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HGTR-KTP Crystal

HGTR KTP crystalHGTR-KTP crystal has gray track resistance significantly higher than the regular flux-grown KTP. By improving the stoechiometry within the crystal lattice, HGTR-KTP can avoid the problems of harmonic power instability, efficiency drop, crystal blackening and beam distortion. HGTR KTP crystal is suitable for high power density applications:


- High repetition rate, high average power lasers for material processing or surgery

- High power CW lasers

 

HGTR-KTP crystal has a lower initial IR absorption and is affected less by the green laser.


KTP crystals IR absorption 


HGTR-KTP Crystal Specifications:


 Transmitting Range

 350-4500nm

 Damage Threshold

 > 2GW/cm2@1064nm (10ns 10Hz pulse laser)

 Aperture

 up to 10x10mm

 Length

 up to 20mm

 Dimension tolerance

 (W ± 0.1 mm) x (H ± 0.1 mm) x (L +0.2/-0.1 mm)

 Clear aperture

 > 90% central area

 Transmitting Wavefront Distortion

 λ/8 @ 633 nm

 Flatness

 λ/10 @ 633 nm

 Surface Quality

 10/5 to MIL-O-13830A

 Parallelism

 < 20 arc sec

 Perpendicularity

 < 5 arc min

 Angle tolerance

 ± 0.3°

 AR coating

 AR/AR@1064&532nm

 Quality Warranty Period

 One year under proper use