Er: YAG Crystals Erbium Doped Yttrium Aluminum Garnet Laser Crystal

Er:YAG combine various output wavelength with the superior thermal and optical properties of YAG. It's an excellent lase

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Basic Info

Specification	customized
Trademark	optu
Origin	Chengdu
HS Code	9001909090
Production Capacity	5000 Pieces / Year

Product Description

Er:YAG combine various output wavelength with the superior thermal and optical properties of YAG. It's an excellent laser crystal which lasers at 2.94um highly surface cutting laser. It is a well known material for medical applications.

ADVANTAGES

Very high slope efficiency

Operates well at room temperature

Operate in a relatively eye-safe wavelength range

Flat/flat

Parallel/ anti-parallel wedged

Brewster angle

Concave/convex radii

Cylinder grooved

Specifications

Material	Er:YAG
Dopant concentration	Er: ~50 at%
Orientation	<111>
Dimensions	Diameter:2mm-50mm, Length:5mm-180mm(Upon customer's request)
Diameter tolerance	+0/-0.04mm
Length tolerance	+0.5/-0mm
Chamfer	[email protected]°
Extinction Ratio	>25dB(depends on actual size)
Flatness	<λ/[email protected]
Barrel Finish	Ground Finish 400#Grit
Surface Quality	10-5 @MIL-0-13830A
Chips	<0.1mm
Perpendicularity	<5 arc minutes
Parallelism	<10 arc seconds
Wavefront Distortion	λ/8 per inch @632.8nm
Damage Threshold	>500MW/cm2
Anti-Reflection coating	R<0.20%@2940nm per surface

Properties

Chemical Formula	Er3+:Y3Al5O12
Laser Transition	4I11/2 to 4I13/2
Photon Energy	6.75×[email protected]
Laser Wavelength	2940nm
Emission Cross Section	3×10-20 cm2
Index of Refraction	[email protected]
Pump Bands	600~800nm
Moh Hardness	8.25
Melting Point	1965ºC
Thermal Conductivity	11.2W/m/K
Thermal shock Resistance	790W/m

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