医用多波段激光器的研制及应用

Development and application of multiple-wavelength medical laser

目的研制便于临床使用的多波段医用激光器,以探讨其在生物医学领域中的应用。方法利用激光光学原理和激光光谱技术,选用Nd:YAG晶体作为工作物质,采用脉冲氙灯泵浦,再通过倍频输出四种波段的激光。结果激光光源为四波段激光组成,终端输出紫外370 nm激光,也可独立提供其他三波段激光,激光输出稳定,并可通过调节工作电压来控制激光的输出能量。结论多波段激光器在设计上结构布局合理,性能稳定,抗干扰性强,为研究激光在生物医学领域中的应用提供了一种有效的手段。

Objective: To produce the multiple-wavelength medical laser and explore its clinical application. Methods: According to the theory of laser optics and laser spectroscopy, Nd: YAG as the function material was chosen. Then it was pumped by pulsed xenon lamp, and four different wave-length lasers via different multiple crystals were output. Results: The beam was composed of four-wavelength lasers. The terminal output can provide 370 nm laser and also three other wavelength lasers independently. All these lasers are stable and can be adjusted by changing the functional voltage. Conclusions: The structure layout of the multiple-wavelength laser is rational on its design, which makes its performance stable and anti-interference strong. It provides an effective way for the application of laser instrument in the biomedical field.