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Cr YAG Laser Crystals With Excellent Physicochemical Properties Cubic

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Cr YAG Laser Crystals With Excellent Physicochemical Properties Cubic

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Place of Origin : China

Brand Name : CRYLINK

Certification : Iso9001

MOQ : 1 Pieces

Price : negotiation

Packaging Details : Carton

Delivery Time : 3-4 weeks

Payment Terms : TT

Supply Ability : 100 pieces /month

Model Number : CRYLINK-Cr YAG Crystal

Name : Cr:YAG

Crystal structure : cubic la3d

Lattice parameters, : 12.01

Orientation : [100] or [110] < ±0.5°

Mass density : 4.56 g/cm3

Mohs hardness : 8.5

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Cr4+:YAG crystal can be used not only as Q-switch but also as gain medium because of its excellent physicochemical properties. The Q-switch operation of pulse and CW Nd:YAG lasers has been realized by using Cr4+:YAG as Q-switch, and the CW tunable and self-mode-locked operation has also been realized by using CR4 +: YAG as gain medium. Compared with the traditional saturable absorber, Cr: YAG is superior to the traditional saturable absorber in many aspects. The doping concentration of Cr4+ ion in Cr4+:YAG is as high as 1018 cm-3, which can effectively reduce the size of passive Q-switch elements. It is beneficial to achieve high optical conversion efficiency, integration, and compact passive Q-switch laser.

Physical and Chemical Properties

Property Value
Chemical formula Cr4+:Y3Al5O12
Crystal structure cubic la3d
Lattice parameters, 12.01
Orientation [100] or [110] < ±0.5°
Mass density 4.56 g/cm3
Mohs hardness 8.5
Young’s modulus 335 GPa
Tensile strength 2 GPa
Melting point 1970°C
Thermal conductivity 0.1213
Specific Heat/ (Jg-1K-1) 0.59
Thermal Expansion /(10-6/°C@25°C) 7.8 <111>
7.7 <110>
8.2 <100>
Thermal shock resistance parameter 800 W/m
Extinction Ratio 25dB
Poisson Ratio 0.25
Refractive Index @1064 nm 1.83
Charge compensating ion Ca2+, Mg2+

Optical Properties

Property Value
Optical Density 0.1 to 0.8
Fluorescence lifetime 3.4s
Concentrations 0.5 mol % ~ 3 mol %
Emission wavelength 1350 nm ~ 1600 nm
Absorption Coefficient 1.0 cm-17 cm-1
Ground state absorption cross section 4.3×10-18 cm2
Emission state absorption cross section 8.2×10-19 cm2
Transmission 10% to 90%
Coatings AR≤ 0.2% @1064nm
Damage Threshold > 500 MW / cm2

Polishing

Property Value
Orientation Tolerence < 0.5°
Thickness/Diameter Tolerance ±0.05 mm
Surface Flatness </8@632 nm
Wavefront Distortion </4@632 nm
Surface Quality 10/5
Parallel 10
Perpendicular 5
Clear Aperture >90%
Chamfer <0.1×45°
HR coating <= 0.2% (@ 1340nm)
Maximum dimensions 2*2-15*15 mm×20mm

Product Tags:

Cr Yag Laser Crystals

      

Cr Yag Q Switch Crystals

      

1080nm Cr Yag Crystals

      
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