Nonlinear Crystals - KingwinOptics

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BBO Crystals

High nonlinear optical coefficient: In the NIR, visible, and ultraviolet spectra, the SHG coefficient is 3-6 times higher than that of ADP and KDP.

Generalized light transmission: from 189nm to 3500nm, covering UV to far-infrared wavelengths.

High Damage Threshold: Up to 15GW/cm² at 1064nm, 200% higher than KDP.

Excellent temperature stability: Maintains optical properties over a wide temperature range.

Excellent optical homogeneity: δN ≈ 10-6/cm, ensuring high quality light output.

Availability of large single wafers: Meet the needs of large optical systems.

Applications: Harmonic Generation Optics, Parametric Oscillators (OPOs) and Amplifiers (OPAs), Quantum Optics, Electro-Optical Applications, High Power Laser Systems, etc.

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BIBO Crystals

Large Effective Nonlinear Coefficient: BIBO crystal exhibits a nonlinear coefficient that is 3.5-4 times higher than that of LBO and 1.5-2 times higher than that of BBO. This makes BIBO an efficient material for nonlinear optical processes, particularly second harmonic generation (SHG).

High Damage Threshold: BIBO crystal has a high damage threshold, allowing it to withstand high laser power without suffering damage. This characteristic makes BIBO suitable for use in high-power laser systems.

Inertness to Moisture: BIBO crystal is inert to moisture, which means it does not degrade or lose its optical properties when exposed to humidity. This makes BIBO a more stable and reliable option for optical applications in various environments.

Applications: High power laser system, Optical Parametric Oscillator (OPO), Optical Parametric Amplifier (OPA), Frequency Conversion, Laser processing and material handling, Scientific research and development, etc.

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DKDP (KD*P) Crystals

Potassium dideuterium phosphate (DKDP or KD*P) crystals are considered to be one of the most common industrial-grade nonlinear opticalNLO) materials. These crystals are distinguished by their deuterium content and exhibit enhanced performance characteristics compared to conventional KDP crystals, especially in high-power laser.

Feature:Extended transmission wavelength range, Elimination of parasitic oscillation, Excellent harmonic generation, High electro-optic coefficient

Application:High-power lasers, Optical parametric oscillator (OPO), Optical modulator, Nonlinear optical elements

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HGTR KTP Crystals

Enhanced Gray Track Resistance: HGTR KTP crystals exhibit significantly higher gray track resistance compared to regular flux-grown or hydrothermally grown KTP crystals. This makes them ideal for high-power applications where gray track damage could otherwise cause serious interruptions.

Optimized for High-Power Laser Systems: The crystals are optimized for use in high-power laser systems, providing efficient conversion and durability. They demonstrate no detrimental absorption for high repetition/high power SHG at 1064nm or OPO applications pumped by a 532nm light source.

Elevated Overall Performance: HGTR KTP crystals offer elevated overall performance compared to regular flux-grown KTP crystals. They provide a reliable and durable solution for demanding applications, ensuring consistent performance and minimal damage over time

Applications: Laser Technology and Photonics, Scientific Research, Medical Applications, 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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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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RTP Crystals

Higher Damage Threshold: RTP crystals have a damage threshold about 1.8 times the magnitude of that of KTP crystals, making them suitable for high-power applications.

High Resistivity: RTP crystals exhibit high resistivity, ensuring stable performance in various operating conditions.

Low Absorption Loss: The low absorption loss of RTP crystals minimizes signal attenuation, resulting in higher efficiency.

Non-hygroscopicity: RTP crystals are non-hygroscopic, meaning they do not absorb moisture, which can lead to degradation in performance.

Absence of Induced Piezo-electric Ringing: RTP crystals do not exhibit induced piezo-electric ringing with frequencies of electrical input signals up to 60 kHz, ensuring clean and stable operation.

Broad Transmission Range: The transmission range of RTP crystals is 350nm to 4500nm, spanning from the ultraviolet to the mid-infrared region.

Miniature Walk-off Angle: When generating yellow lasers, RTP crystals have a miniature walk-off angle, which is beneficial for laser applications.

Highly Efficient Media for High Repetition Rates: RTP crystals are highly efficient media for lasers with high repetition rates, making them ideal for pulsed laser applications.

Applications: Nonlinear Optics, High-Power Laser Systems, Pulsed Laser Applications, Electro-Optical Applications, Scientific Research and Development, etc.

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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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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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