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Product introduction:
Gray track damage is the most serious damage to which conventional flux-grown KTP crystal is susceptible.
Bairay's hydrothermal-grown KTP has high damage threshold and high ability to anti gray track. It is extremely suitable for laser system applications requiring high power, high efficiency and/or durability where regular flux-grown KTP crystals will suffer from gray track damage.
High gray track resistance: As shown in Fig. 3,4,5
High damage threshold: ≥2 GW/cm2(@1064nm,TEM00,10ns,10Hz)
High conversion efficiency: up to 80% depending upon cube length and laser system
High homogeneity: Δn10-5
Low absorption: <2000ppm/cm (@532mm)
150ppm/cm (@1064mm)
Low electrical conductivity: about 10-10Ω•cm
100W QCW output available
Single domain structure
Sellmeier equations(λ is μm ):

Second Harmonic Generation for Frequency Doubling
Optical Parametric Oscillator
Electro-optic Pockels Cells
Quasi Phase Matching

Aperture: up to 10 x10mmLength: up to 15mm
Length: up to 15mm
Dimension tolerance: (W ± 0.1 mm) × (H ± 0.1 mm) × (L±0.2 mm)Maximum average power density @532nm: 4kW/cm2

Transmitting wavefront distortion: λ/8 @633nm
Clear aperture: > 90% central area
Flatness: λ/8 @ 633 nm
Scratch/Dig code: 10/5 to MIL-O-13830A
Parallelism: better than 20 arc seconds
Perpendicularity: better than 5 arc minutes

AR coating: R< 0.2% at 1064nm and R<0.5% at 532 nm.

Quality Guarantee Period:
One year guaranteed against gray track under proper use.
If you have other specific requirements, please contact us.



Chang-long Zhang, Ling-xiong Huang, Wei-ning Zhou, Ge Zhang, Han-de Hou, Qing-feng Ruan, Wei Lei, Shi-jie Qin,    Fu-hua Lu, Yan-bin Zuo, Hong-yuan Shen,Guo-fu Wang. Growth of KTP crystals with high damage threshold     by hydrothermal method. Journal of Crystal Growth 292 (2006) 364–367

2. Chang-long Zhang, Zhang-gui Hu, Ling-xiong Huang, Wei-ning Zhou, Zhi lü, Ge Zhang, You-chen Liu, Yan-bin Zou, Fu-hua Lu, Hang-de Hou, Shi-jie Qin, Hai-xia Zhanga, Lang Bai. Growth and optical properties of bulk KTP crystals by hydrothermal method. Journal of Crystal Growth 310 (2008) 2010–2014
3. Xiaomao Li, Zhanggui Hu, Tianye Lu, Changlong Zhang. Study on the weak absorption of potassium titanyl phosphate crystals. Optical Engineering. 51(3) (2012) 039001-039001-6