10GW/cm^2 for 1064nm, TEM00, 10ns, and 10HZ (with no coating), The surface quality could be elevated to 10/5 Scratch/Dig.

    Following AR coatings are available:

    1. Dual-band AR-coating of LBO for SHG of Nd:YAG lasers, with the following features:
      Low reflectance( < 0.1% at 1064nm and < 0.25% at 532nm)
      High damage threshold( > 500 MW/cm2 at both wavelengths)
      Long live

    2. Broad Band AR-coating for frequency doubling Ti:Sapphire laser

    3. Other coatings are available upon request

    Specifications:

    MaterialLBO crystalsClear Aperturecentral 80% of the diameter
    DimensionMaximum Dimension 70x70x20mmTransmitting Wavefront Distortionbetter than λ/8 @ 633nm
    Flatnessλ/8 @ 633nmSurface QualitySurface Quality: 10/5 S/D (MIL-O-13830A)
    Parallelismbetter than 20 arc secondsPerpendicularity15 arc minutes
    Damage Threshold (GW/cm^2)>10 for 1064nm, TEM00, 10ns, 10HZ (with no coating)
    >1 for 1064nm, TEM00, 10ns, 10HZ (AR-coated)
    >0.5 for 532nm,   TEM00, 10ns, 10HZ (AR-coated)
    Quality Warranty Periodone year