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Beta-barium borate (BBO) is a versatile nonlinear crystal ideally suited for nonlinear laser interactions. BBO crystals combine very wide transparency, moderately high nonlinear coupling, high damage threshold and good chemical and mechanical properties. BBO phase matches over a wide range, yielding SHG, SFD and OPO from 190 to 1780 nm.
Beta-barium borate (BBO) is a versatile nonlinear crystal ideally suited for nonlinear laser interactions.
BBO crystals combine very wide transparency, moderately high nonlinear coupling, high damage threshold and good chemical and mechanical properties. BBO phase matches over a wide range, yielding SHG, SFD and OPO from 190 to 1780 nm.
Advantages:
Very wide transparency range
High damage threshold
Moderately high nonlinear coefficient
High optical homogeneity
Wide temperature-bandwidth
Common Applications:
Second, third, fourth, and fifth harmonic generation of Nd:Yag lasers
Second, third, and fourth harmonic generation of Ti:Sapphire and Alexandrite lasers
SHG of Argon, Cu Vapor and Ruby lasers
OPO of UV and visible wavelengths
Electro-optics based on BBO crystals
Typical Specifications for BBO:
Aperture | Up to 15x15mm² |
Length | Up to 20mm |
Flatness | Up to λ/10 @633nm |
Perpendicularity | Up to 5arc min. |
Parallelism | Up to 5arc sec. |
Scratch/Dig | 10/5 |
AR Coatings | AR/AR, DBAR |
Absorption Coefficient | dual band R<0.2% |
Wave Front Distortion Control | < 50ppm cm-1 @1064nm |
Guaranteed Laser Induced | λ/8 @633nm |
Threshold | 1GW/cm² @1064 nm |
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