Laser Crystals & Components - Page 5 of 5

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Silicon (Si) Mirrors for CO2 Lasers

Broad Spectral Range:

Inherent transmission range of 1 – 25 µm.

Suitable for CO2 laser wavelengths (10.6 µm).

Cost-Effective:

Affordable compared to other reflective mirror materials.

Ideal for various industrial and research applications.

Thermal Endurance:

Decent thermal stability and endurance.

Suitable for lower power CO2 lasers.

Reflective Gold Coating:

Ensures high reflectance (>99%) for unpolarized radiation.

Introduces some vulnerability, recommending use in clean conditions.

Applications: Laser Cutting Machines, Laser Engraving Machines, Laser Marking Machines, Flat Fold Mirrors, Rear Reflectors and Beam Benders, etc.

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Slow Axis Collimators

Beam Shaping: SAC-Lenses reshape the elliptical beam emitted by diode lasers into a more circular or symmetric profile, making it easier to focus or collimate further downstream in optical instruments.

Improved Beam Quality: By reducing the divergence angle along the slow axis, SAC-Lenses enhance the overall quality of the laser output, resulting in a high-quality, symmetric beam profile.

Beam Collimation: In addition to shaping the beam profile, SAC-Lenses collimate the beam along the slow axis, ensuring that the beams remain parallel and maintaining beam integrity over long distances.

Divergence Control: SAC-Lenses effectively control the overall divergence of the laser beam by reducing divergence along the slow axis, leading to better focusing and increased range for applications such as laser cutting or engraving.

Applications: Laser Materials Processing, Medical Applications, Optical Instrumentation, Laser Engraving and Marking, etc.

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Super Achromatic Waveplates

Extremely wide wavelength range:

Super Achromatic Waveplates are capable of providing virtually complete wavelength-independent phase delay over a very wide wavelength range. This is one of its most significant advantages.

High Phase Delay Stability:

Thanks to the use of a variety of birefringent materials such as quartz, magnesium fluoride, and sapphire, and through precise optical design, superachromatic waveplates are able to provide a flat and stable phase delay over a wide spectral range.

High transmittance:

These waveplates are typically coated with a broadband coating to increase the transmittance of the laser or other light source and reduce energy loss.

Low Dispersion:

By eliminating dispersion, superachromatic waveplates are able to provide consistent polarization conversion over a wide wavelength band, which is especially important for applications that require high-precision polarization control.

High-precision machining:

The manufacturing process of superachromatic waveplates often requires high-precision machining and assembly techniques to ensure that the performance of the waveplates meets the design requirements.

Applications: Laser system, Spectral analysis, Optical Communication, Optical Instruments, Scientific research, etc.

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TeO2 Crystals for AO application

Exceptional Optical Properties:

TeO2 crystals exhibit high transmittance across a broad spectral range, including visible and infrared wavelengths.

They possess a large nonlinear optical coefficient, making them suitable for various nonlinear optical effects in AO systems.

The crystals’ birefringence characteristics enable precise control over the polarization state of light, enhancing the performance of AO devices.

Superior Thermal Stability:

TeO2 crystals have a high thermal conductivity, allowing for efficient heat dissipation and maintaining stable optical properties even at elevated temperatures.

Their low thermal expansion coefficient ensures minimal changes in optical properties over a wide temperature range, crucial for AO applications requiring high stability.

Mechanical Robustness:

TeO2 crystals are known for their excellent mechanical strength and durability, enabling them to withstand high stress and pressure without degradation.

This robustness makes them suitable for use in AO systems subject to mechanical vibrations or shocks.

Versatile AO Applications:

TeO2 crystals find extensive use in AO systems for applications such as laser beam shaping, wavefront correction, and phase modulation.

They are employed in deformable mirrors, spatial light modulators, and other AO components to enhance the precision and efficiency of optical systems.

Customizable Solutions:

Kingwin Optics offers TeO2 crystals in various sizes, shapes, and orientations to meet specific AO application requirements.

The crystals can be coated with anti-reflection coatings or other functional layers to further optimize their performance in AO systems.

Applications: Scientific research, Laser Technology, Astronomical observations, Medical Equipment, National Defense Science and Technology, Industrial Manufacturing, etc.

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TGG Crystals

Large Verdet Constant: Approximately 40 Rad T^-1 m^-1, indicating strong magneto-optical effects.

Superb Thermal Properties: Thermal conductivity of 7.4 W/m/K, providing excellent thermal management.

Low Optical Losses: Less than 0.1% per centimeter, ensuring minimal light attenuation.

High Damage Threshold: Can withstand laser-induced damage thresholds greater than 1 GW/cm².

Better Performance: Outperforms terbium-doped glasses in high average power fiber lasers due to greater Verdet constant and lower optical losses.

