Online Inquiry
Contact: *
Company:
Subject:
Tel:
E-mail: *
msn
Fax:
 
Content: *
Code: *(marked *should be filled)
 

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

4I11/2 to 4I13/2

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

[email protected]°

Extinction Ratio

>25dB

AR Coating

R≤ 0.25% (@2940nm)






CopyRight © Deln Optics. All Rights Reserved.   Email:[email protected]