MgO:LN Crystal-manufacture,factory,supplier from China

(Total 24 Products for MgO:LN Crystal)
Pure LiNbO3 (LN) is a good candidate for various optical devices, but has a major disadvantage due to its low threshold optical damage. MgO:LN (congruent compositions) is one of the possible solutions to deal with this problem. MgO doping has played an important role in LN and shown an increased threshold laser beam strength by 100 times. An interesting point is that every physical property of MgO:LN (e.g.
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Readily available stock of periodically poled MgO:LN crystals can be provided on short timescales to rapidly meet your application needs, providing the capability to efficiently generate laser light in a wide range of wavelengths.MgO:PPLN SHG crystals are available for a wide range of common pump laser wavelengths from 976 nm to 2100 nm, allowing generation of light between 488nm and 1050nm.MgO:PPLN OPO are available for 515nm and 1064nm pump sources, allowing continuous wavelength generation in a selection of ranges in the visible and IR.MgO: PPLN DFG Crystals are available for
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Tm:YAP crystal is one of the most important crystals for LD pumping 2μm laser. The anisotropic structure of Tm:YAP produces anisotropic emission cross section. Tm:YAP crystals with different orientations have different output wavelengths and operating forms for different functions. Compared with the physical and chemical properties of Tm:YAG, the 795nm pump absorption band of Tm:YAP matches the emission wavelength of commonly used high-power AlGaAs diodes better.
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The periodic polarized KTP (PPKTP) is a novel nonlinear optical material that can be customized to achieve all of the nonlinear applications required in the entire KTP crystal transmission band, without the phase matching limitations of conventional KTP. Moreover, the effective nonlinear coefficient of PPKTP is about 3 times higher than that of conventional KTP. In the nonlinear application of conventional KTP, the crystal must have a single domain structure, but PPKTP crystal has an artificially induced periodic domain structure.
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Main SpecificationsDimensionsLength3 ~ 150 mm (± 0.5 mm)Diameter2 ~ 10 mm (+0.00, -0.05 mm)Tm Concentration0.5 ~ 8.0 atm%Orientation[111] (± 1°)Wavefront Distortionλ/4 per inch @ 633 nmBarrel FinishFine ground (400#)End Surface Parallelism ≤ 10”Perpendicularity≤ 5’End Surface Flatnessλ/10 @ 633 nmEnd Surface Quality10-5 [s-d] (MIL-PRF-13830B)Chamfer0.15 ± 0.05 mm @ 45°CoatingAR (R<0.25% @ 2013 nm)
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LBO (LiB3O5) is a kind of non-linear optical crystal with good ultraviolet transmittance (210-2300 nm), high laser damage threshold and large effective frequency doubling coefficient (about 3 times of KDP crystal). So LBO is commonly used to produce high power second and third harmonic laser light, especially for ultraviolet lasers.LBO has large band gap and transparency region, high non-linear coupling, good chemical and mechanical properties.
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LBO (LiB3O5) is a kind of non-linear optical crystal with good ultraviolet transmittance (210-2300 nm), high laser damage threshold and large effective frequency doubling coefficient (about 3 times of KDP crystal). So LBO is commonly used to produce high power second and third harmonic laser light, especially for ultraviolet lasers.LBO has large band gap and transparency region, high non-linear coupling, good chemical and mechanical properties.
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LN Crystal is a multifunctional material that integrates properties of piezoelectric, ferroelectric, pyroelectric, nonlinear, electro-optical, photoelastic, etc. LiNbO3 has good thermal stability and chemical stability.As one of the most thoroughly characterized nonlinear optical materials, LiNbO3 is suitable for a variety of frequency conversion applications. For example, it is widely used as frequency doublers for wavelength >1 μm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices.
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KTA (Potassium Titanyle Arsenate, KTiOAsO4 ) is a nonlinear optical crystal similar to KTP in which atom P is replaced by As. It has good non-linear optical and electro-optical properties, e.g.
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KTA (Potassium Titanyle Arsenate, KTiOAsO4 ) is a nonlinear optical crystal similar to KTP in which atom P is replaced by As. It has good non-linear optical and electro-optical properties, e.g.
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Compared with congruent LN (cLN) crysal, the electro-optic coefficient, nonlinear optical coefficient, periodic polarization reversal voltage and applied photorefractive properties of stoichiometric LN (sLN) crystal are greatly improved. With such excellent physical properties and wide application prospects, sLN crystal has rapidly become a competitive optoelectronic material.sLN crystals are expected to be thermodynamically stable up to their melting temperature at 1170°C, while keeping a largerelectrical resistivity than cLN crystals by one order of magnitude at any temperature.
