Dream Lasers' KTP feathers:
As large as 20x20x20mm devices are available
Massive Production to support industrial and Commercial Applications, as many as 5,000pcs per month
AR-Coating, Mounting and Re-polishing Service
Strict Quality Control
Fast Delivery
Competitive Price and Huge OEM Discount
Free Technical Support Always
Standard Specifications of KTP
Dimension tolerance: (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm / -0.1mm)
Transmitting wavefront distortion: less than l/4 @633nm  
Clear aperture: > 90% central area
Flatness: l/8 @633nm
Surface Quality : 10/5 Scratch and Dig to MIL-O-13830A
Parallelism: better than 10 arc seconds
Perpendicularity: 5 arc minutes
Angle tolerance (degree): D(q) < ± 0.5, D(f) < ± 0.5
AR coating: R< 0.1% at 1064nm and R<0.2% at 532nm
Quality Warranty Period: one year under proper use


1. Dream Lasers has large quantities of standard size KTP crystals in-stock. The next-day delivery is available for the in-stock crystals. The standard size crystals include 2x2x5mm, 3x3x5mm and 5x5x5mm etc. with dual-band AR-coating for frequency-doubling 1064nm; 4x4x15mm, 5x5x15mm, 6x6x20mm, 7x7x15mm, 7x7x35mm, 8x8x20mm, 10x10x20mm etc. for OPO applications. 

2. AR-coatings and High Reflection coatings (HR-coatings) at other wavelengths are available upon request.

3. KTP's damage threshold only allows it to be used for medium and relatively low power lasers. Its polished surfaces need to be handled with care, avoid scratching and dust. Technical advice will be freely provided when the parameters of the user's laser and application are given.