High Optical Quality Yb: YAG Laser Crystals

• Customization: Available
• After-sales Service: 12 Months
• Warranty: 12 Months
• Customized: Customized
• Standard Component: Non-Standard Component
• Type: Laser Crystals
• Doping Concentration: 0.5~25at%
• Cylindrical Surface Processing: Precision Ground, Polished, Threaded
• Transport Package: Carton
• Origin: China

Product Description

Yb:YAG (Ytterbium-doped Yttrium Aluminum Garnet) is a crucial laser crystal for diode-pumped laser systems, offering distinct advantages over traditional Nd-doped laser materials. Compared to the commonly used Nd:YAG crystal, Yb:YAG exhibits an 8 nm wide absorption bandwidth for diode pumping, which effectively reduces the thermal management requirements for the laser diode. The Yb ions in Yb:YAG have a longer fluorescence lifetime at the laser upper level, and the crystal is free from excited-state absorption and energy up-conversion, resulting in minimal non-radiative heat losses. The thermal load generated per unit of pump power is 3 to 4 times lower than that of Nd:YAG, making Yb:YAG an excellent choice for high-average-power solid-state lasers. Additionally, Yb:YAG can be utilized as a scintillator material for detecting neutrinos and other particles.
 

Technical Specifications	Details
Doping Concentration	0.5~25at%
Crystal Orientation	<111>±5°
Transmitted Wavefront Distortion	≤ 0.1λ per inch
Extinction Ratio	≥ 25 dB
Product Dimensions	Diameter ≤ 30 mm, Length ≤ 220 mm; customizable as slabs or discs
Dimensional Tolerances	Diameter: 0:0/-0.03 mm, Length: 0/+0.5 mm
Cylindrical Surface Processing	Precision ground, polished, threaded
Endface Parallelism	≤ 10 arcseconds
Endface Perpendicularity to Rod Axis	≤ 5 arcminutes
Endface Flatness	λ/10 at 632.8 nm
Surface Quality	10/5 (MIL-0-13830A)
Chamfering	0.15 ± 0.05 mm
Coating	S1/S2: R ≤ 0.2% at 1030 nm & R ≤ 2.0% at 940 nm; other coatings customizable
Laser Damage Threshold of Coating	≥ 5 J/cm² at 10 ns, 10 Hz
Laser Wavelength	1030 nm
Diode Pump Absorption Wavelength	940 nm or 970 nm
Refractive Index	1.8197 at 1030 nm
Special Features	Wedge angles, concave/convex surfaces, thermal gold plating