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Light Source Selection

Currently, there are two main types of laser light sources used in laser particle size analyzers on the market: helium-neon gas lasers and semiconductor solid-state lasers. After several years of development, semiconductor lasers have outperformed helium-neon lasers in all aspects when used in particle size analyzers. In the past, some particle size analyzer manufacturers blindly downgraded their products by using low-quality semiconductor lasers and directly compared semiconductor lasers with helium-neon lasers. Did you know that semiconductor lasers come with fiber-optic coupling technology? The beam quality of helium-neon lasers is significantly superior to that of helium-neon lasers equipped with beam expanders. Another interesting comparison is that helium-neon lasers only become stable once they reach a certain temperature—this is precisely why helium-neon lasers require a warm-up period. As long as the temperature remains constant and the power stays stable, the laser needs to maintain a constant temperature. The semiconductor lasers used by Shandong NKT are both temperature-stabilized and power-stabilized. During continuous operation lasting more than 72 hours, the fluctuations in laser quality inspection departments have been consistently within a range of no more than ±1%. In summary, semiconductor lasers exhibit excellent performance in every aspect and can meet the future demands of semiconductor light sources.

Currently, there are two main types of laser light sources used in particle size analyzers on the market: helium-neon gas lasers and semiconductor solid-state lasers. After several years of development, semiconductor lasers have outperformed helium-neon lasers in all aspects when used in particle size analyzers. In the past, some particle size analyzer manufacturers blindly downgraded their products by using low-quality semiconductor lasers and directly compared semiconductor lasers with helium-neon lasers. Did you know that semiconductor lasers come with fiber-optic coupling technology? The beam quality of helium-neon lasers is significantly superior to that of helium-neon lasers equipped with beam expanders. Another interesting comparison is that helium-neon lasers only become stable once they reach a certain temperature—this is precisely why helium-neon lasers require preheating. As long as the temperature remains constant and the power stays stable, the laser needs to maintain a constant temperature. The semiconductor lasers used by Shandong NKT are both temperature-stabilized and power-stabilized. During continuous operation for more than 72 hours, the fluctuation in laser quality inspection departments has been less than 1%—either upward or downward. In summary, semiconductor lasers demonstrate excellent performance in every aspect and can meet the future demands of semiconductor light sources.

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