Lithium Triborate LBO Nonlinear Crystal
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China
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On FindLight:
since 2022
Description
Lithium Triborate (LBO) Crystals are renowned for their exceptional optical properties, making them a preferred choice in various high-power laser applications. These crystals are characterized by their high damage threshold, which ensures durability and reliability even under intense laser exposure. This makes them particularly suitable for environments where high power and precision are paramount.
The broad transparency range of LBO crystals, spanning from 169 nm to 2600 nm, allows for versatile applications across different wavelengths. This wide range, combined with their excellent thermal stability, ensures that LBO crystals maintain their performance under varying temperature conditions. The rhombic crystal structure further enhances their optical efficiency, contributing to their widespread use in both civilian and military laser systems.
In terms of phase matching, LBO crystals offer flexibility with Type I and Type II non-critical phase matching capabilities. For Type I phase matching, the crystals are effective within a wavelength range of 1000-1300 nm when temperature-controlled. Meanwhile, Type II phase matching is optimal within 800-1100 nm at room temperature. This adaptability makes LBO crystals a versatile component in optical parametric amplifiers (OPA) and oscillators (OPO), as well as in second and third harmonic generation (SHG/THG) of high-power Nd:YAG lasers.
Lithium Triborate LBO Nonlinear Crystal
Specifications |
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|---|---|
| Crystal Type: | LBO (Lithium Triborate) |
| Phase Mathcing Type: | Not Applicable |
| Width: | 3 mm |
| Height: | 15 mm |
| Length: | 3 mm |
| Flatness: | <= Lambda/8 |
| Surface Quality (Scratch-Dig): | 20-10 |
| AR Coating: | Both Sides |
Features
- Broad Transparency Range: Covers 169–2600 nm for wide application flexibility.
- High Nonlinear Coefficients: Ensures efficient frequency conversion for SHG, THG, OPO, and OPA.
- Excellent Phase-Matching: Supports both Type I and Type II non-critical phase matching.
- High Damage Threshold: Up to 19 GW/cm² at 1064 nm for pulsed laser operation.
- Superior Optical Quality: Surface flatness < λ/8 @ 632.8 nm with 20/10 scratch-dig.
- Thermal and Chemical Stability: Provides long-term reliability in demanding environments.
Applications
- High-Power Nd:YAG & Nd:YLF Lasers: Suitable for both civilian and defense laser systems.
- SHG/THG of 1340 nm Lasers: Efficient frequency conversion for advanced laser systems.
- Optical Parametric Oscillators (OPO): Enables tunable wavelength generation.
- Optical Parametric Amplifiers (OPA): Enhances performance in ultrafast laser systems.
- Scientific Research & Industrial Lasers: Reliable crystal solution for spectroscopy, metrology, and precision instrumentation.
Frequently Asked Questions
The chemical formula of the nonlinear crystal is LiB3O5.
The transparency range of the LBO crystals is 169 - 2600 nm.
LBO crystals are used in high-power Nd:YAG/Nd:YLF lasers for civilian and military purposes, SHG/THG of high-power 1340nm Nd:YAG lasers, OPA & OPO, and they have broad transparency range, high nonlinear coefficient, and frequency conversion efficiency.
The laser-induced damage threshold is 9 GW/cm² at 1064nm, 9ns and 19 GW/cm² at 1064nm, 1.3ns.
For Type I non-critical phase matching, the wavelength range is 1000-1300 nm under temperature control. For Type II non-critical phase matching, the wavelength range is 800-1100 nm at room temperature.
The Mohs hardness of the LBO crystals is 6.
Key properties include a clear aperture of > 90%, parallelism error of < 20 arcsec, perpendicularity error of < 5 arcmin, surface quality of 20/10 S/D, and surface flatness of < λ/8 @ 632.8nm.