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HCT:YAG

Triple-doped Holmium:Chromium:Thulium YAG (Ho:Cr:Tm:YAG) is a laser material which emits radiation at 2097 nm. HCT:YAG can be pumped by a flashlamp or with laser diodes. It is widely used in military, medicine, and meteorology. Lasers are able to work at a room temperature, havę high slope efficiency, and operate at a wavelength where the threshold for eye damage is relatively high. Main diode pump band is at 785 nm but it can also be pumped between 400 and 800 nm.

 

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Optola offers wide range of HCT:YAG crystals sizes by request. 

Orientation: <111> or <100> crystalline within 5°
Wavefront distortion : λ/8 per inch @ 633 nm
Extinction Ratio: >25dB
Dimension Tolerances Rods with diameter: ±0.03 mm , Length: ±0.5 mm
Surface quality: 10/5 Scratch / Dig
Parallelism: < 10 arc seconds
Perpendicularity: < 5 arc minutes
Flatness: λ/10 @ 633 nm
chamfer: <0.1 mm @ 45deg.
Barrel Finish: 50-80 micro-inch (RMS) ,
AR Coating Reflectivity <0.25%
Laser Wavelength 2.097 µm
Photon Energy 9.55 x 10-20 J
Emission Cross Section 7 x 10-21 cm2
Fluorescence Lifetime 8.5 ms
Index of Refraction 1.80 @2.08 µm                                   
Absorption Linewidth 4 nm
Diode Pump Band                       781 nm
Major Pump Bands 400~800 nm
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