Lithium Triborate – LBO Crystals
Lithium Triborate (LBO) is a nonlinear optical crystal with a combination of unique features: • Wide transparency region • Broad Type 1 and Type 2 non-critical phase-matching (NCPM) range • Small walk-off angle • High… Read more →
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- 5–9 units −5%
- 10+ units −10%
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catalog variants — refine the spec to narrow it down.
| SKU | L · Coating · φ · θ · W · H · Group | |
|---|---|---|
| LBO-0423-40 | 15·AR/AR @ 1064 + 532/355 nm·90·43.3·3·3 |
Out of stock
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| LBO-0917-02 | 30·AR/AR @ 1030 + 515 nm·90·6·6 |
Out of stock
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| LBO-0917-04 | 25·AR/AR @ 532 + 690-990 nm·90·3·3 |
Out of stock
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| LBO-0917-05 | 20·AR/AR @ 1547 + 773/1547 + 773 + 515 nm·90·3·3 |
Out of stock
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| LBO-0917-06 | 12·AR/AR @ 1064 + 532 nm·9.6·90·4·4 |
Out of stock
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| LBO-0917-07 | 15·AR/AR @ 1064 + 532 nm·10.4·90·4·4 |
Out of stock
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| LBO-0917-11 | 10·AR/AR @ 1064 + 532 nm·13.7·90·6·6 |
1 in stock
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| LBO-0917-13 | 6·AR/AR @ 1064 + 532/355 nm·90·41.5·6·6 |
Out of stock
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| LBO-0917-14 | 15·AR/AR @ 1064 + 532 + 355 nm·90·42.2·3·6 |
Out of stock
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| LBO-1118-03 | 6·AR/AR @ 1030 + 515/343 nm·90·51.9·6·6 |
Out of stock
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| LBO-1118-04 | 10·AR/AR @ 1030 + 515/343 nm·90·51.9·6·6 |
Out of stock
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| LBO-304 | 10·AR/AR @ 1064 + 532 nm·0·90·4·4·Application: NCPM SHG@1064 nm, T = 149 °C |
Out of stock
Ships in: 62–65 calendar days
$589
|
| LBO-305 | 15·AR/AR @ 1064 + 532 nm·0·90·4·4·Application: NCPM SHG@1064 nm, T = 149 °C |
Out of stock
Ships in: 62–65 calendar days
$727
|
| LBO-306 | 20·AR/AR @ 1064 + 532 nm·0·90·4·4·Application: NCPM SHG@1064 nm, T = 149 °C |
Out of stock
Ships in: 62–65 calendar days
$860
|
| LBO-307 | 10·AR/AR @ 1064 + 532/355 nm·90·42.2·4·4·Application: THG@1064 nm, Type 2 |
Out of stock
Ships in: 62–65 calendar days
$589
|
| LBO-308 | 15·AR/AR @ 1064 + 532/355 nm·90·42.2·4·4·Application: THG@1064 nm, Type 2 |
Out of stock
Ships in: 62–65 calendar days
$727
|
| LBO-501 | 10·AR/AR @ 1064 + 532 nm·11.6·90·5·5·Application: SHG@1064 nm, Type 1 |
Out of stock
Ships in: 62–65 calendar days
$756
|
| LBO-502 | 20·AR/AR @ 1064 + 532 nm·11.6·90·5·5·Application: SHG@1064 nm, Type 1 |
Out of stock
Ships in: 62–65 calendar days
$1,085
|
| LBO-507 | 10·AR/AR @ 1064 + 532/355 nm·90·42.2·5·5·Application: THG@1064 nm, Type 2 |
Out of stock
