LBO crystals
Main features
- Wide transparency range (155 nm - 2600 nm)
- Broad type I and II non-critical phase-matching range in the near IR (900 nm - 1900 nm)
- Moderately large nonlinear coefficient
- Highest damage threshold of common nonlinear crystals
- Large temperature bandwidth
- Small walk-off angle
- Low angular sensitivity
- Great optical homogenity
Application examples
- Second and third harmonics generation of Nd-doped lasers
- Efficient and broad non-critical phase-matching frequency conversion for pulsed and CW lasers
- High-power and widely tuned OPOs and OPAs
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- Description
- Properties
- Specifications
- References
LBO or Lithium triborate (LiB3O5) is famous for the temperature controllable wide type I and II non-critical phase-matching (NCPM) range. Due to low angular sensitivity and small walk-off beam quality requirements are highly reduced compared to BBO nonlinear crystal. Wide transparency window, broad phase-matching range and moderately high nonlinear coefficient paired with previous mentioned perks makes it excellent choice for high-power frequency conversion of Nd-doped, Ti:Sapphire, CW lasers and high-power, widely tuned OPOs/OPAs.
| Physical and optical properties | |
|---|---|
| Single crystal | LiB3O5 |
| Density | 2.474 g/cm3 |
| Mohs hardness | 6-7 |
| Hygroscopic susceptibility | Moderately |
| Transparency range | 155 nm - 3,2 µm @ "0" transmittance level |
| Linear absorption coefficient | <0.00035 cm-1 @ 1.0642 µm <0.0031 cm-1 @ 0.35-0.36 µm |
| Birefringence | Negative biaxial |
| Dispersion equations (λ in µm, T = 293 K) | nX2 = 2.4542 + (0.01125)/(λ2 - 0.01135) - 0.01388 λ2; nY2 = 2.5390 + (0.01277)/(λ2 - 0.01189) - 0.01849 λ2 + 4.3025 × 10-5 λ4 - 2.9131 × 10-5 λ6; nZ2 = 2.5865 + (0.01310)/(λ2 - 0.01223) - 0.01862 λ2 + 4.5778 × 10-5 λ4 - 3.2526 × 10-5 λ6 |
| Nonlinear properties | Contact us for particular application consultation |
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