KTP Crystal

• High homogeneity
• Excellent internal quality
• Top quality of surface polishing

• Large block for various size (20x20x40mm, max length 60mm)
• Large nonlinear coefficient, high conversion efficiency
• Low insertion losses
• Very competitive price
• Mass production, quick delivery

SHG KTP crystal

• Low bulk absorption: 100ppm/cm at 1064nm

• High damage threshold of AR-coatings: >10J/cm² at 1064nm for 10ns pulses

• Available in GTR (grey-track resistance) KTP

OPO KTP crystal

• Guaranteed non-linear optical homogeneity

• High damage threshold of AR-coatings: >10J/cm² at 1064nm for 10ns pulses

• OPO mirror coatings on KTP parts (monolithic OPO) are available

Contact Now

Product Details

KTP (KTiOPO₄ ) is one of the most commonly used nonlinear optical materials which offers a range of unique features: high optical quality, broad transparency range, wide acceptance angle, small walk-off angle, and type I and II non-critical phase-matching (NCPM) in a wide wavelength range. KTP also has relatively high effective SHG coefficient (about 3 times higher than that of KDP) and fairly high optical damage threshold (>500 MW/cm²).

KTP crystal is regularly used for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at low or medium-power density. For example, KTP is used as a 1064nm/532nm harmonic generator (SHG). KTP is also a very good material as OPO gain medium for eye-safe emission.

Dimension Tolerance	± 0.1 mm
Angle Tolerance	< ± 0.25°
Flatness	< λ/8 @ 632.8 nm
Surface Quality	< 10/5 [S/D]
Parallelism	< 20”
Perpendicularity	≤ 5'
Chamfer	≤ 0.2 mm @ 45°
Transmitted Wavefront Distortion	< λ/8 @ 632.8 nm
Clear Aperture	> 90% central area
Coating	AR coating: R<0.2% @ 1064nm, R<0.5% @ 532nm [or HR coating, PR coating, upon request ]
Laser Damage Threshold	500 MW/cm² for 1064nm, 10ns, 10Hz (AR-coated)
* Products with special requirement upon request.