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Cheapest Price Sapphire - KTP Crystal – WISOPTIC

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Cheapest Price Sapphire - KTP Crystal – WISOPTIC Detail:

KTP (KTiOPO4 ) is one of the most commonly used nonlinear optical materials. For example, it’s regularly used for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at low or medium-power density. KTP is also widely used as OPO, EOM, optical wave-guide material, and in directional couplers.

KTP exhibits a 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).

Regular flux-grown KTP crystals suffer from blackening and efficiency breakdown (“grey-track”) when used during SHG process of 1064 nm at high average power levels and repetition rates above 1 kHz. For high average-power applications, WISOPTIC offer high grey track resistance (HGTR) KTP crystals grown by hydrothermal method. Such crystals have a lower initial IR absorption and are less affected by green light than regular KTP, thus avoid the problems of harmonic power instabilities, efficiency drops, crystal blackening, and beam distortion.

As one of the major KTP source suppliers in the whole international market, WISOPTIC has high capability of material selection, processing (polishing, coating), mass production, fast delivery and long guarantee period of quality KTP. It is also worth to mention that our price is quite reasonable.

Contact us for the best solution for your application of KTP crystals.

WISOPTIC Advantages - KTP

• High homogeneity

• Excellent internal quality

• Top quality of surface polishing

• Large block for various size (20x20x40mm3, max length 60mm)

• Large nonlinear coefficient, high conversion efficiency

• Low insertion losses

• Very competitive price

• Mass production, quick delivery

WISOPTIC Standard Specifications* - KTP

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.

KTP-2
KTP-1
ktp-4

DOWNLOAD Technical Data – KTP


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Main Features - KTP

• Efficient frequency conversion (1064nm SHG conversion efficiency is about 80%)

• Large nonlinear optical coefficients (15 times that of KDP)

• Wide angular bandwidth and small walk-off angle

• Broad temperature and spectral bandwidth

• Moisture free, no decomposition below 900°C, mechanically stable

• Low cost compare with BBO and LBO

• Gray-tracking at high power (regular KTP)

Primary Applications – KTP

• Frequency doubling (SHG) of Nd-doped lasers (particularly at low or medium-power density) for green/red light generation

• Frequency mixing (SFM) of Nd lasers and diode lasers for blue light generation

• Optical parametric sources (OPG, OPA, OPO) for 0.6-4.5µm tunable output

• E-O modulators, optical switches, directional couplers

• Optical waveguide for integrated NLO and E-O devices

Physical Properties – KTP

Chemical formula KTiOPO4
Crystal structure Orthorhombic
Point group mm2
Space group Pna21
Lattice constants a=12.814 Å, b=6.404 Å, c=10.616 Å
Density 3.02 g/cm3
Melting point 1149 °C
Curie temperature 939 °C
Mohs hardness 5
Thermal expansion coefficients ax=11×10-6/K, ay=9×10-6/K, az=0.6×10-6/K
Hygroscopicity non-hygroscopic

Optical Properties – KTP

Transparency region
(at “0” transmittance level)
350-4500 nm
Refractive indices nx ny nz
1064 nm 1.7386 1.7473 1.8282
532 nm 1.7780 1.7875 1.8875
Linear absorption coefficients
(@ 1064 nm)
α < 0.01 / cm

NLO coefficients (@1064nm)

d31=1.4 pm/V, d32=2.65 pm/V, d33=10.7 pm/V

Electro-optic coefficients

Low frequency

High frequency
r13 9.5 pm/V 8.8 pm/V
r23 15.7 pm/V 13.8 pm/V
r33 36.3 pm/V 35.0 pm/V
r42 9.3 pm/V 8.8 pm/V
r51 7.3 pm/V 6.9 pm/V
Phase matching range for:
Type 2 SHG in x-y plane 0.99÷1.08 μm
Type 2 SHG in x-z plane 1.1÷3.4 μm
Type 2, SHG@1064 nm, cut angle θ=90°, φ=23.5°
Walk-off angle 4 mrad
Angular acceptances Δθ=55 mrad·cm, Δφ=10 mrad·cm
Thermal acceptance ΔT=22 K·cm
Spectral acceptance Δν=0.56 nm·cm
SHG conversion efficiency 60~77%

Product detail pictures:

Cheapest Price Sapphire - KTP Crystal – WISOPTIC detail pictures

Cheapest Price Sapphire - KTP Crystal – WISOPTIC detail pictures

Cheapest Price Sapphire - KTP Crystal – WISOPTIC detail pictures

Cheapest Price Sapphire - KTP Crystal – WISOPTIC detail pictures

Cheapest Price Sapphire - KTP Crystal – WISOPTIC detail pictures


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Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for Cheapest Price Sapphire - KTP Crystal – WISOPTIC, The product will supply to all over the world, such as: Portugal, Oman, Georgia, Qualified R&D engineer will be there for your consultation service and we will try our best to meet your requirements. So please feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we will surely give you the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we will make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we are here to welcome your inquiries for any of our goods and service.
  • The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.
    5 Stars By Molly from Portugal - 2018.09.16 11:31
    This enterprise in the industry is strong and competitive, advancing with the times and develop sustainable, we are very pleased to have a opportunity to cooperate!
    5 Stars By Julie from Lithuania - 2018.12.30 10:21

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