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Cr4+:YAG Crystal

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Cr4+:YAG Crystal
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Capabilities:

Cr4+ dopant: 0.5 mol% ~ 3 mol%

Aperture: 2x2 ~ 14x14mm

Length: 0.1 ~ 12mm

Initial Ttransmission 10% ~ 99%


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Product Features

 

Passive Q-Switching is preferred for simplicity of manufacturing and operation, low cost and reduced system size and weight. Cr 4+ :YAG (Y3Al5O12) 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 1.2 mm. Because of its chemically stable, durable, UV resistant, good thermal conductivity and high damage threshold (> 500 MW/cm2) and being easy to be operated, it will replace traditional materials, such as, LiF, organic Dye and color centers.

01

Advantages of Cr 4+ :YAG Crystals

02

Providing high power laser pulses without electro-optic Q-switches

03

More robust and stable than dyes or color centers

04

High damage threshold

Product parameters

Specifications:


Orientation:

<111> or <100> within 5°

Dimensional Tolerance:

+/-0.1mm

Flatness:

<λ/8 at 633nm

Surface Quality:

20/10 Scracth/Dig

Parallelism:

< 20 arc seconds

Perpendicularity:

< 5 arc minutes

Wavefront Distortion:

<λ/8 at 633nm

Clear Aperture:

Central 90%

Chamfer:

0.15x45°

Coating:

* S1,S2: AR@1064nm

* S1: HR@1064nm; S2: AR@1064nm



Chemical Formula

Cr4+:Y3A15O12

Crystal Structure

Cubic garnet

Recovery time

8.5μs

Hardness Mohs

8.5

Density

4.56g/cm

Orientation

[100]+/-10°

Thermal conductivity

12.13w/m/k

Refractive index

1.82 @ 1064nm



Base state absorption cross section

σs1=4.3x10-18cm2

Emission state absorption cross section

σs2=8.2x10-19cm2

Fluorescence lifetime

3.4us

 *When ordering Cr4+:YAG crystal, please specify the aperture, initial transmission(To) and coatings.



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