【摘要】 磷酸盐玻璃由于其高增益系数、低非线性折射率、热光稳定而广泛用于各种激光器,尤其是高功率激光系统,以研究激光聚变和激光等离子体相互作用。为满足磷酸盐玻璃高挥发、低粘度、易失透等工艺性质,发展了密闭铂系统熔炼、特殊搅拌器、干燥气体鼓泡除水及流料浇注成形等制造技术,以制得低损耗、长荧光寿命、光学均匀的大尺寸毛坯。建立了一套熔炼设备,所获得的激光玻璃已用于直径7cm以下的棒状放大器和口径20cm以下的片状放大器。更多还原

【Abstract】 Phosphate glass has been widely used in lasers, especially in high power laser systems, due to its high gain coefficient, low n₂ and athermal properties. Recently, a few high power laser systems were built in the world for investigating fusion and laser interaction with plasma.In order to satisfy the special technological properties of phosphate glass, such as high volatility, low viscosity and high tendency towards devitrifieation, a series of preparation techniques, including hermetic platinum melting system with special stirrer, the removing water from glass melt and flow-casting process have been developed to produce low loss, long lifetime, optically homogeneous glass blanks of large dimension. A set of melting facility was built and the laser glass produced has been used in rod laser amplifiers, up to 70mm in diameter, and disk laser amplifiers, up to 200mm in aperture.更多还原