UV Filter Laser Head Cavity
This UV Filter Laser Head Cavity can filter ultraviolet light. It is made of Aluminum shell, reflective powder, and flow tube.
The reflective powder is Barium Sulfate. It has the characteristics of high reflectivity, uniform density, and environment.
• High light reflectivity: Ultra fine high light barium sulfate has a high light reflectivity, usually above 98%, which can effectively reflect light and improve protective effect.
• Density uniformity: The density uniformity of materials is crucial for the protective effect, and it is necessary to ensure the consistency of material density during the construction process to ensure effective blocking of light.
• Particle size control: The particles of ultrafine high gloss barium sulfate are required to be small and uniform, generally controlled below tens of microns, which puts high demands on the preparation process of the material.
• Environmental performance: The environmental performance of materials must comply with relevant standards and not produce harmful substances to ensure construction safety and environmental protection.
The flow tube is made of Samarium doped glass, which can effectively filter the UV light, reducing the thermal effects.
• The samarium doped glass is new type of dual end cutoff focusing cavity glass, which is used in laser emitter components. The glass is processed through optical cold processing to form a focusing cavity (also called as laser flow tube). After processing, the chemical strengthening is necessary to increase the laser flow tube strength. The function of the focusing cavity in the laser module is to concentrate the light energy emitted by the Krypton lamp onto the laser rod, which is then transformed into a 1064nm continuous laser through the energy level transition of the laser rod.
• The absorption of ultraviolet light in a krypton lamp by a laser rod will generate color centers, making the laser unable to function properly; In addition, the radiation of 1064nm light in the Krypton lamp consumes a portion of the particles in the upper level of the laser, reducing the output of the laser, known as the pump out effect.
• The samarium doped glass can absorb ultraviolet light generated by krypton lamps, as well as 1064nm near-infrared light. It can effectively improve the reliability, lifespan, and laser radiation efficiency of laser components.
