Leading Laser Technology with Yb:YAG Crystals

Yb:YAG (Ytterbium-Doped Yttrium Aluminum Garnet) is an advanced laser material, especially suited for efficient diode pumping. Compared to traditional Nd:YAG systems, Yb:YAG offers the following advantages:

• Larger Absorption Bandwidth: Yb:YAG crystal features an approximately 8 nm wide absorption band at 940 nm or 970 nm, significantly reducing thermal management requirements.
• Longer Upper-Laser Level Lifetime: Provides extended upper-laser level lifetime compared to Nd:YAG, improving overall laser efficiency.
• Lower Thermal Loading: Exhibits three to four times lower thermal loading per unit pump power compared to Nd:YAG, minimizing thermal loss issues.

Features of CASTECH's Yb:YAG Crystal

• Very Low Fractional Heating: Less than 11%, ensuring stable performance under high power operation.
• High Slope Efficiency: Enhances laser conversion efficiency.
• Broad Absorption Bands: Approximately 8 nm @ 940 nm, suitable for high-power diode pumping.
• No Excited-State Absorption or Up-Conversion: Improves laser efficiency and stability.
• Convenient Pumping: Efficiently pumped by reliable InGaAs diodes at 940 nm or 970 nm.
• High Thermal Conductivity: Superior thermal management.
• Large Mechanical Strength: Ensures durability and reliability.
• High Optical Quality: Guarantees excellent laser output.

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