Ships in: 62–65 calendar days
$756
|
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Specifications
| Chemical formula | LiB₃O₅ |
| Crystal structure | orthorhombic, mm² |
| Optical symmetry | Negative biaxial |
| Space group | Pna2₁ |
| Density | 2.47 g / cm³ |
| Mohs hardness | 6 |
| Optical homogeneity | ∂n = 10⁻⁶ cm⁻¹ |
| Transparency region at “0” transmittance level | 155 – 3200 nm |
| Linear absorption coefficient at 1064 nm | < 0.01 % cm⁻¹ |
| Refractive indices: / at 1064 nm / at 532 nm / at 355 nm | nx ny nz / 1.5656 1.5905 1.6055 / 1.5785 1.6065 1.6212 / 1.5971 1.6275 1.6430 |
| Sellmeier equations (λ, μm) | nx² = 2.4542 + 0.01125 / (λ² – 0.01135) – 0.01388 λ² |
| ny² = 2.5390 + 0.01277 / (λ² – 0.01189) – 0.01849 λ² / + 4.3025 × 10⁻⁵λ⁴ - 2.9131 × 10⁻⁵λ⁶ | |
| nz² = 2.5865 + 0.01310 / (λ² – 0.01223) – 0.01862 λ² / + 4.5778 × 10⁻⁵λ⁴ - 3.2526 × 10⁻⁵λ⁶ | |
| Phase matching range Type 1 SHG | 554 – 2600 nm |
| Phase matching range Type 2 SHG | 790 – 2150 nm |
| NCPM SHG temperature dependence: / Type 1 range 950 – 1300 nm / Type 1 range 1300 – 1800 nm / Type 2 range 1100 – 1500 nm | T1 = - 1893.3λ⁴ + 8886.6λ³ – 13019.8λ² + 5401.5λ + 863.9 / T2 = 878.1λ⁴ – 6954.5λ³ + 20734.2λ² – 26378λ + 12020 / T3 = - 21630.6λ⁴ + 112251λ³ – 220460λ² + 194153λ – 64614.5 |
| NCPM SHG at 1064 nm Type 1 temperature | 149 °C |
| NCPM SHG at 1319 nm Type 2 temperature | 43 °C |
| Walk-off angle | 7 mrad (Type 1 SHG 1064 nm) |
| Thermal acceptance | 6.4 K×cm (Type 1 SHG 1064 nm) |
| Angular acceptance | 6.5 mrad×cm (Type 1 SHG 1064 nm) / 248 mrad×cm (Type 1 NCPM SHG 1064 nm) |
| Nonlinearity coefficients at 1064nm: | d₃₁ = (1.05±0.09) pm / V / d₃₂ = -(0.98±0.09) pm / V / d₃₃ = (0.05±0.006) pm / V |
| Effective nonlinearity: / XY plane / YZ plane | dooe = d₃₂ cosφ / doeo = deoo = d₃₁ cosθ |
| Expansion coefficients: | αx = 10.8 × 10⁻⁵K⁻¹ / αy = -8.8 × 10⁻⁵K⁻¹ / αz = 3.4 × 10⁻⁵K⁻¹ |
| Flatness | λ / 8 @ 633 nm |
| Parallelism | < 20 arcsec |
| Perpendicularity | < 5 arcmin |
| Angle tolerance | < 30 arcmin |
| Aperture tolerance | ± 0.1 mm |
| Surface quality | 10 / 5 scratch & dig per MIL-O-13830A |
| Clear aperture | 90% of full aperture |
Description
Lithium Triborate (LBO) is a nonlinear optical crystal with a combination of unique features:
- Wide transparency region
- Broad Type 1 and Type 2 non-critical phase-matching (NCPM) range
- Small walk-off angle
- High damage threshold
- Wide acceptance angle
- High optical homogeneity
LBO crystal is perfectly suitable for various nonlinear optical applications, like frequency doubling and tripling of high peak power pulsed Nd doped, Ti:Sapphire and Dye lasers, optical parametric oscillators (OPO) of both Type 1 and Type 2 phase-matching, non-critical phase-matching for conversion of CW and quasi-CW radiation.
We offer:
- LBO crystal of length up to 90 mm and aperture up to 60×60 mm
- AR, BBAR, P-coatings
- Different mounting and repolishing services
