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LBO Crystals

  • Stocked and custom lithium triborate (LBO) crystals 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 for custom product  
Code Size Length θ φ Coating Application Unit Price Delivery Cart
20205-001 2x2mm 10mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $75 4 weeks
20205-002 3x3mm 10mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $150 4 weeks
20205-003 3x3mm 15mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $200 4 weeks
20205-004 4x4mm 10mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $305 4 weeks
20205-005 4x4mm 15mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $380 4 weeks
20205-006 4x4mm 20mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $455 4 weeks
20205-007 5x5mm 10mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $380 4 weeks
20205-008 5x5mm 15mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $470 4 weeks
20205-009 5x5mm 20mm 90° 11.4° AR/AR@1064+532nm SHG@1064nm, Type1 $575 4 weeks
20205-010 3x3mm 10mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $150 4 weeks
20205-011 3x3mm 15mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $215 4 weeks
20205-012 4x4mm 10mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $305 4 weeks
20205-013 4x4mm 15mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $380 4 weeks
20205-014 4x4mm 20mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $455 4 weeks
20205-015 5x5mm 10mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $365 4 weeks
20205-016 5x5mm 15mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $485 4 weeks
20205-017 5x5mm 20mm 90° AR/AR@1064+532nm NCPM SHG@1064 T=149℃ $605 4 weeks

Lithium Triborate (LBO, or LiB3O5) Crystal is one of the most useful nonlinear optical materials, not only because of its large conversion coefficients (which are 3 times the magnitude of 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. It excels in high-power SHG with minimal thermal lensing effect compared to KTP. 

Hangzhou Shalom offers both stocked and custom Lithium Triborate (LBO crystals) for THG and SHG of Nd-doped lasers, Type I and Type II  non-critical phase matching, and OPO/OPA. The crystals feature great optical homogeneity and very few stress stria. The damage thresholds of our LBO crystal are impressive, which give an exceptionally high altitude of >10GW/cm^2  for 1064nm, TEM00, 10ns, 10HZ (with no coating), The surface quality could be leveraged to 10/5 Scratch/Dig.

Specifications:

Material LBO crystals Clear Aperture central 80% of the diameter
Dimension Maximum Dimension 70x70x20mm Transmitting Wavefront Distortion better than λ/8 @ 633nm
Flatness λ/8 @ 633nm Surface Quality Surface Quality: 10/5 S/D (MIL-O-13830A)
Parallelism) better than 20 arc seconds Perpendicularity 15 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 Period one year
LBO 4x4x15mm for NCPM SHG@1064 T=149℃

LBO 4x4x15mm for NCPM SHG@1064 T=149℃

LBO 5x5x20mm for NCPM SHG@1064 T=149℃

LBO 5x5x20mm for NCPM SHG@1064 T=149℃

LBO 4x4x20mm for NCPM SHG@1064 T=149℃

LBO 4x4x20mm for NCPM SHG@1064 T=149℃