Nonlinear optical crystal BBO (BETA-BAB2O4)

bBO

BBO4

Main Properties

Compound  β-BaB2O4
Transparency range, µm 0.189 - 2.6
Nonlinear coefficient, pm/V d22=2.2, d15=0.16
Symmetry Trigonal, 3m point group
Cell parameters, Å a=12.519, c=12.723

Typical

Reflection

index

 

1064 nm

532 nm

 

no=1.5980, ne=1.5432

no=1.6139, ne=1.5555

Optical

Damage

Threshold, GW/cm2

 

1064 nm

(t=10ns)

 

 

1-2

Cut off SHG Type I
Type II
411 nm
527 nm
Walk off angle, ° Type I, 1064 nm 3.2
Temperature acceptance, °C*cm Type I 1064 nm 55
Mohs hardness 4.5

The parameters of optical elemets

Orientation accuracy, arc min < 30
Parallelism, arc sec < 30
Flatness 546 nm λ/6
Surface quality, scratch/dig 10/5

Application

  • Harmonic Generation (SHG, THG, 4HG, 5HG) of YAG, SHG of Ti: Sapphire and Alexandrite lasers.
  • Tunable solid-state lasers using OPO (pumped by 355, 532 or 1064 nm)
  • Efficient UV sources using SHG and SFG of the tunable dye lasers
  • Autocorrelators (in thin crystals) in picosecond and femtosecond laser systems.

We are able to provide suitable Anti-reflection / Protective, etc. coatings tailored to customer's specifications, reflectivity curves are applied upon request.

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