Applications: Faraday Rotators, Magneto-Optical Modulators, Circulators, Current Measuring Transducers, etc.

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Ti:Sapphire Crystals

Exceptional Optical Properties:

Broad Tunability: Ti:Sapphire lasers can be tuned over a wide spectral range, typically from 660 nm to 1.2 μm, making them versatile for a variety of experiments and applications.

High Gain: The material exhibits high optical gain, enabling efficient laser operation at moderate pump powers.

Ultrashort Pulse Generation: Ti:Sapphire is a favorite material for generating femtosecond pulses, crucial for time-resolved spectroscopy and nonlinear optics research.

Outstanding Thermal Properties:

High Thermal Conductivity: With excellent heat dissipation capabilities, Ti:Sapphire crystals can withstand high-power operation without significant thermal lensing effects.

Stable Temperature Performance: Its stable temperature characteristics ensure consistent performance even under demanding conditions.

Excellent Mechanical Durability:

High Hardness: Ti:Sapphire boasts a Mohs hardness of 9, making it highly resistant to scratching and wear.

Chemical Inertness: It is chemically stable, resisting corrosion from most acids and alkalis, ensuring long-term reliability.

Biocompatibility:

Ti:Sapphire is biocompatible, making it suitable for medical applications such as laser surgery and photodynamic therapy.

Applications: Scientific Research, Industrial Applications, Medical Applications, etc.

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True Zero Order Waveplates

Superior broadband performance.

Extremely miniature thickness for precise retardation.

Excellent retardation consistency with changes in wavelength, ambient temperature, and incident angle.

Applications: Optical communication systems, Quantum computing and cryptography, Laser systems and high-energy applications, Polarization-sensitive imaging and detection, Biomedical imaging and diagnostics, etc.

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TSAG Crystals

Higher Performance: TSAG crystals exhibit stronger functionalities compared to TGG crystals.

Verdet Constants: High Verdet constants indicate the material’s strong ability to induce Faraday rotation.

Thermal Stability: Low thermal-induced birefringence ensures stable performance under varying thermal conditions.

Mechanical Strength: TSAG crystals have excellent mechanical characteristics, making them suitable for high-power lasers.

Wide Transmission Range: TSAG crystals have a broad transmission range from 400nm to 1600nm, covering both visible (VIS) and near-infrared (NIR) zones.

Compact Designs: The material properties allow for the design of compact and efficient optical devices.

Applications: Faraday Optical Isolators, Faraday Rotators and Circulators, Scintillators, etc.

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Ultrafast-Enhanced Silver Mirrors

Enhanced Reflectance: The silver coating enhanced with a dielectric coating provides increased reflectance between 600-1000nm, making it ideal for Ti: Sapphire lasers.

Low GDD: The mirrors offer low GDD, minimizing phase distortion and ensuring that ultrashort optical pulses sustain their peak power.

Superior Optical Properties: The UV Fused Silica substrates provide excellent optical properties, mechanical strength, and low thermal expansion.

Cost-Effective: Ultrafast-Enhanced Silver Mirrors are a cost-effective alternative to conventional metallic or dielectric mirrors, offering similar performance without the effects of widening.

Versatile: Kingwin Optics offers stocked and custom ultrafast-enhanced silver mirrors with low GDD, high flatness, and precision, providing versatility for various applications.

Applications: Ti: Sapphire Lasers, Optical Instrumentation, Research and Development, Industrial Applications, etc.

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V3+:YAG Crystals

Novel Material for Q-switching: V3+:YAG crystals are specifically designed for saturable absorber passive Q-switching, enhancing laser performance.

Excellent Ground State Absorption (GSA): With a cross-section of 7×10-18 cm2 near 1.3 μm, V3+:YAG crystals ensure efficient absorption.

Negligible Excited State Absorption (ESA): Enables Q-switching of 1.3 μm and 1.44 μm Nd-lasers without intracavity focusing, compatible with both flash-lamp and diode-laser pumping.

Good Chemical Stability and Thermal Conductivity: V3+:YAG crystals exhibit robust chemical stability and effective heat dissipation.

UV Resistance and High Damage Threshold: The material is resistant to UV radiation and can withstand high energy levels, ensuring durability.

Application Areas: Laser Technology, Nd-Laser Optimization, Medical and Industrial Applications, Scientific Research, Telecommunications, etc.

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Wollaston Prism

High Polarization Purity: Wollaston Prism is capable of efficiently separating incident light into two orthogonally polarized beams of light (commonly referred to as o-light and e-light) with extremely high polarization purity. This means that the polarization state of the outgoing light is very pure and contains almost no cross-polarization components.

Wide spectral range: Due to its material properties, Wollaston Prism can work over a wide spectral range, covering different wavelengths from ultraviolet to infrared. This makes it suitable for a wide range of optical systems and applications.

