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Crystals NLO Crystals GTR-KTP


GTR-KTP crystals have gray track resistance sufficiently greater than typical flux grown KTP. This is possible due to advances in the controlled growth of KTP crystals, using proprietary modified fluxes and heat treatment. These GTR-KTP crystals are suitable for high power density applications, where regular flux-grown KTP crystals would suffer from gray track damage


Standard Specifications

Transmitting Range: 350-4500nm
Dimension Tolerances: (W+/-0.1mm)x(H+/-0.1mm)x(L+0.2/-0.1mm)
Clear Aperture: >90%
Angle tolerance:
Scratch/Dig: 10/5 per MIL-O-13830A
Parallelism: <20"
Perpendicularity: 5'
Flatness: λ/8@632.8nm
Wavefront Distortion: <λ/4@632.8nm
Damage Threshold: 500MW/cm^2@1064nm (10ns,10Hz, pulse laser)
Standard Coating: AR/AR@1064&532nm
Maximum Aperture: 10x10mm
Maximum Length: 20mm


1. High quality crystals with competitive pricing;
2. High gray trace resistance;
3. Large nonlinear optical coefficient;
4. Wide angular bandwidth and small walk-off angle;
5. Broad temperature and spectral bandwidth;
6. High electro-optic coefficient and low dielectric;
7. Non-hydroscopic, chemically and mechanically stable;
8. High thermal conductivity


1、CW and high average power for green outputs;
2、E-O modulators, optical switches, directional couplers;
3、Optical waveguides for integrated NLO and E-O devices.


The other specification for GTR-KTP crystals is available from CRYSTECH.



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