BBO Nonlinear Crystal
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China
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On FindLight:
since 2019
Description
β-Barium Borate (β-BBO) Nonlinear Crystal is a highly regarded material in the field of nonlinear optics, offering exceptional performance in frequency conversion processes across ultraviolet, visible, and near-infrared spectrums. Known for its impressive nonlinear optical coefficients and broad transparency range from 189 nm to 3500 nm, β-BBO is a preferred choice for applications demanding high efficiency and precision.
One of the standout features of β-BBO is its high damage threshold, which makes it suitable for use in high-power laser systems. Its low group-velocity dispersion further enhances its suitability for complex optical systems, ensuring minimal pulse distortion. These properties make β-BBO an ideal candidate for frequency converters and optical parametric oscillators, as well as for generating entangled photon pairs in quantum optics applications.
As a negative uniaxial crystal, β-BBO provides phase matching for a wide range of second-order nonlinear interactions, extending almost throughout its entire transparency range. This versatility makes it indispensable for nonlinear frequency conversion, particularly in the ultraviolet and near-infrared regions. Moreover, β-BBO is a critical component in near-infrared optical parametric chirped pulse amplifiers, which are known for delivering ultra-short optical pulses with high average and peak powers.
Overall, β-BBO's combination of broad transmission range, robust mechanical properties, and large effective second harmonic generation coefficient underscores its importance in advanced optical applications. Its high optical homogeneity and excellent physical properties further contribute to its reputation as a leading nonlinear crystal for cutting-edge photonics research and development.
BBO Nonlinear Crystal
Specifications |
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|---|---|
| Crystal Type: | BBO (Beta Barium Borate) |
| Phase Mathcing Type: | Not Applicable |
| Mounting: | Unmounted |
| Width: | 3 mm |
| Height: | 3 mm |
| Length: | 20 mm |
| Flatness: | <= Lambda/10 |
| Surface Quality (Scratch-Dig): | 20-10 |
| AR Coating: | One side |
| Chemical Formula: | BaB2O4 |
| Thermal Conductivity: | 1.2 W/m/K (⊥c); 1.6 W/m/K (//c) |
| Thermal Expansion Coefficient: | α,4×10-6/K; c,36×10-6/K |
| Transparency Range: | 189 – 3500 nm |
| SHG Phase Matchable Range: | 409.6 ∼ 3500nm (Type I); 525 ∼ 3500nm (TypeII) |
| NLO Coefficients: | deff(I)=d31sinθ+ (d11cos3φ – d22sin3φ)cosθ,deff(II)=(d11sin3φ+ d22cos3θ)cos2θ |
| Therm-Optic Coefficients: | dno/dT = – 9.3 x 10-6/◦C,dne/dT = -16.6 x 10-6/◦C |
| Half-Wave Voltage: | 48 KV (at 1064 nm) |
| Damage Threshold At 1.064 μm: | 5 GW/cm2 (10 ns); 10 GW/cm2 (1.3 ns) |
| Damage Threshold At 0.532 μm: | 1 GW/cm2 (10 ns); 7 GW/cm2 (250 ps) |
Features
- High Nonlinear Optical Coefficients: β-BBO exhibits exceptional nonlinear optical properties, making it ideal for frequency conversion applications.
- Broad Transparency Range: The crystal has a wide transparency range from 189 nm to 3500 nm, suitable for ultraviolet, visible, and near-infrared applications.
- High Damage Threshold: β-BBO can withstand high-intensity laser beams, ensuring durability and longevity in various optical setups.
- Phase Matching Capabilities: Offers phase matching for a wide range of second-order interactions, enhancing its versatility in nonlinear optical applications.
- Wide Range of Applications: Used in frequency converters, optical parametric oscillators, and quantum optics for generating entangled photon pairs.
- Negative Uniaxial Crystal: Facilitates phase matching over its entire transparency range, making it a preferred choice for nonlinear frequency conversion.
- High Optical Homogeneity: With δn≈10-6/cm, β-BBO ensures consistent performance across its volume.
- Good Mechanical Properties: Offers appropriate mechanical stability for various optical applications.
- Electro-Optic Applications: Utilized as an electro-optic crystal in Pockels cells, enhancing its functionality in optical modulation.
- Medical and Material Processing Uses: Suitable for 532 nm lasers in medical applications and 266 nm lasers in material processing.
- Effective SHG Coefficient: Large second harmonic generation (SHG) coefficient for efficient frequency doubling.
- Thermal Stability: Features a thermal conductivity of 1.2 W/m/K (⊥c) and 1.6 W/m/K (//c), ensuring stable performance under varying temperatures.
Applications
- Frequency Conversion: Utilized in ultraviolet, visible, and near-infrared frequency conversion applications.
- Optical Parametric Oscillators (OPO): An essential component in OPO systems for generating a broad range of wavelengths.
- Quantum Optics: Used to generate entangled photon pairs and ten-photon entanglement.
- Optical Parametric Chirped Pulse Amplifiers: Crucial for near-infrared applications, delivering high average and ultrahigh peak powers.
- Pockels Cells: Acts as an electro-optic crystal in Pockels cells for modulating light.
- Material Processing: 266nm lasers are used in precision material processing applications.
- Medical Applications: 532nm lasers are employed in various medical procedures.
Frequently Asked Questions
Some of the applications of BBO Nonlinear Crystal include material processing, optical communication, radar and ranging, and medical applications such as dual wavelength (1064nm 532nm) laser and 620-670nm OPO tunable pulsed laser.
The outstanding features of beta-barium borate (β-BaB2O4, β-BBO) include its high nonlinear optical coefficients, low group-velocity dispersion, broad transparency range (189–3500 nm) and high damage threshold.
BBO Nonlinear Crystal is widely used for frequency conversion in the ultraviolet, visible and near-infrared.
The range of phase matching for BBO Nonlinear Crystal is large, from 409.6 nm to 3500nm.
The range of transmission for BBO Nonlinear Crystal is from 190 nm to 3500nm.