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Tm3+:YLF crystal has a high absorption peak around 792 nm which locates in the diode pumping range, and also has a cross-relaxation process that provides the possibility for each absorbed pump photon to produce to ions at higher laser energy level. Tm3+: YLF laser is very suitable as a pump source for Ho3+:YAG laser. This is due to the good overlap of the emission band of Tm3+:YLF and the absorption band of Ho3+:YAG, and the ability to produce a linearly polarized output.
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Nd:YVO4 (Neodymium-doped Yttrium Vanadate) is the most efficient laser crystal for diode-pumped solid-state lasers. Its good physical, optical and mechanical properties make Nd:YVO4 an excellent crystal for high power, stable and cost-effective diode-pumped solid-state lasers, especially for lasers with low or middle power density. Nd:YVO4  is a good choice for highly polarized output at 1342 nm, as the emission line is much stronger than those of its alternatives.
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Beta-Barium Borate (β-BBO) is an excellent nonlinear crystal with combination of a number of unique features: wide transparency region, broad phase-matching range, large nonlinear coefficient, high damage threshold, and excellent optical homogeneity. Therefore, β-BBO provides an attractive solution for various nonlinear optical applications such as OPA, OPCPA, OPO etc. β-BBO also has advantages of large thermal acceptance bandwidth, high damage threshold and small absorption, thus is very suitable for frequency conversion of high peak or average power laser radiation, e.g.
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Diffusion bonded crystal consists of two, three or more parts of crystals with different dopants or same dopant with different doping levels. This material is commonly made by bonding one laser crystal with one or two undoped crystals by precise optical contact and further processing under high temperature.
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Nd: YLF (Nd:LiYF4) is a laser material that acts as an alternative to Nd:YAG. It is very suitable for working in mode-locked state to make pulse lasers at wavelength 1053nm, 1047nm, 1313nm, 1324nm and 1370 nm. Nd:YLF has very small thermal lens effect (much smaller than YAG crystal), wide fluorescent line, and can generate linear-polarized beam. The relatively small stimulated emission cross section of Nd:YLF makes it suitable for continuous work with low threshold.
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Nd:YAG (Neodimium Doped Yttrium Aluminum Garnet) has been and continue to be the most widely used laser crystal for solid-state lasers.
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Beta-BBO crystal is an important nonlinear optical crystal with combination of unique optical properties, such as broad transmission and phase matching ranges, large nonlinear coefficient, high damage threshold and excellent optical homogeneity. The β-BBO crystal is an efficient material for the second, third and fourth harmonic generation of Nd:YAG lasers, and the best NLO material for the fifth harmonic generation at 213 nm.
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Nd:YLF is an excellent crystal that is very suitable for working in mode-locked mode to obtain short pulse laser. Nd:YLF has very small thermal lens effect (much smaller than YAG crystal), wide fluorescent line, and can generate linear-polarized beam. The relatively small stimulated emission cross section of Nd:YLF makes it suitable for continuous work with low threshold. Nd:YLF crystal has obtained important applications in inertial confinement laser fusion research projects.
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Diffusion Bonding Crystal consists of two, three or more parts with different types. They are often used to decrease thermal lens effect, that is conducive to the stability of lasers and high-power laser operation.The Crystals being bonded could be a laser crystal doped with laser-active ions, and its counterparts without dopants (e.g. YAG + Nd :YAG).
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RTP (RbTiOPO4) is an isomorph of KTP crystal. RTP has many advantages e.g. large nonlinear optical coefficient, large E-O coefficient, high damage threshold (about 1.8 times of KTP), high resistivity, high repetition rate, no hygroscopy and no induced piezo-electric effect with electrical signals up to 60 kHz. The transmission range of RTP is 350 nm to 4500 nm.RTP crystal is widely used in laser Q-switching system with high frequency repetition, high power and narrow pulse width.
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Beta-Barium Borate (β-BBO) is an excellent nonlinear crystal with combination of a number of unique features: wide transparency region, broad phase-matching range, large nonlinear coefficient, high damage threshold, and excellent optical homogeneity. Therefore, β-BBO provides an attractive solution for various nonlinear optical applications such as OPA, OPCPA, OPO etc.β-BBO also has advantages of large thermal acceptance bandwidth, high damage threshold and small absorption, thus is very suitable for frequency conversion of high peak or average power laser radiation, e.g.
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RTP (RbTiOPO4) is an isomorph of KTP crystal. RTP single crystals are grown in WISOPTIC by a slow-cooling flux method. RTP has many advantages e.g. large nonlinear optical coefficient, large E-O coefficient, high damage threshold (about 1.8 times of KTP), high resistivity, high repetition rate, no hygroscopy and no induced piezo-electric effect with electrical signals up to 60 kHz.
