KTP Crystal for SHG Frequency Doubling Nd:YAG Lasers 1064nm to 532nm
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On FindLight:
since 2018
Description
Potassium Titanyl Phosphate (KTiOPO4), commonly known as KTP, is a remarkable nonlinear optical material that stands out due to its high nonlinear coefficient and stable physical properties. This crystal is highly sought after in optical systems for its exceptional ability to double the frequency of the 1064 nm output from Nd:YAG lasers, resulting in a 532 nm laser output. The superior qualities of KTP also make it an excellent choice for electro-optic modulation and optical parametric generation, making it a versatile component in advanced optical applications. With over 20 years of experience in the growth and processing of KTP crystals, Crystech ensures the delivery of high-quality and efficient crystals. The crystal growth process has been meticulously optimized to enhance quality, while the specialized coating process is designed to offer a relatively higher damage threshold. This dedication to quality and precision underscores CRYSTECH's commitment to providing reliable and effective solutions for optical systems. KTP crystals are known for their orthorhombic crystal structure and colorless appearance, with a melting point around 1172°C and a Mohs hardness of 5. They are non-hygroscopic, ensuring chemical and mechanical stability, and have a thermal conductivity of 0.13 W/(cm*K). The crystals exhibit a wide transmitting range from 350 nm to 4500 nm, making them highly adaptable for various optical applications. The nonlinear optical coefficients and electro-optic properties of KTP further enhance its utility in complex optical systems. With a phase matching angle of θ=90° and φ=23.5° for type II SHG of a Nd:YAG laser at 1064 nm, KTP crystals offer precise and efficient performance. These attributes, combined with CRYSTECH's stringent processing standards, make KTP crystals a preferred choice for professionals in the field of optics.
KTP Crystal for SHG Frequency Doubling Nd:YAG Lasers 1064nm to 532nm
Specifications |
|
|---|---|
| Crystal Type: | KTP (KTiOPO4) |
| Phase Mathcing Type: | Type II, Type I |
| Mounting: | Unmounted, Mounted |
| Width: | 2 mm |
| Height: | 2 mm |
| Length: | 1 mm |
| Flatness: | <= Lambda/10 |
| Surface Quality (Scratch-Dig): | 10-5 |
| AR Coating: | Not Coated, Both Sides, One side |
| Crystal Structure: | Orthorhombic, space group Pna21, point group mm2 |
| Cell Parameters: | a=6.404Å, b=10.616Å, c=12.814Å, Z=8 |
| Melting Point: | Around 1172°C |
| Mohs Hardness: | 5 |
| Density: | 3.01 g/cm³ |
| Color: | colorless |
| Hygroscopic Susceptibility: | no |
| Thermal Conductivity: | 0.13 W/(cm*K) |
| Thermo-optic Coefficient Dnx/dT: | 1.1x10⁻⁵/°C |
| Thermo-optic Coefficient Dny/dT: | 1.3x10⁻⁵/°C |
| Thermo-optic Coefficient Dnz/dT: | 1.6x10⁻⁵/°C |
| Absorption Coefficient @1064nm: | <0.1%/cm |
| Absorption Coefficient @532nm: | <1%/cm |
| Transmitting Range: | 350nm-4500nm |
| SHG Phase Matchable Range: | 497～1800nm (Type II) |
| Refractive Indices Nx @1064nm: | 1.7377 |
| Refractive Indices Ny @1064nm: | 1.7453 |
| Refractive Indices Nz @1064nm: | 1.8297 |
| Refractive Indices Nx @532nm: | 1.7780 |
| Refractive Indices Ny @532nm: | 1.7886 |
| Refractive Indices Nz @532nm: | 1.8887 |
| Nonlinear Optical Coefficient D31: | 6.5 pm/V |
| Nonlinear Optical Coefficient D32: | 5 pm/V |
| Nonlinear Optical Coefficient D33: | 13.7 pm/V |
| Nonlinear Optical Coefficient D24: | 7.6 pm/V |
| Nonlinear Optical Coefficient D15: | 6.1 pm/V |
| Phase Matching Angle θ: | 90° |
| Phase Matching Angle φ: | 23.5° |
| Temperature Acceptance: | 24°C·cm |
| Spectral Acceptance: | 0.56nm·cm |
Features
- High Nonlinear Coefficient: KTP crystals exhibit a large nonlinear coefficient, making them ideal for frequency doubling and other nonlinear optical applications.
- Wide Angular Bandwidth and Small Walk-off Angle: These properties ensure efficient phase matching and minimal beam distortion.
- Broad Temperature and Spectral Bandwidth: KTP crystals maintain performance across a wide range of temperatures and wavelengths.
- Non-Hygroscopic and Chemically Stable: KTP is resistant to moisture and chemical degradation, ensuring long-term reliability.
- Superior for Electro-Optic Modulation: KTP's properties make it excellent for applications involving electro-optic modulation.
- Optimized Crystal Growth and Coating: CRYSTECH's 20+ years of experience ensures high-quality crystals with a high damage threshold.
- Applications: Ideal for SHG, SFG of Nd Lasers, Optical Parametric Generation (OPG, OPA, OPO).
- Physical Properties: Orthorhombic structure, melting point around 1172°C, Mohs hardness of 5, and a density of 3.01 g/cm³.
- Optical Properties: Transmitting range of 350nm-4500nm, SHG phase matchable range of 497-1800nm (Type II).
- Processing Indicators: High precision in size tolerance, flatness, and parallelism, with a high laser-induced damage threshold.
Applications
- SHG, SFG of Nd Lasers
- Optical Parametric Generation (OPG, OPA, OPO)
Frequently Asked Questions
KTP (Potassium Titanyl Phosphate) is an excellent nonlinear optical material with a high nonlinear coefficient and stable physical properties. It is commonly used as a frequency doubler for Nd:YAG lasers to generate 532 nm laser light.
KTP crystals are primarily used for second harmonic generation (SHG) and sum frequency generation (SFG) of Nd lasers, as well as for optical parametric generation (OPG, OPA, OPO).
KTP crystals have a transmitting range of 350 nm to 4500 nm, a SHG phase matchable range of 497 to 1800 nm (Type II), and specific refractive indices at 1064 nm and 532 nm. They also have a large nonlinear coefficient and broad temperature and spectral bandwidth.
The damage threshold of KTP crystals is greater than 1 GW/cm² at 1064 nm and greater than 0.3 GW/cm² at 532 nm, both measured with 10 ns pulses at 10 Hz with AR coating.
KTP crystals are non-hygroscopic, chemically stable, and mechanically stable, making them suitable for various optical applications.
KTP crystals have an orthorhombic crystal structure, a melting point around 1172°C, a Mohs hardness of 5, and a density of 3.01 g/cm³. They are colorless and have a thermal conductivity of 0.13 W/(cm*K).
KTP crystals have size tolerances of W±0.1mm×H±0.1mm×L+0.5/-0.1mm, a clear aperture of ≥90%, surface quality of 10/5 according to MIL-PRF-13830B, flatness of ≤λ/10@633nm, and other specifications ensuring high-quality processing.