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Laser Protection Lens

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The laser window filter can effectively reduce the output loss of the laser optical pump cavity and output the laser beam of the working wavelength to the greatest extent. The main functions of the fiber laser protective lens are: to protect the focusing lens and prevent the splashes from sputtering on the lens and cause damage to the lens. Regular replacement of the protective lens can ensure the processing accuracy requirements. After the lens is coated with a high damage threshold (>15J/cm2) 1064nm antireflection coating, it can effectively increase the transmittance of the lens, reduce energy loss, and improve the quality of processed products. Laser windows are widely used in: laser cutting sheets, laser welding machines and other laser equipment. Generally speaking, the main function of the laser protection window is to block the splash of debris and prevent the splash from damaging the lens. Both sides of the laser protection window are AR-coated to reduce losses due to reflections. As a manufacturer of optical components, Jingsheng Optic can provide you with laser windows and other optical components made of various materials. The characteristics and applications of laser windows are as follows. characteristic • High transmittance (within a specific wavelength range) • Low absorption • Low wavefront distortion application • Laser cutting fiber protection sheet, laser dustproof lens • Laser welding, material processing Fiber protection sheet, laser dustproof lens • Laser Marking • Laser transmission or laser blocking UV fused silica windows are very suitable for laser light sources and high-power lasers such as fiber cutting machines, UV lithography technology, and marking machines. • Lens protection
Laser Scanning Lens

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Scanning mirrors are lightweight rectangular or polygonal mirrors for high-speed two-axis laser scanning systems. The mirror size of each piece is calculated according to the size of the laser beam. The reflector has a reflectivity of over 99.5%. Scanning mirrors are typically mounted on galvanometer motors for scanning purposes. For two-axis scanning mirrors, the Y mirror is generally larger in size than the X mirror, because the X mirror scans the Y mirror instead of directly scanning the object. The laser scanning galvanometer is used in the galvanometer system. The principle is that the expanded laser beam is incident on the X and Y galvanometers, and the reflection angle of the galvanometer is controlled by software, so that the two galvanometers are deflected along the X and Y axes respectively. So as to achieve the deflection of the laser beam. The base material of the galvanometer lens is usually K9 glass, fused silica and single crystal silicon, which is used inside the galvanometer system, mainly for laser marking, laser drilling, laser engraving, stage lighting control, etc.
Laser total mirror

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Quartz all-reflection mirrors are either plano-convex or plano-concave. They are mainly used as rear mirrors or folding mirrors in the laser resonator, or as a deflecting mirror outside the laser to transmit beams. The total mirror is generally used on the optical path of the marking machine, welding machine, and cutting machine, and forms a resonant cavity with the half mirror to generate laser light. K9 all-reflection mirrors are generally used in marking machines, and are generally single-sided coated. However, if the power of the marking machine is relatively high, such as 75W or 100W, the red light indicator may be burnt out by using a single-sided coating mirror. In this case, it is recommended that customers use a double-sided coating mirror. In addition, some customers require that the light transmittance of the red light indicator is relatively high, so it is recommended to use a blue-coated total mirror. High-power cutting machines are easy to damage because of their high power and high energy. The quartz all-reflective mirror has a high damage threshold and can withstand high-power laser energy, so it is an ideal all-reflective mirror.
Laser half mirror

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The output mirror is mainly used in the laser resonator to ensure the laser power and output mode. In the industrial CO2 laser, the output mirror returns part of the total laser energy to the resonator, and outputs the other part of the energy to the resonator for cutting, welding and heat treatment. The half mirrors are made of K9 material and quartz material, and the output rate is 10%, 15%, 20%, 40%, 50%, 60%, 70%, 80% and other specifications. Laser half mirrors, also called laser output mirrors, are generally used in laser welding machines, cutting machines and welding machines to form a resonant cavity with the full mirror to generate laser light.  Laser K9 half-mirrors are generally used in marking machines, generally using a 15% output rate. But there are also 10% and 20% output rates. With 15% output rate, the laser output power is relatively stable and strong, and the loss to the module is relatively small, so the service life of the module is relatively long. If the output rate is 10%, the output power is very stable, and the loss to the module is also the smallest, but the output power is not high, which is suitable for occasions where low power can meet the marking. With 20% output rate, the output power is very strong, which is suitable for the occasion of deep marking of metal, but the use of lenses with this output rate will also cause the greatest loss to the module, affecting the service life of the module, and the stability of light output is also reduced. to a certain impact. The high-power cutting machine has high power and high energy, and the general K9 laser half-mirror sheet is easily damaged because it is not resistant to high temperature. The quartz laser half mirror has a high damage threshold and can withstand high-power laser energy, so it is an ideal half mirror. Generally, the output rate of 50% is enough for cutting thin boards, but if you want to cut thicker boards, it is recommended to use 70%. Of course, if a lens with a higher output rate is used, the loss of the laser rod will be correspondingly larger, and the attenuation of the laser rod will be faster. Please use it after weighing.
Laser beam combiner

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The laser beam combiner is generally used to indicate the optical path, because the 10.6um laser is invisible, and in the actual marking process, we often need to know where the laser focusing point is, so as to determine whether the marking position is correct. Through the beam combiner, we use the visible 650nm red light emitted by the diode to combine with the 10.6um laser under the action of the beam combiner, so that the position pointed to by the 650nm red light is 10.6um The position of the laser, so as to achieve the purpose of using 650nm red light to indicate the 10.6um laser. Beam combiner, including CO2 beam combiner (also called carbon dioxide combiner) and YAG combiner (also called 1064nm combiner), beam combiner is a method used to transmit and reflect light of two wavelengths respectively into a single optical path. In laser processing, it is usually used to combine the pointing light into the optical path. The beam combiner mainly includes CO2 laser focusing mirror, YAG beam combiner lens, and UV beam combiner. 10.6μm/1064/532/355nm laser beam can be collimated by reflecting 650nm wavelength laser beam (visible light).

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