Laser Crystals & Components - Page 3 of 6

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High Power Laser Polarizing Beamsplitter Cube

Material Options: Corning C7980-0F and BK7

Standard Wavelengths: 355nm, 515nm, 535nm, 808nm, 1030nm, and 1064nm

Custom Broadband Versions: Available between 700-900nm

Multi-Layer Dielectric Coating: Positioned at the interface of the two prism parts

Anti-Reflection Coating: Applied to the four faces where light enters and exits to mitigate reflection loss

Extinction Ratio: Standard 1000:1, customizable up to 10000:1

Adhesive-Free Optical Contact: Ensures high precision and minimizes wavefront distortion

High Damage Threshold: Exceptional LIDT of >15J/cm2@1064nm, 20ns, 20Hz

Reduced Thermal Absorption and Scattering Loss: Due to the high-precision polished interfaces and optical contact architecture.

Applications: Laser processing and manufacturing, Scientific research, Optical Communications, Medical & Biotechnology, Industrial testing and measurement, etc.

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High Precision Thin N-BK7, UV Fused Silica Windows

Double Surface Polishing Method:

Polishes both surfaces in one go.

Eliminates stress-release issues caused by bonding and detachment from pitch plates.

Significantly reduces surface flatness variations.

Outstanding Functionality:

Surface quality of 10/5 Scratch/Dig.

Parallelism of 10 arcseconds.

Minimum thickness down to 0.03mm.

Diameter down to 0.5mm.

Materials:

BK7: Suitable for visible to IR spectrum (350-2000nm).

UV Fused Silica: Ideal for UV wavelengths due to low absorption.

Quartz Crystals: Available for various applications.

Superior Optical and Mechanical Properties:

High mechanical strength and thermal stability.

Suitable for operation under diverse conditions.

Applications: Femtosecond Lasers, Spectroscopy, Optical Coherence Tomography (OCT), Laser Optics, Scientific Research, etc.

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KTA Crystals

Impressive Nonlinear Optical Properties: KTA Crystal has impressive nonlinear optical coefficients, making it highly efficient for nonlinear optical processes such as OPO.

Low Absorption in the 2.0-5.0 µm Region: The crystal exhibits minute absorption in the 2.0-5.0 µm wavelength region, allowing for efficient transmission of light in this spectral range.

Broad Angular and Temperature Bandwidth: KTA Crystal offers a broad angular and temperature bandwidth, providing stable performance over a wide range of operating conditions.

Low Dielectric Constants: The low dielectric constants of KTA Crystal make it suitable for applications requiring low electrical losses.

High Damage Threshold: Compared to KTP crystals, KTA crystals have a higher damage threshold due to their low ionic conductivities, making them more resistant to laser-induced damage.

Lower Absorption in the 3-4μm Wavelength Range: KTA Crystal exhibits lower absorption in the 3-4μm wavelength range compared to KTP, resulting in improved performance in applications within this spectral range.

Applications: Optical waveguide modulator, Scientific research, Industrial applications, etc.

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KTP Crystals

High Non-linear Coefficient: KTP crystals exhibit a high non-linear coefficient, making them ideal for nonlinear optical applications.

High Damage Threshold: These crystals have a high damage threshold, allowing them to withstand high-intensity laser beams without degradation.

Wide Acceptance Angle: KTP crystals offer a wide acceptance angle, enabling efficient coupling of laser beams.

Temperature-Stable Phase-Matching: The crystals exhibit substantial temperature-stable phase-matching characteristics, ensuring consistent performance across varying temperature conditions.

Non-Hygroscopicity: KTP crystals are non-hygroscopic, meaning they do not absorb moisture, which enhances their long-term stability and reliability.

Excellent Transmission in Visible and Near-IR Range: These crystals demonstrate excellent transmission in the visible and near-infrared wavelength range, making them suitable for a wide range of optical applications.

Applications: Second Harmonic Generation (SHG) of Nd:YAG Lasers, OPO/OPA/OPG, Electro-Optical Devices, etc.

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LBO Crystals

High Damage Threshold: LBO crystals have the highest damage threshold of all commonly used inorganic nonlinear optical crystals. For example, under a 1053nm laser with a pulse duration of 1.3 ns, the damage threshold can reach 18.9 GW/cm² . This property makes LBO crystals particularly suitable for high-power laser systems, where they can withstand higher laser energies without damage.

Wide Transmission Band: LBO crystals have a very wide optical transmission range, from the deep ultraviolet band (about 160 nm) to the infrared band (about 2600 nm) . This feature enables LBO crystals to be suitable for a wide range of wavelength laser systems to meet the needs of different fields.

High Optical Uniformity: The LBO crystal has good optical uniformity and no internal envelope, which helps to ensure the quality of the laser beam and reduce beam distortion and defocus. Its optical uniformity can reach δN≈10-6/cm

Larger effective nonlinearity coefficients: The effective SHG coefficient of LBO crystals is larger, about three times that of KDP crystals . This means that under the same conditions, the LBO crystal is able to achieve frequency conversion more efficiently and output higher power lasers.

