CLBO Crystal – Cesium Lithium Borate Nonlinear Optical Crystal

Description

CLBO (Cesium Lithium Borate, CsLiB₆O₁₀) is a high-performance nonlinear optical (NLO) crystal widely used for deep UV and UV laser generation. With its high nonlinear coefficient, excellent UV transparency, wide phase-matching range, and high damage threshold, CLBO has become a preferred crystal for frequency conversion of Nd:YAG, excimer, and tunable lasers.

Compared with BBO and LBO, CLBO offers higher effective nonlinearities in the deep-UV region and outstanding performance for high-power continuous-wave (CW) applications, making it ideal for generating wavelengths below 200 nm.

Key Features and Properties

• Excellent UV Transmission down to 180 nm
• High Nonlinear Coefficient for efficient frequency conversion
• Wide Phase-Matching Range for SHG, THG, and OPO applications
• High Laser Damage Threshold (> 2 GW/cm²)
• Low Absorption in UV and Visible Range
• Suitable for High-Average-Power Lasers
• Large Aperture Crystal Growth up to 20 × 20 mm available
• Ideal for Deep-UV Generation (<200 nm)

Typical Applications

• Deep-UV laser generation (DUV)
• SHG/THG/FHG of Nd:YAG lasers
• Generation of 193 nm, 213 nm, and <200 nm UV light
• Optical Parametric Oscillators (OPOs)
• Pump sources for photolithography
• High-power industrial and medical UV laser systems
• Laser spectroscopy and nonlinear optics research

Crystal Structure & Material Properties

• Chemical Formula: CsLiB₆O₁₀
• Crystal System: Tetragonal
• Growth Method: Czochralski
• UV Cutoff: ~180 nm
• Transmission Range: 180–2800 nm
• Excellent birefringence for phase matching
• High structural stability at elevated laser power

Note: CLBO is slightly hygroscopic, so it requires careful handling and storage.

Standard Dimensions & Specifications

• Aperture sizes: 3×3 mm², 4×4 mm², 5×5 mm², 10×10 mm² (custom sizes available)
• Cutting angles for phase matching (θ, φ): according to application
• Surface quality: 20/10 or 40/20 Scratch-Dig
• Polish: λ/8–λ/10 at 632.8 nm
• Parallelism: <20 arcsec
• Perpendicularity: <15 arcmin
• Coatings:
  • AR@355 nm
  • AR@266 nm
  • AR@193/213 nm (optional)

Technical Datasheet

Chemical Formula	CsLiB₆O₁₀
Crystal Structure	Tetragonal
Transmission Range	180 – 2800 nm
UV Cutoff	~180 nm
Refractive Indices	nx = 1.61, ny = 1.56, nz = 1.55 (typical)
Effective Nonlinear Coefficient	d_eff ≈ 0.7 pm/V
Phase-Matching Type	Type I & Type II
Density	2.62 g/cm³
Mohs Hardness	~5
Melting Point	~1100 °C
Hygroscopicity	Slightly hygroscopic
LDT (CW)	> 500 MW/cm²
LDT (Nanosecond)	> 2 GW/cm²
Thermal Expansion	α ≈ 6.5 ×10⁻⁶ /K
Standard Surface Quality	20/10 or 40/20
Orientation Tolerance	<0.1°
Coating Options	AR@355 nm, AR@266 nm, AR@193 nm

 

Customization Options

• Custom phase-matching angles for SHG/THG/FHG
• High-damage-threshold AR coatings
• High-power grade with reduced internal absorption
• Special length and aperture sizes for deep-UV setups
• Crystal mounting and dry-pack service to prevent moisture absorption

Packaging and Delivery

• Vacuum-sealed moisture-proof packaging
• Dry nitrogen storage for CLBO crystals
• Cleanroom-safe hard case protection
• Expedited delivery for standard sizes
• Custom orders shipped based on fabrication schedule

Why Choose Our CLBO Crystals

• High-purity raw materials ensuring low absorption
• Precision phase-matching and strict quality control
• Superior polishing and coating for UV laser applications
• Flexible customization and competitive pricing
• Experienced supplier for global laser & photonics companies

Ordering & Contact Information

We offer flexible MOQ (Minimum Order Quantity), competitive pricing and global shipping. For custom orders or technical inquiries, please contact us for a detailed consultation!