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Lithium Niobate (LiNbO3) is widely used  in fiber communication devices as birefringent crystal and used as electro-optic modulator and Q-switch for Nd:YAG, Nd:YLF and Ti:Sapphire lasers. It has good mechanical and physical properties and is ideal for optical polarizing components due to its wide transparency range and low cost. LiNbO3's applications for fiber communication include isolators, circulators, beam displacers, and other polarizing optics. The transverse modulation is mostly employed for LiNbO3 crystal.
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3 The main application of lithium tantalate crystal3.2 OscillatorAn oscillator is an energy conversion device that converts DC power into AC power with a certain frequency. This circuit is called an oscillation circuit. The oscillator achieves free oscillation through the mutual conversion between magnetic field energy and electric field energy.Oscillators are divided into RC oscillators, LC oscillators and crystal oscillators. The crystal oscillator has a piezoelectric effect, and the crystal will deform when a voltage is applied to the two poles of the wafer.
3. Experimental EquipmentThe overall device diagram of the frequency doubling experiment is shown in Figure 3(a). The 1064nm continuous light passes through a half-wave plate and is directly focused into the CPPLN crystal by a lens. The generated frequency doubling light passes through a 532nm transparent filter and is received and detected by a power meter. The self-built LD-pumped Nd:YVO4 continuous laser used in the experiment can reach a maximum output power of 22.53W.
4. Experimental Result and Analysis4.1 Comparison of frequency doubling efficiency of CPPLN and LBOThe CPPLN crystal (www.wisoptic.com) we designed has the maximum frequency doubling efficiency in the working range between 15-40℃, so the subsequent analysis will be carried out around this range. In the same fundamental frequency light power gradient, the effect of temperature change on the frequency doubling efficiency of CPPLN is shown in Figure 4(a).
2.2 Fabrication of lithium tantalate crystal with near stoichiometric ratioThe preparation of near-stoichiometric lithium tantalate (NSLT) crystals is difficult. The current methods mainly include: the double crucible method, the flux pulling method, the float zone method and the gas phase exchange equilibrium method. 2.2.1 The double crucible methodIn the double crucible method, the melt material needs to be continuously added to the crucible during the crystal preparation process to keep the melt composition unchanged.
2. Fabrication of Lithium Tantalate Crystal2.1 Fabrication of same composition lithium tantalate crystalThe same composition Lithium tantalate (CLT) crystals are often fabricated by mixing high-purity tantalum pentoxide with high-purity lithium carbonate at a stoichiometric ratio of 0.95:1 (molar ratio), and are prepared by the crucible pulling method. The quality of LiTaO3 crystal (www.wisoptic.com) is generally affected by factors such as raw material ratio, pulling speed, seed crystal quality, crucible shape and type.
2.3 Lithium tantalate single crystal filmAfter the 1980s, thin film preparation technology has developed rapidly. Currently, the commonly used preparation technologies of lithium tantalate single crystal (www.wisoptic.com) thin film mainly include chemical vapor deposition, physical vapor deposition, magnetron sputtering and sol-gel method.The chemical vapor deposition method synthesizes a thin film on a substrate through a chemical reaction and accurately controls the chemical composition of the product. It has the characteristics of low stress and good quality.
IntroductionLithium tantalate (LiTaO3, referred to as LT), as an excellent multifunctional crystal material, has good piezoelectric, electro-optical and pyroelectric properties, and is ideal for making surface acoustic wave (SAW) filters, resonators, tuners, Q switches and pyroelectric detectors. Devices made from LT crystal (www.wisoptic.com) are widely used in the automotive electronics, 5G communications and infrared detectors, and have broad market prospects.In 1965, Ballman used the pulling method to grow LT single crystal for the first time.
1.2 Near-stoichiometric Lithium Tantalate Crystal Most of the lithium tantalate crystals currently used are grown from melts with the same composition ratio, which is generally called the same composition lithium tantalate (CLT). However, large number of defects affect the physical properties of the CLT crystal, so researchers have conducted study on near-stoichiometric lithium tantalate (NSLT) with less material defects and better physical properties.
2. Theoretical analysis2.2 Design of CPPLN crystal structureIn order to achieve better temperature robustness and higher frequency doubling efficiency on the same CPPLN crystal, we designed the crystal structure of CPPLN. The schematic diagram of CPPLN for frequency doubling from 1064nm to 532nm is shown in Figure 1. The incident beam with fundamental frequency is set to be e-light, that is, its polarization direction is horizontal. At the same time, the output beam is also set to be e-light.
2. Theoretical analysis2.1 Temperature robustnessTemperature robustness refers to the stability of the frequency-doubled crystal with respect to temperature. Specifically, when the temperature fluctuates, the power of the frequency-doubled light will not be greatly affected. The influence of temperature on the frequency doubling process mainly comes from the influence on the phase mismatch.
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