BBO Crystal

Key Features:

  • Wide Transparency Range: BBO crystals offer a broad transmission range from 0.19 µm to 3.5 µm, making them versatile for various optical applications.
  • High Nonlinear Coefficients: BBO has large nonlinear optical coefficients, suitable for frequency conversion in nonlinear optics.
  • Phase Matching: Supports both type I and type II phase matching over a wide wavelength range.
  • High Damage Threshold: BBO crystals can withstand high power densities, with a laser damage threshold of >10 GW/cm² for nanosecond pulses at 1064 nm.
  • Thermal and Mechanical Stability: Exhibits excellent thermal and mechanical properties, ensuring durability and reliability in various environments.
  • Chemical Stability: Chemically stable with minimal hygroscopicity, reducing the need for special handling procedures.

$252.00$822.50

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Description

Items Notes

  • Size, mm: The first lists the dimensions of the crystal in millimeters; W*H*L(mm)
  • θ, deg: The second represents the phase-matching angle θ in degrees. This is the angle at which phase matching occurs for nonlinear optical processes.
  • φ, deg: The third represents the azimuthal angle φ in degrees. This angle specifies the orientation of the crystal axis in the plane perpendicular to the propagation direction.
  • Coating: The fourth describes the coating applied to the crystal, specifying the wavelength range for which the coating is optimized (e.g., P/P @ 400-800 nm).

 

 

Description: Beta Barium Borate (BBO) is a nonlinear optical crystal commonly used in various applications due to its high transparency range, significant nonlinear coefficients, and excellent phase matching capabilities. It is widely employed in laser technology, frequency conversion, and electro-optic applications.

Physical and Chemical Properties:

  • Chemical Formula: BaB₂O₄
  • Crystal Structure: Trigonal (Hexagonal system, space group R3c)
  • Lattice Constants: a = 12.532 Å, c = 12.717 Å
  • Density: 3.85 g/cm³
  • Melting Point: 1095°C
  • Mohs Hardness: Approximately 4.5
  • Thermal Conductivity: 1.2 W/m·K

Optical Properties:

  • Refractive Index:
    • n₁ = 1.657 (at 0.19 µm)
    • n₂ = 1.542 (at 0.19 µm)
  • Transmission Range:
    • 0.19 µm to 3.5 µm
  • Nonlinear Coefficient: d₃₁ = 2.2 pm/V

Nonlinear Optical Properties:

  • Phase Matching: Supports type I and type II phase matching
  • Damage Threshold: >10 GW/cm² for 1064 nm, 10 ns pulses
  • Effective Nonlinear Coefficient: deff = 2.0 pm/V

Standard Specifications

SpecificationValue
Flatnessλ/8 at 633 nm
Parallelism< 20 arcsec
Surface Quality10 – 5 scratch & dig (MIL-PRF-13830B)
Perpendicularity< 5 arcmin
Angle Tolerance< 30 arcmin
Aperture Tolerance± 0.1 mm
Clear Aperture90% of full aperture

Physical and Optical Properties of BBO Crystal

PropertyValue
Chemical FormulaBaB2O4
Crystal StructureTrigonal, 3m
Optical SymmetryNegative Uniaxial (no > ne)
Space GroupR3c
Density3.85 g/cm³
Mohs Hardness5
Optical HomogeneityΔn = 10⁻⁶ cm⁻¹
Transparency Region189 – 3500 nm
Linear Absorption Coefficient at 1064 nm< 0.1% cm⁻¹
Refractive Indices (no)
at 1064 nm1.6551
at 532 nm1.6750
at 355 nm1.7055
at 266 nm1.7571
at 213 nm1.8465
Refractive Indices (ne)
at 1064 nm1.5426
at 532 nm1.5555
at 355 nm1.5747
at 266 nm1.6139
at 213 nm1.6742
Sellmeier Equations (λ, µm)
nₒ²2.7366122 + 0.0185720 / (λ² – 0.0187846) – 0.0143756 λ²
nₑ²2.3698703 + 0.0128445 / (λ² – 0.0153064) – 0.0029129 λ²
Phase Matching Range Type 1 SHG410 – 3300 nm
Phase Matching Range Type 2 SHG530 – 3300 nm
Walk-off Angle55.9 mrad (Type 1 SHG 1064 nm)
Angular Acceptance1.2 mrad x cm (Type 1 SHG 1064 nm)
Thermal Acceptance70 K x cm (Type 1 SHG 1064 nm)
Nonlinearity Coefficients
d₃₁± 2.2 pm/V
d₂₂d₂₂ = d₃₁ ± 0.08 pm/V
Effective Nonlinearity Expressions
d_coe = d₃₁ sinθ – d₃₂ cosθ sin3φ
d_oee = d₃₁ cosθ – d₃₂ cosθ cos3φ
Thermal Expansion Coefficient
α₁₁ = 4 x 10⁻⁶ K⁻¹
α₃₃ = 36 x 10⁻⁶ K⁻¹
Damage Threshold for TEM₀₀
> 0.5 GW/cm² at 1064 nm, 10 ns
> 50 GW/cm² at 1064 nm, 1 ps
> 200 GW/cm² at 800 nm, 100 fs, 5 Hz

Applications BBO Crystal:

  • Frequency Doubling: Widely used for second harmonic generation (SHG) of lasers, including Nd

    lasers.

  • Optical Parametric Oscillators (OPOs): Suitable for generating tunable wavelengths.
  • Electro-Optic Modulators: Employed in high-speed electro-optic applications.
  • Ultraviolet (UV) Generation: Effective in producing UV light through nonlinear processes.

Processing and Handling:

  • Surface Protection: To maintain the integrity of BBO crystals, a protective coating may be applied during handling and processing.
  • Machining: Requires careful handling to avoid damage to the crystal structure during milling or other machining processes.

Why Choose Shape Optics on BBO Crystal?

At Shape Optics, we pride ourselves on our comprehensive expertise and advanced capabilities in the field of optical materials and components. Our commitment to quality and innovation has positioned us as a leader in the industry, serving a diverse range of applications from scientific research to industrial manufacturing.

  • Advanced Manufacturing: Shape Optics utilizes state-of-the-art equipment and techniques to ensure the highest precision and quality in our products. Our manufacturing processes are designed to meet the stringent demands of modern optical applications.
  • Customization: We understand that every project is unique. Shape Optics offers customized solutions tailored to meet the specific needs of our clients. Whether you require specific dimensions, coatings, or performance characteristics, we have the flexibility to deliver.
  • Quality Assurance: Our rigorous quality control processes ensure that every product we deliver meets the highest standards of performance and reliability. Shape Optics is committed to continuous improvement and excellence in all aspects of our operations.
  • Expertise and Support: With a team of highly skilled professionals, Shape Optics provides unparalleled technical support and expertise. Our team is dedicated to helping you achieve optimal results in your optical applications.
  • Global Reach: Shape Optics serves clients worldwide, providing reliable and timely delivery of products. Our global network ensures that we can meet your needs wherever you are located.
  • Sustainability and Responsibility: Shape Optics is committed to sustainable practices and responsible manufacturing. We strive to minimize our environmental impact while delivering high-quality optical solutions.

Beta Barium Borate (BBO) crystals from Shape Optics represent the pinnacle of quality and performance in optical materials. With our advanced capabilities, commitment to quality, and customer-centric approach, Shape Optics is your ideal partner for all your optical needs. Explore the possibilities with our BBO crystals and experience the Shape Optics difference.

For more information, please visit our website at Shape Optics or contact us directly to discuss your specific requirements.

Additional information

Weight0.5 kg
Dimensions12 × 10 × 8 cm

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