Wide angle reception with small walk-out angle: LBO crystals have a wide reception angle and a small walk-away angle, which makes it easier to achieve phase matching and improve frequency conversion efficiency in nonlinear optical processes.

Thermal Stability: LBO crystals are known for their excellent thermal stability, being able to withstand large amounts of heat when processing high-power lasers without causing any significant loss of performance.

Applications: High Power Laser Systems, Nonlinear Optical Processes, Ultraviolet and deep ultraviolet lasers, etc.

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LiIO3 Crystals

High Nonlinear Optical Coefficient: LiIO3 crystals exhibit a high nonlinear optical coefficient, approximately 14 times that of quartz and an order of magnitude higher than KDP crystals. This makes them exceptional for nonlinear optical applications such as frequency doubling and parametric oscillation.

Broad Transparency Range: The crystal’s transparency range is wide, spanning from 280nm to 4000nm, covering most of the ultraviolet to mid-infrared spectral regions. This provides possibilities for its use in various optical systems.

Wide Phase-Matching Range: LiIO3 crystals offer a broad phase-matching range, enabling effective nonlinear optical conversion at multiple wavelengths.

Good Thermal Stability: Compared to some other nonlinear optical materials, LiIO3 crystals exhibit better thermal stability. This means their performance remains stable in environments with significant temperature variations.

Resistance to Optical Damage: Compared to certain other nonlinear optical crystals, LiIO3 crystals are less prone to optical damage. Optical damage can affect material performance and lifespan, and this characteristic of LiIO3 crystals results in a longer lifespan and more consistent performance.

Cost-Effective:Compared to other materials that may offer similar electro-optic properties, LiIO3 crystals are relatively inexpensive. This makes them more attractive for cost-sensitive applications.

Applications: Nonlinear Optical Applications, Electro-Optic Modulators, Laser Technology, Ultrasonic Transducers, Other Applications, etc.

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LiNbO3 and MgO:LiNbO3 Crystals

LiNbO3 Crystals:

Excellent medium for second harmonic generation (SHG) at wavelengths exceeding 1µm.

Suitable for optical parametric oscillation (OPO), optical parametric amplifiers (OPA), and tunable infrared output generation through difference frequency mixing (DFM).

Broad spectral transmission range of 0.3-5.2 microns, spanning visible to MWIR wavelengths.

High laser-induced damage threshold, suitable for high-power applications.

Large nonlinearities allow for higher effective nonlinear coefficients (deff) at lower power intensities.

MgO:LiNbO3 Crystals:

Higher optical damage threshold compared to LiNbO3 crystals, making them ideal for high-power applications.

Less prone to photorefractive damage, alleviating issues in frequency conversion.

Exhibits particular advantages for non-critical phase-matched (NCPM) second harmonic generation/doubling frequencies (SHG) at room temperature and sum-frequency generation (SFG).

Applications: Nonlinear Optics, High-Power Applications, Optical Processing, etc.

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LiNbO3 and MgO:LiNbO3 Pockels Cells

Electro-Optic Characteristics: Large electro-optic coefficients make these crystals ideal for Q-switches and phase modulators.

Non-Deliquescence: Maintains stability in different environments.

Transmission Range: Good transmission up to 4.0 µm.

Low Half Wave Voltage: Operates efficiently at lower voltages in the transverse mode compared to KD*P Pockels cells.

High Damage Threshold: Especially when doped with MgO, increasing resistance to damage.

Applications: Electro-Optical Modulators, Q-Switches, Phase Modulators, Pockels Cells, etc.

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LiNbO3 Crystals

Wide Transmission Spectrum: 350 nm to 5200 nm.

Birefringence: Due to its non-centrosymmetric crystal structure, allowing the splitting of incident light into two orthogonal polarization states.

Excellent Optical Properties: Low optical absorption and high damage threshold.

Piezoelectric and Electro-optic Properties: Ideal for various technological applications.

Low Production Cost: Economically feasible for large-scale manufacturing.

Applications: Polarizing Optics, Fiber Communication, Nonlinear Optics, Electro-optic Devices, etc.

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LiNbO3 Crystals for EO Applications

Stable Physical and Chemical Properties: LiNbO3 crystals exhibit stable physical and chemical properties, making them reliable for use in various applications.

Wide Light Transmission Range: With a light transmission range of 0.3-5μm, LiNbO3 crystals are suitable for a broad spectrum of optical applications.

Large Electro-Optic Coefficients: LiNbO3 crystals have large electro-optic coefficients, making them ideal for use in electro-optic devices such as Pockels cells and optical modulators.

Low Half-Wave Voltage and Zero Residual Birefringences: LiNbO3 crystals offer the advantage of low half-wave voltage and zero residual birefringences, making them suitable for precise control of optical properties.

