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CTH:YAG


Ho: Cr: Tm: YAG is a high efficient laser material which lasers at 2.1 µm. It has wide applications in medical military and meteorology fields. 


Advantages


● High slope efficiency 

● Pumped by flash lamp or diode

● Operates well at room temperature 

● Operates in a relatively eye-safe wavelength range 


Laser Rods


● Flat/flat

● Parallel/ anti-parallel wedged

● Brewster angle

● Concave/convex radii

● Cylinder grooved



Specifications

Material

Cr: Tm: Ho: YAG

Dopant concentration

Ho:~0.35at%, Tm:~5.8at%, Cr:~1.2at% 

Crystal Orientation 

±5° 

Dimensions

Diameter:3mm-6mm, Length:15-120mm(upon customer’s request)

Extinction Ratio

>25dB(depends on actual size)

Barrel Finish

Ground Finish 400#Grit

Scratch/Dig

 10-5@MIL-O-13830A

Diameter Tolerance

+0/-0.05mm

Length tolerance

+/-0.5mm

Wavefront Distortion

≤ 0.125λ/inch@1064nm

Perpendicularity

≤ 5 arc minutes

Parallelism

≤ 10 arc seconds

Chamfer

≤0.15 × 45 °

Anti-Reflection Coating

≤0.25%@2094 nm

Properties

Crystal structure

Cubic

Laser wavelength 

2.094um

Melting point

1970°C   

Fluorescence lifetime

8.5ms

Absorption linewidth

4nm

Diode pump band

781nm

Major pump bands

400~800nm

Index of Refraction

1.80@2.094um

Density

4.56 gcm-3

Laser Transition

5I7 - 5I8

Photon Energy

9.55 x 10-20 J

Emission Cross Section

7 x 10-21 cm2