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Nanjing Crylink Photonics Co.,Ltd

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Cr YAG Laser Crystals With Excellent Physicochemical Properties Cubic

Name: Cr YAG Laser Crystals With Excellent Physicochemical Properties Cubic
Brand: CRYLINK
Price: 1 USD

Cr YAG Laser Crystals With Excellent Physicochemical Properties Cubic Manufactures

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	22-1515 mm×20mm

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