Nonlinear LBO Crystal

Cr4:YAG Crystal

Passive Q-switching is preferred for simplicity of manufacture and operation, low cost and reduced system size and weight. Cr4+:YAG is an excellent crystal for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Yb:YAG or other Nd and Yb doped lasers at wavelength from 1.0 to 1.2um.
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Cr4+:YAG

Passive Q-switching is preferred for simplicity of manufacture and operation, low cost and reduced system size and weight. Cr4+:YAG is an excellent crystal for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Yb:YAG or other Nd and Yb doped lasers at wavelength from 1.0 to 1.2um.

 

Advantages

l  High power laser pulses without electro-optic Q-switches

l  Good thermal conductivity

l  High damage threshold

l  More robust and stable than dyes or color centers 



Specifications

Material

Cr 4+:YAG

Orientation

<111> or <110> or <100>

Initial absorption coefficient

0.5-7/cm@1064nm

Diameter tolerance

Diameter:+0/-0.02mm, W×H:+/-0.1mm

Length tolerance

+/-0.5mm

Initial transmittance

5%-95%@1064nm

Dimension

Diameter:3-12mm, H×W:2×2-30×30mm(upon customer’s request)

Barrel finish

Ground finish 400#Grit

Clear aperture

>90% central area

Parallelism

<10 arc seconds

Perpendicularity

<5 arc minutes

Flatness

<λ/8@632.8nm

Scratch/Dig

10/5@MIL-0-13830A

Anti-Reflection coating

R<0.15%@1064nm per surface

Damage threshold

>750MW/cm2@1064nm 10ns 10HZ


Properties

Chemical Formula

Cr4+:Y3Al5O12

Crystal Structure

Cubic

Melting Point

1970°

Density 

4.55g/cm3

Mohs hardness

8.5

Wavelength

950nm-1100nm 


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