Er:YAG

Er:YAG is an excellent laser crystal which lases at 2.94μm, This wavelength is the most readily absorbed into water and hydroxyapatite of all existing wavelengths and is considered a highly surface cutting laser.

It has wide applications in medical applications, such as dental (hard tissues), orthopedics, etc.

Advantages

High slope efficiency

Operate well at room temperature

Operate in a relatively eye-safe wavelength range

Properties

Crystal Structure	Cubic
Lattice Parameters	12.01Å
Orientation	<100> within 5°
Melting Point	1970℃
Moh Hardness	8.5
Density	4.56g/cm³
Specific Heat (0-20)	0.59J/g.cm³
Thermal Expansion Coefficient	[100]Direction:8.2×10^-6/℃(0~250℃)

Laser Transition	⁴I_11/2 to ⁴I_13/2
Laser Wavelength	2940nm
Photon Energy	6.75×10^-20J(@2940nm)
Emission Cross Section	3×10^-20 cm²
Index of Refraction	1.79 @2940nm
Pump Bands	600~800 nm

Specifications

Dopant concentration	Er: ~50 at%
Diameter Tolerance	+0/-0.05mm
Length Tolerance	+0.5/-0mm
Surface Flatness	<λ/[email protected]
Wavefront Distortion	<λ/[email protected]
Surface Quality	10/5 Scratch/Dig
Clear Aperture	>95%
Parallelism	<10 arc seconds
Perpendicularity	<5 arc minutes
Chamfer	0.1mm@45°
Extinction Ratio	>25dB
AR Coating	R≤ 0.25% (@2940nm)

Information

Product Line

WARRANTY

All products are guaranteed to be in specifications in material and workmanship for a period of 12 months after shipment.
We do not assume liability for installation, labor or consequential damages.
This warranty is not suitable for failure of the products due to misuse, abuse, accident, or neglect.

Contacts

Deln Optics
E-mail: [email protected]

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