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| LBO crystal, Lithium Triborate, LiB3O5, is a nonlinear optical crystal. For frequency doubling (SHG) / tripling (THG) of Nd:YAG, Nd:YLF, Nd:YVO4 lasers, it is one of the most useful nonlinear optical materials in ultraviolet and visible laser applications. |
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Unique features of LBO crystal:
- Broad transparency range from 160nm to 2600nm; SHG range from 550nm to 2600nm.
- High optical homogeneity ( dn = 10-6/cm) and free of inclusion.
- Relatively large effective SHG coefficient. (about three times that of KDP)
- Excellent for high power and stable second-harmonic generation. (minimal thermal lensing compared to KTP)
- High damage threshold. (18.9 GW/cm2 for a 1.3ns laser at 1053nm;25 GW/cm2 for a 10 ns laser at 1064 nm)
- Wide acceptance angle and small walk-off.
- Type I and type II non-critical phase matching (NCPM) in a wide wavelength range.
- Spectral NCPM near 1300nm.
LBO Crystal Applications:
- Frequency doubling (SHG) and tripling (THG) of high power pulsed of Nd:YAG , Nd:YVO4, Nd:YLF, Ti:Sapphire and Dye lasers.
- Optical parametric amplifiers (OPA) and oscillators (OPO) of both Type 1 and Type 2 phase-matching pumped by Excimer lasers and harmonics of Nd:YAG lasers.
- Non-critical phase-matching (NCPM) for SHG 1064nm of laser.
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| Specification |
 Dimension tolerance: (W +/- 0.1 mm) x (H +/- 0.1 mm) x (L + 0.2 mm/-0.1mm) |
| Flatness: l/8 @633nm |
| Clear aperture: > 90% central area Inspected by 10mW green laser no visible scattering paths or centres are seen |
| Surface quality: 10/5 Scratch/Dig per MIL-O-13830A |
| Parallelism: <20 arcsec |
| Perpendicularity: <5 arcmin |
| Angle tolerance : Dq< +/-0.5°, Df< +/- 0.5° |
AR coating:
(SHG): R< 0.25% at 1064nm and R<0.4% at 532 nm
(THG): R< 0.6% at 1064nm & R<0.4% at 532 nm & R<0.5% at 355 nm |
| Coat damage threshold: >500MW/cm2 |
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| Click here for more information: DETAIL INTRODUCTION OF LBO |
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| LBO Absorption Curve |
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| Standard Products (LBO) |
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Part Number |
Dimension |
Application |
Coating
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LBO2210 |
2x2x10mm |
SHG@946 |
AR coating |
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3x3x5mm |
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LBO4410 |
4x4x10mm |
SHG@1064nm |
AR coating |
LBO5510 |
5x5x10mm |
SHG@1064nm |
AR coating |
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LBO101015 |
10x10x15mm |
SHG@1064nm |
AR coating |
LBO101020 |
10x10x20mm |
SHG@1064nm |
AR coating |
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LBO121220 |
12x12x20mm |
THG@1064nm |
AR coating |
LBO151530 |
15x15x30mm |
THG@1064nm |
AR coating |
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