【作者】 余文峰； 朱松林； 程祖海；

【Author】 Yu Wenfeng Zhu Songlin Cheng Zuhai (The State Key Laboratory of Laser Technology, Huazhong University. Of Science & Technology)

【机构】 华中理工大学激光技术国家重点实验室；

【摘要】 针对大功率低腔压激光器研制了利用喷流引射原理形成气压密封的引射式窗口,并进行了密封性能实验和光束质量测试。对现有模型的实验研究结果表明,单纯使用喷流引射作用,可使密封压力接0.1atm。而且引射式气流的引入未使光轴中心发生漂移或偏转,输出光强分布也基本无变化。当辅以抽真空时,密封压力可降至66.65Pa,而且可方便地将密封压力稳定在任意值。更多还原

【Abstract】 For high power laser of low cavity pressure, a new type of aerodynamic window using jet injection is researched and produced. Experimental study shows that for a φ 6. 5mm free aperture, by only using jet injection the sealing pressure can achieve about 0.1 atmosphere and the flow of jet injection has no considerable influence on the intensity distribution of the laser beam. As both jet injection and suction are used the searing pressure can drop down till 66. 5 Pa. The experiment also shows that the sealing pressure can be easily adjusted and stabilized.更多还原