Non Standard SHG@1064nm KTP Crystals

Potassium titanyl phosphate (KTP) is a very superior nonlinear crystal, with advantages due to its high nonlinearity, excellent mechanical stability, high optical quality, and transparency range from 350 nm to 4.5 µm. These properties determine the wide range of applications of KTP crystals as nonlinear media, including laboratory and medical systems, detectors, lidars, optical communications, and industrial laser systems.

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Catalog Number

ACMA00027389

Product Name

Non Standard SHG@1064nm KTP Crystals

Molecular Formula

KTiOPO4

Melting Point

1172℃

Width

4.5 mm

Height

4.5 mm

Length

9 mm

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Theta(Θ)

90°

Phi(Φ)

23.5°

Coating

AR/AR@1064+532 nm

Flatness

λ/6 @ 633 nm

Parallelism

< 20 arcsec

Perpendicularity

< 5 arcmin

Angle Tolerance

< 30 arcmin

ApertureTolerance

± 0.1 mm

Surface Quality

10/5 scratch & dig

ClearAperture

90% of full aperture

Crystal Structure

Orthorhombic, mm2

Lattice Parameters

a = 6.404, b = 10.616, c = 12.814, z = 8

Optical Symmetry

Positive biaxial (2VZ = 37.4° @0.5461 μm)

Space Group

Pna21

Density

3.01 g/cm³

Transparency Region

350~4400 nm

Absorption Coefficient

<0.1%/cm at 1064nm, <1%/cm at 532nm

Refractive Indices

at 1064 nm, nx = 1.7404, ny = 1.7479, nz = 1.8296 at 532 nm, nx = 1.7797, ny = 1.7897, nz = 1.8877

Phase Matching Range

0.984~3.4μm

Walk Off Angle

4 mrad

Angular Acceptance

Δθ = 55 mrad * cm Δφ = 10 mrad * cm

Thermal Acceptance

ΔT = 22 K * cm

NLO Coefficients

d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V d24=3.64pm/V, d15=1.91pm/V at 1.064 µm deff(II)≈ (d24-d15)sin2φsin2θ-(d15sin2φ+d24cos2φ)sinθ

Expansion Coefficient

(Thermal expansion coefficient) ax = 11×10^-6 °C^-1 ay = 9×10^-6 °C^-1 az = 0.6×10^-6 °C^-1

Thermal Conductivity

13 W/m*K

Damage Threshold

> 450MW/cm² (@1064nm 10ns, 10Hz)

Sellmeier Equations

nX²=3.0067+0.0395/(λ-0.04251)-0.01247 λ²; nY²=3.0319+0.04152/(λ²-0.04586)-0.01337 λ²; nZ²=3.3134+0.05694/(λ²-0.05941)-0.016713 λ²

Deliquescence

not deliquescence

Transition Temperature

936°C

Moh'sHardness

5

MSDS

COA

Spec Sheet

Features And Benefits

1. High nonlinearity 2. Non-hygroscopic crystals 3. Excellent mechanical stability 4. Wide transparency range from 350 nm to 4.5 µm 5. Wide range of angles and heat acceptance 6. Wide range of Type I and Type II non-critical phase matching

Application

1. Low and medium power frequency doubling of neodymium-doped lasers 2. KTP OPO and ZGP OPO in series for mid-infrared power generation

• Catalog Number: ACMA00027389
• Product Name: Non Standard SHG@1064nm KTP Crystals
• Molecular Formula: KTiOPO4
• Melting Point: 1172℃
• Width: 4.5 mm
• Height: 4.5 mm
• Length: 9 mm
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Theta(Θ): 90°
• Phi(Φ): 23.5°
• Coating: AR/AR@1064+532 nm
• Flatness: λ/6 @ 633 nm
• Parallelism: < 20 arcsec
• Perpendicularity: < 5 arcmin
• Angle Tolerance: < 30 arcmin
• ApertureTolerance: ± 0.1 mm
• Surface Quality: 10/5 scratch & dig
• ClearAperture: 90% of full aperture
• Crystal Structure: Orthorhombic, mm2
• Lattice Parameters: a = 6.404, b = 10.616, c = 12.814, z = 8
• Optical Symmetry: Positive biaxial (2VZ = 37.4° @0.5461 μm)
• Space Group: Pna21
• Density: 3.01 g/cm³
• Transparency Region: 350~4400 nm
• Absorption Coefficient: <0.1%/cm at 1064nm, <1%/cm at 532nm
• Refractive Indices: at 1064 nm, nx = 1.7404, ny = 1.7479, nz = 1.8296 at 532 nm, nx = 1.7797, ny = 1.7897, nz = 1.8877
• Phase Matching Range: 0.984~3.4μm
• Walk Off Angle: 4 mrad
• Angular Acceptance: Δθ = 55 mrad * cm Δφ = 10 mrad * cm
• Thermal Acceptance: ΔT = 22 K * cm
• NLO Coefficients: d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V d24=3.64pm/V, d15=1.91pm/V at 1.064 µm deff(II)≈ (d24-d15)sin2φsin2θ-(d15sin2φ+d24cos2φ)sinθ
• Expansion Coefficient: (Thermal expansion coefficient) ax = 11×10^-6 °C^-1 ay = 9×10^-6 °C^-1 az = 0.6×10^-6 °C^-1
• Thermal Conductivity: 13 W/m*K
• Damage Threshold: > 450MW/cm² (@1064nm 10ns, 10Hz)
• Sellmeier Equations: nX²=3.0067+0.0395/(λ-0.04251)-0.01247 λ²; nY²=3.0319+0.04152/(λ²-0.04586)-0.01337 λ²; nZ²=3.3134+0.05694/(λ²-0.05941)-0.016713 λ²
• Deliquescence: not deliquescence
• Transition Temperature: 936°C
• Moh'sHardness: 5