Applications: Surface Acoustic Wave (SAW) Filters, Electro-Optic Devices, Optical Parametric Oscillators (OPO), Difference-Frequency Generation (DFG) and Second Harmonic Generation (SHG), etc.

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LiTaO3 Crystals

LiTaO₃ is a crystal material with excellent electro-optic, piezoelectric, and nonlinear optical, and is often used in optical communication, electro-optic modulators, lasers, and surface acoustic wave devices.

Main advantages: Strong electro-optic effect, High piezoelectric coefficient, Good thermal stability, Wide transmission range

Application field: Optical Communication, Precision Sensing, Aser Technology, Medical Devices, Acoustic Surface Wave

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Low Order Waveplates

Low Order Design:

Offers improved optical characteristics over common multiple-order waveplates.

Generates the desired phase delay with a surplus of several full wavelength phase shifts.

Thinner and less dependent on wavelength, ambient temperature, and the angle of incidence.

Pricing:

Low Order Waveplates are more affordable than zero-order waveplates.

Suitable for large-scale and low-cost production requirements.

Versatile Options:

Available in Low Order Half Waveplates for rotation of the polarization plane.

Available in Low Order Quarter Waveplates for conversion between linear polarization and circular polarization.

Wide Spectral Range:

Quartz Low Order Waveplates can be used for UV to NWIR spectral ranges.

MgF2 Waveplates can be used for wavelengths up to the MWIR (maximum 7000nm) region.

High Damage Threshold:

Robust single waveplate structure with a high damage threshold greater than 500MW/cm^2.

Enhanced Surface Coatings:

Surfaces are coated with AR coatings for improved performance.

Configured with Black Anodized mountings for easy integration.

Applications: Optics and Photonics Research, Laser Systems, Optical Instrumentation, Telecommunications, etc.

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MgF2 Crystals

Wide Transmission Spectrum: 110 nm to 7500 nm.

Outstanding VUV Transmittance: Over 80% at 170 nm.

High Resistance: Excellent resistance to thermal and mechanical shocks, and optical radiation.

Chemical Stability: Immune to corrosion and deliquescence.

Large Birefringence: Suitable for waveplate fabrication.

Applications: Excimer Lasers, Thermal Imaging, Fiber Communication, Thin Film Growth, etc.

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MgO:LiNbO3 Crystals for EO Applications

Improved resistance to photodamage: The resistance of lithium niobate crystals with high doped MgO (concentration is usually greater than 5mol%) is significantly higher than that of pure LiNbO3 crystals, and can even be increased by two orders of magnitude. This enables MgO:LiNbO3 crystals to maintain stable performance and prolong service life under high-energy laser irradiation.

Reduced photorefractive effect: MgO doping helps to reduce the photorefractive effect of LiNbO3 crystals, i.e., optically induced refractive index changes. This effect is particularly pronounced under blue or green continuous light irradiation, but can be effectively suppressed by doping with MgO, thereby improving the performance stability of the crystal.

Maintain excellent nonlinear optical performance: MgO:LiNbO3 crystals have similar effective nonlinear coefficients to pure LiNbO3 crystals, which means that they perform well in nonlinear optical processes and are suitable for EO applications such as frequency conversion and optical parametric oscillation.

Applications: Q Switch, Phase Modulator, Electro-optic modulators, Optical Parametric Oscillators (OPOs) and Amplifiers (OPAs), Infrared Applications, etc.

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MgO:PPLN Crystals and Waveguides

High Conversion Efficiency: Achieved through the use of a quasi-phase-matching (QPM) phenomenon, utilizing the higher nonlinear coefficient (d33) compared to birefringent phase matching.

Wide Transparent Spectrum: Covers 0.4 to 5 μm.

Enhanced Damage Threshold: 5% MgO doping significantly improves the crystal’s damage threshold.

Convenient Temperature Environment: QPM allows for efficient operation without stringent temperature controls.

Absence of Spatial Walk-Off: Ensures stable and efficient non-linear interactions.

Low Possibility of Photorefractive Issues: Reduces the likelihood of adverse effects during high-power operations.

Applications: Second Harmonic Generation (SHG), Sum Frequency Generation (SFG), Difference Frequency Generation (DFG), Optical Parametric Amplification (OPA), Optical Parametric Oscillation (OPO), Optical Parametric Generation (OPG), etc.

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MgO:PPLN Waveguide Laser Modules

Compact Design: Small-size laser modules for easy integration into larger systems.

High Output Power: Delivers powerful laser output suitable for various applications.

Superb Conversion Efficiencies: Efficiently converts primary laser light into desired wavelengths.

Versatile Wavelength Outputs: Available in standard output wavelengths and customizable options.

Applications: Scientific Research, Medical Devices, Industrial Manufacturing, Laser Displays, etc.

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