Cr 4+ : YAG
Cr 4+ :YAG crystal is excellent passive Q-switched crystal widely used in 1μm neodymium and ytterbium lasers. It has the characteristics of high output efficiency of Q switch and suitable for repetitive frequency work. It has a high resistance to photodamage threshold, is more stable and durable than dyes and color center saturable absorbers, and can replace electro-optic Q switches to output high-power laser pulses in some cases. Chromium doped yttrium aluminum garnet (Cr 4+ : YAG) Cr: Y 3 Al 5 O 12 crystal It is suitable for Q switch, diode pumping, Nd:YAG, Nd:YLF, Nd:YVO 4 pumping lamps and others Lasers with a wavelength of 0.8~1.2um doped with Nd or Yb.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal structure | Cubic system |
| Lattice constant | 12.01 Å |
| Melting point | 1970°C |
| Moh's hardness | 8.5 |
| Density | 4.56g/ cm3 |
| Specific heat [0–20℃] | 0.59J/g.cm 3 @0-20℃ |
| Coefficient of thermal expansion [[111] Direction；0~250℃] | [111] Direction: 7.8×10 -6 /K@0~250℃ |
| Orientation | <111>, <100>±5° |
| Initial absorption coefficient [@1064nm] | 0.5～6cm -1 @1064nm |
| Initial transmittance [@1064nm] | 5%～95% @1064nm |
| Component size | Diameter: 3~20mm; Length*Width: 3×3~20×20mm |
| Dimensional tolerance | Diameter: 0/-0.05mm, Length: ±0.5mm |
| Cylindrical processing | fine grinding |
| Parallelism of end faces | ≤30" |
| Flatness of end face [@632.8nm] | λ/8 @632.8nm |
| Surface Quality | 20-10 (MIL-O-13830A) |
| AR Coating Reflectance [@1064nm] | ≤0.25% @1064nm |
| Coating anti-laser damage threshold | ≥500MW/ cm2 |
Key Features
Datasheet
Supplier Information
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