4HG@1064nm β-BBO Crystals

Beta Barium Borate (BBO) crystals are nonlinear optical crystals that combine many unique properties: wide transparent region, wide phase matching range, large nonlinear coefficient, high damage threshold. We offer BBO crystals as thin as 5 µm thick with AR, BBAR, P coating options.

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Catalog Number

ACMA00027337

Product Name

4HG@1064nm β-BBO Crystals

Molecular Formula

β-BaB2O4

Melting Point

1095±5℃

Width

7 mm

Height

7 mm

Length

6 mm

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Theta(Θ)

47.6°

Phi(Φ)

90°

Coating

P/P@532/266 nm

Flatness

λ/8 @ 633 nm

Parallelism

< 20 arcsec

Perpendicularity

< 5 arcmin

Angle Tolerance

< 30 arcmin

ApertureTolerance

± 0.1 mm

Surface Quality

10/5 scratch & dig

ClearAperture

90% of full aperture

Crystal Structure

trigonal, 3m

Lattice Parameters

a=b=12.532Å, c=12.717Å, Z=6

Optical Symmetry

Negative Uniaxial

Space Group

R3c

Density

3.85 g/cm³

Optical Homogeneity

∂n = 10^-6 cm^-1

Transparency Region

(at “0” transmittance level) 189~3500 nm

Absorption Coefficient

<0.1%/cm (at 1064 nm)

Refractive Indices

at 1064 nm, n_o=1.6551, n_e=1.5426 at 532 nm, n_o=1.6750, n_e=1.5555 at 355 nm, n_o=1.7055, n_e=1.5775 at 266 nm, n_o=1.7571, n_e=1.6139 at 213 nm, n_o=1.8465, n_e=1.6742

Phase Matching Range

Type 1 SHG, 410~3300 nm Type 2 SHG, 530~3300 nm

Walk Off Angle

55.9 mrad (Type 1 SHG 1064 nm)

Angular Acceptance

1.2 mrad × cm (Type 1 SHG 1064 nm)

Thermal Acceptance

70 K × cm (Type 1 SHG 1064 nm)

NLO Coefficients

d22 = ± 2.2 pm/V, d15 = d31 = ± 0.08 pm/V

Effective NLO Expressions

dooe = d31 sinθ – d22 cosθ sin3φ, deoe = doee = d22 cos2θ cos3φ

Expansion Coefficient

(Thermal expansion coefficient) (for TEM00 1064 nm) > 0.5 GW/cm² at 10 ns, ~ 50 GW/cm² at 1 ps

Damage Threshold

α11 = 4 × 10^-6K^-1, α33 = 36 × 10^-6K^-1

Sellmeier Equations

no2=2.7366122+0.0185720/(λ2-0.0178746)-0.0143756 λ2 (λ, μm) ne2 =2.3698703+0.0128445/(λ2-0.0153064)-0.0029129 λ2 (λ, μm)

Phase Transition Point

925±5℃

Optical Uniformity

10^-6/cm

Deliquescence

Low

Resistivity

>1011 ohm/cm

Electro Optic Coefficient

g¹¹=2.7 pm/V, g²², g³¹ <0.1 g¹¹

Half Wave Voltage

48 KV (at 1064nm)

Moh'sHardness

5

MSDS

COA

Spec Sheet

Features And Benefits

Beta BBO crystal is a nonlinear optical crystal with the following unique characteristics: wide transparent region, wide phase matching range, large nonlinear coefficient, high damage threshold, wide thermal acceptance bandwidth, high optical uniformity.

Application

1. Two, three, four and five frequency doubling of Nd:YAG and Nd:YLF lasers 2. Frequency doubling, tripling and mixing of dye lasers 3. Frequency doubling, doubling and quadrupling of Ti:Sapphire and Alexandrite lasers 4. Optical Parametric Amplifier (OPA) and Optical Parametric Oscillator (OPO) 5. Frequency Doubling of Argon Ion, Ruby and Copper Vapor Lasers 6. All-solid-state tunable lasers, ultrafast pulsed lasers, deep ultraviolet lasers and other laser technology fields

• Catalog Number: ACMA00027337
• Product Name: 4HG@1064nm β-BBO Crystals
• Molecular Formula: β-BaB2O4
• Melting Point: 1095±5℃
• Width: 7 mm
• Height: 7 mm
• Length: 6 mm
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Theta(Θ): 47.6°
• Phi(Φ): 90°
• Coating: P/P@532/266 nm
• Flatness: λ/8 @ 633 nm
• Parallelism: < 20 arcsec
• Perpendicularity: < 5 arcmin
• Angle Tolerance: < 30 arcmin
• ApertureTolerance: ± 0.1 mm
• Surface Quality: 10/5 scratch & dig
• ClearAperture: 90% of full aperture
• Crystal Structure: trigonal, 3m
• Lattice Parameters: a=b=12.532Å, c=12.717Å, Z=6
• Optical Symmetry: Negative Uniaxial
• Space Group: R3c
• Density: 3.85 g/cm³
• Optical Homogeneity: ∂n = 10^-6 cm^-1
• Transparency Region: (at “0” transmittance level) 189~3500 nm
• Absorption Coefficient: <0.1%/cm (at 1064 nm)
• Refractive Indices: at 1064 nm, n_o=1.6551, n_e=1.5426 at 532 nm, n_o=1.6750, n_e=1.5555 at 355 nm, n_o=1.7055, n_e=1.5775 at 266 nm, n_o=1.7571, n_e=1.6139 at 213 nm, n_o=1.8465, n_e=1.6742
• Phase Matching Range: Type 1 SHG, 410~3300 nm Type 2 SHG, 530~3300 nm
• Walk Off Angle: 55.9 mrad (Type 1 SHG 1064 nm)
• Angular Acceptance: 1.2 mrad × cm (Type 1 SHG 1064 nm)
• Thermal Acceptance: 70 K × cm (Type 1 SHG 1064 nm)
• NLO Coefficients: d22 = ± 2.2 pm/V, d15 = d31 = ± 0.08 pm/V
• Effective NLO Expressions: dooe = d31 sinθ – d22 cosθ sin3φ, deoe = doee = d22 cos2θ cos3φ
• Expansion Coefficient: (Thermal expansion coefficient) (for TEM00 1064 nm) > 0.5 GW/cm² at 10 ns, ~ 50 GW/cm² at 1 ps
• Damage Threshold: α11 = 4 × 10^-6K^-1, α33 = 36 × 10^-6K^-1
• Sellmeier Equations: no2=2.7366122+0.0185720/(λ2-0.0178746)-0.0143756 λ2 (λ, μm) ne2 =2.3698703+0.0128445/(λ2-0.0153064)-0.0029129 λ2 (λ, μm)
• Phase Transition Point: 925±5℃
• Optical Uniformity: 10^-6/cm
• Deliquescence: Low
• Resistivity: >1011 ohm/cm
• Electro Optic Coefficient: g¹¹=2.7 pm/V, g²², g³¹ <0.1 g¹¹
• Half Wave Voltage: 48 KV (at 1064nm)
• Moh'sHardness: 5