Manufacturer of Caf2 - KTP / GTR-KTP Crystal – WISOPTIC
Manufacturer of Caf2 - KTP / GTR-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 - GTR-KTP
Dimensions:As large as 10×10×15mm
Extinction Ratio:>25dB
Optical Transparency Range:500~2500nm
Laser-induced Damage Threshold:>600MW/cm2 @1064nm,10ns,10Hz, AR coated
Insertion Loss:<1.0% @1064nm
Operation Temperature:-40℃~+65℃ (as high as +80℃)
Frequency Range:as high as 4MHz
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. |
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:
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Now we have highly developed devices. Our items are exported towards the USA, the UK and so on, enjoying a great popularity among the customers for Manufacturer of Caf2 - KTP / GTR-KTP Crystal – WISOPTIC, The product will supply to all over the world, such as: Swansea, Atlanta, Paraguay, Qualified R&D engineer might be there for your consultation service and we will try our best to meet your requirements. So you should 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 are going to surely present you with the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we'll make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we're here to welcome your inquiries for any of our merchandise and service.
By Naomi from New Orleans - 2017.07.28 15:46
This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
By Cheryl from Morocco - 2018.03.03 13:09