LBO (Lithium Triborate) is a nonlinear crystal with high optical homogeneity, broad angular and temperature bandwidth, and high damage threshold. It has a wide range of applications in nonlinear optics, including frequency doubling, mixing, and optical parametric oscillation. LBO crystal is also highly resistant to moisture and provides excellent resistance to optical and mechanical shocks.
We offer：
♦ LBO crystals of length up to 90 mm and aperture up to 60 × 60 mm
♦ AR, BBAR, P-coatings
♦ Different mounting and repolishing services
Main features:
♦ High optical uniformity
♦ Wide range of light transmission bands (160-2600 nm)
♦ High frequency multiplication conversion rate (3 times KDP)
♦ High damage threshold
Typical applications:
♦ Frequency doubling for Nd:YAG and Nd:YLF lasers
♦ Optical Parametric Amplifier (OPA) and Optical Parametric Oscillator(OPO)
♦ Ruby, Ti:Sapphire, and Cr:LiSAF Laser Frequency Doubling
Transparency curve of LBO
Technical Parameters
Argument Name | Values and Ranges |
Size Tolerance | ± 0.1 mm |
Dimension Tolerance | Δq < 0.5°, Δj < 0.5° |
Clear Aperture | > 90% |
Surface Quality | 10/5, 20/10 after coating |
Flatness | < λ/10@633nm |
Wavefront Distortion | < λ/8@633nm |
Parallelism | < 20 arc sec |
Perpendicularity | < 5 arc min |
Coating | AR, BBAR, P-coatings |
Quality Warranty Period | 1 year (under proper use) |
Crystal Structure and Physical Properties
Argument Name | Values and Ranges |
Crystal Structure | Orthorhombic，Space group Pna21，Point group mm2 |
Crystal Parameter | a =8.4473 Å，b=7.3788 Å，c=5.1395 Å，Z=2 |
Melting Point | About 834°C |
Mohs Hardness | 6 |
Density | 2.47 g/cm3 |
Thermal Expansion Coefficient | ɑx=10.8 × 10-5/K，ɑy=-8.8 × 10-5/K，ɑz=3.4 × 10-5/K |
Absorption Coefficient | ＜0.1%/cm at 1064nm |
Standard Size
| Product No. | Size（mm) | θ（°） | Φ（°） | Coating | Application |
| LBO-301 | 3 × 3 × 8 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-302 | 3 × 3 × 10 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-303 | 3 × 3 × 15 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-304 | 3 × 3 × 20 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-401 | 4 × 4 × 10 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
LBO-402 | 4 × 4 × 15 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-403 | 4 × 4 × 20 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-501 | 5 × 5 × 10 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-502 | 5 × 5 × 15 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| LBO-503 | 5 × 5 × 20 | 90 | 11.6 | AR/AR @ 1064 + 532 nm | SHG@1064 nm, Type 1 |
| Product No. | Size（mm) | θ（°） | Φ（°） | Coating | Application |
| LBO-305 | 3 × 3 × 15 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| LBO-306 | 3 × 3 × 20 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| LBO-307 | 3 × 3 × 30 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| LBO-308 | 3 × 3 × 50 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| LBO-404 | 4 × 4 × 10 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| LBO-405 | 4 × 4 × 15 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| LBO-406 | 4 × 4 × 20 | 90 | 0 | AR/AR @ 1064 + 532 nm | NCPM SHG@1064 nm, T = 149 °C |
| Product No. | Size（mm) | θ（°） | Φ（°） | Coating | Application |
| LBO-309 | 3 × 3 × 10 | 90 | 37.2 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 1 |
| LBO-310 | 3 × 3 × 15 | 90 | 37.2 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 1 |
| LBO-407 | 4 × 4 × 10 | 90 | 37.2 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 1 |
| LBO-408 | 4 × 4 × 15 | 90 | 37.2 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 1 |
| LBO-504 | 5 × 5 × 10 | 90 | 37.2 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 1 |
| LBO-505 | 5 × 5 × 15 | 90 | 37.2 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 1 |
| Product No. | Size（mm) | θ（°） | Φ（°） | Coating | Application |
| LBO-311 | 3 × 3 × 10 | 42.2 | 90 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 2 |
| LBO-312 | 3 × 3 × 15 | 42.2 | 90 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 2 |
| LBO-409 | 4 × 4 × 10 | 42.2 | 90 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 2 |
| LBO-410 | 4 × 4 × 15 | 42.2 | 90 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 2 |
| LBO-506 | 5 × 5 × 10 | 42.2 | 90 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 2 |
| LBO-507 | 5 × 5 × 15 | 42.2 | 90 | AR/AR @ 1064 + 532/355 nm | THG@1064 nm, Type 2 |
| Product No. | Size (mm) | θ（°） | Φ（°） | Coating | Application |
| LBO-313 | 3 × 3 × 20 | 90 | 0 | AR/AR @ 1547 + 773/1547 + 773 + 515 nm | Type 1 Phase Matching LBO Crystals Different SHG, THG, and OPO applications |
| LBO-411 | 4 × 4 × 15 | 90 | 10.4 | AR/AR @ 1064 + 532 nm | |
| LBO-604 | 6 × 6 × 6 | 90 | 13.7 | AR/AR @ 1064 + 532 nm |
| Product No. | Size（mm) | θ（°） | Φ（°） | Coating | Application |
| LBO-602 | 6 × 6 × 6 | 41.5 | 90 | AR/AR @ 1064 + 532/355 nm | Type 2 Phase Matching LBO Crystals Different SHG, THG, and OPO applications |
| LBO-314 | 3 × 3 × 15 | 43.3 | 90 | AR/AR @ 1064 + 532/355 nm | |
| LBO-603 | 6 × 6 × 6 | 51.9 | 90 | AR/AR @ 1064 + 532/355 nm | |
| LBO-604 | 6 × 6 × 10 | 51.9 | 90 | AR/AR @ 1064 + 532/355 nm |
Note: All sizes can be customized, welcome to consult.
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