High transmittance:The well-designed Wollaston Prism has a high transmittance that minimizes the loss of light as it passes through the prism and improves the efficiency of light utilization.

Structurally stable: Wollaston Prism is usually formed by bonding two orthogonal birefringence crystal prisms, which are relatively stable and able to maintain stable performance in a variety of environments.

Adjustable angle: The Wollaston Prism available in the market has different divergence angles of the outgoing light, and users can choose the appropriate divergence angle according to their actual needs to meet different application needs.

Applications: Spectral analysis, Laser Technology, Optical Measurements, Microscopy Techniques, Other areas, etc.

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Yb:YAG Crystal

Main Advantages: Efficient Laser Emission, High Optical Quality, Broad Absorption Bandwidth, Thermal Stability, Versatile Applications, Compatibility with Pump Sources

Applications: Yb:YAG crystal is a highly versatile laser material with numerous applications in high-power lasers, scientific research, medical procedures, optical sensing and detection, thin-disk lasers, defense and security, and materials processing and microfabrication.

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YCOB Crystals

Outstanding Nonlinear Optical Properties: YCOB exhibits a nonlinear optical coefficient equivalent to that of BBO and LBO crystals, making it highly effective for nonlinear optical applications.

Large Aperture and High Damage Threshold: With a sizable aperture and a high damage threshold in the femtosecond regime (approximately 2000-2500 GW/cm2), YCOB is capable of handling high-power laser applications.

Wide Acceptance Angle and Small Dispersion Angle: YCOB’s wide acceptance angle and small dispersion angle make it ideal for precise and efficient laser beam manipulation.

Stable Thermal and Chemical Properties: YCOB boasts stable thermal and chemical properties, with significantly less thermal expansion than LBO, and non-deliquescent characteristics, ensuring long-term reliability in various environments.

Excellent Machining Properties: YCOB crystals are easy to machine, allowing for precise shaping and sizing to meet specific application requirements.

Applications: High-Power Lasers, Parametric Nonlinear Processing, Optical Frequency Multiplication, etc.

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YVO4 Crystals

Transparency Range: 400 nm to 5000 nm.

Birefringence: Significant birefringence, useful for polarization applications.

Mechanical Robustness: Superior mechanical strength and durability.

Chemical Stability: High resistance to chemical reactions and degradation.

Thermal Stability: Excellent performance across a wide temperature range.

Applications: Fiber Optic Isolators and Circulators, Beam Displacers, Glan Polarizers, Other Polarizing Optics, etc.

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ZGP (ZnGeP2) Crystals

Large Nonlinear Susceptibility: ZnGeP2 crystals have a large nonlinear susceptibility (d36 ~ 75 pm/V), which is approximately 160 times that of KDP (potassium dihydrogen phosphate). This high nonlinear susceptibility makes ZGP crystals highly efficient for nonlinear optical processes.

Wide Transparency Range: ZGP crystals are optically transparent over the 0.74–12 μm wavelength region. This wide transparency range allows for versatile use in various optical systems and applications.

High Laser Damage Threshold: ZnGeP2 crystals have a relatively high laser damage threshold, making them suitable for high-power laser systems and applications that require intense laser beams.

Tunable Laser Output: ZGP crystals are recommendable for producing tunable laser output in the near-infrared spectrum. This capability makes them valuable for applications that require precise control over laser wavelength.

Applications: Laser Technology, Optical Parametric Oscillator (OPO), Optical Parameter Generation/Amplification (OPG/OPA), Frequency Conversion, Scientific research, Medical & Biological Imaging, etc.

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ZnSe Focusing Lenses for CO2 Lasers

Versatility:

Plano-Convex Lenses: Conventional choice for general applications.

Meniscus Lenses: Ideal for larger beam diameters and higher power densities due to lower spherical aberrations.

Material Benefits:

ZnSe (Zinc Selenide):Wide transmission range (600-16000nm). Low absorption at 1060nm, suitable for high-power CO2 lasers.

GaAs (Gallium Arsenide):

Higher hardness and greater thermal endurance.

Recommended for dirty or high-splatter environments.

Quality and Coating:

Made from CVD ZnSe grown in the USA, featuring low bulk losses, high resistance to thermal shock, and stable properties.

AR coatings ensure high transmission (T≥99.5%@10.6μm), high damage threshold, durability, and wiping resistance.

Minimum-damage polishing technique enhances performance and longevity.

Custom Options:

Off-the-shelf specifications: Diameters 12.0-38.1mm, Central Thicknesses 2.6-7.87mm, Focal Lengths 38.1-190.5mm with 10.6μm AR Coatings.

Custom specifications: Maximum diameter up to 200mm for higher power handling.

Design services available for optimized mirror design and cost-effectiveness.

Applications: Laser Processing, High-Power Laser Systems, Versatile Industrial Use, etc.

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