Brewster-cut Nd:YLF at 1053nm, 1047nm-manufacture,factory,supplier from China

Research BackgroundLithium Yttrium Fluoride (LiYF4, YLF) crystal has many excellent properties such as low melting point, low phonon energy, small thermal lens effect, natural polarization, etc. It is a laser matrix material with excellent performance. YLF belongs to the tetragonal structure of scheelite, and the space group is I41/a.

Laser damage induced by microscopic defects in optical componentsNodule defect is a typical representative of microscopic defects, and it is one of the main discoveries in the study of laser damage to thin films in the 1990s. At present, a lot of research has been done on the electric field enhancement and damage characteristics of nodule defects and artificially implanted nodule defects. The damage mechanism of nodular defects has been deeply understood.The nodule defect is the main cause of damage to the fundamental frequency dielectric membrane element.

The variant of refractive indices with temperature is an essential crystal parameter in nonlinear optics. it is well known that the wavelength at which 90° phase-matched 2nd-harmonic era happens depends on temperature. the variation of this wavelength with temperature can be predicted with a understanding of the variant of the refractive indices with temperature and is cited on this paper because the tuning price.

1.5  ~ 4 μm laser crystals doped with Fe2+ Compared with Cr:ZnSe, Fe:ZnSe has a smaller band gap and is prone to produce thermally induced multi-phonon quenching, so both laser power and efficiency are low. In 1999, Adams et al. realized the tunable wavelength of 3.98-4.54 μm at low temperature for the first time in Fe:ZnSe, and obtained laser output with slope efficiency of 8.2%. Pumped by Er3+ doped or Cr:ZnSe @ 2.7 μm laser, 4.0 μm wavelength and 1 W level continuous laser output have been obtained at room temperature. In 2020, Pushkin et al.

As the source manufacturer of many kinds of function crystals and the leading producer of DKDP Pockels cell in China, WISOPTIC provides high cost-effective products to its customers worldwide and gains substantial trust from all of its business partners. Every year over 40% of WISOPTIC's products are exported to Europe, UK, North America, Korea, Israel, etc.Normally WISOPTIC takes parts in at least one of the important exhibitions in the industry of photonics and laser, such as Laser World of Photonics (Munich/Shanghai), SPIE Photonics West (San Francisco), KIMES (Seoul), PHOTONIX (To

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. 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.

Conclusion Lithium tantalate material has a large pyroelectric coefficient, high Curie temperature, small dielectric loss factor, low heat melt per unit volume, small relative dielectric constant, and stable performance. It is a good ferroelectric and piezoelectric material. It also has extraordinary properties. Because of its linear optical properties, lithium tantalate (LT crystal, www.wisoptic.com) has gradually become a popular material used in communications, electronics and other fields.

3 The main application of lithium tantalate crystal3.1 SAW Wave filterPeng et al. used ion etching to process lithium tantalate (LT) crystals to obtain a high fundamental frequency crystal resonator. They used this crystal resonator to design a high-frequency broadband filter, which improved the operating frequency and reliability of the filter and increased the number of The bandwidth of the filter ensures the high temperature stability and low insertion loss of the filter.

04 Theoretical study of thermal properties The above experiment shows that the BBO crystal (www.wisoptic.com) generates serious heat in the process of frequency quadrupling. It is known that the energy band gap of the BBO crystal is 6.56 eV, while the single photon energy of 266 nm and 532 nm lasers is 4.66 eV and 2.33 eV respectively. Theoretically, the crystal does not have single photon absorption of 266 nm and 532 nm lasers.