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    • 1. 发明授权
    • Laser oscillator
    • 激光振荡器
    • US6034979A
    • 2000-03-07
    • US66411
    • 1998-05-04
    • Norio KarubeAkio IkesueYoichi Sato
    • Norio KarubeAkio IkesueYoichi Sato
    • H01S3/14H01S3/20
    • H01S3/14H01S3/20
    • A laser oscillator which uses a granular laser gain medium to secure a large gain volume and is capable of suppressing resonator loss caused by granular-boundary scattering. A suspension (1), which is obtained by dispersing a number of dielectric grains doped with a luminous element in fluid having refractive index matched with that of the dielectric grains, is filled in a cell (6). The cell (6) filled with the suspension (1) is disposed in an optical resonator constituted by a rear mirror (3) and an output mirror (4). When the cell (6) is irradiated with excitation light (2), the dielectric grains in the suspension (1) are subjected to laser pumping and a laser beam (5) is output. Since the dielectric grains coexist with the refractive index-matched fluid, the granular-boundary scattering is suppressed, making it possible to provide a low-loss optical resonator. Dielectric grains with a slightly greater diameter may alternatively be distributed in filling liquid which is refractive index-matched fluid.
    • PCT No.PCT / JP97 / 03104 Sec。 371日期:1998年5月4日 102(e)日期1998年5月4日PCT 1997年9月4日PCT公布。 出版物WO98 / 10495 日期1998年3月12日一种激光振荡器,其使用粒状激光增益介质来确保大的增益体积,并且能够抑制由颗粒边界散射引起的谐振器损耗。 通过将掺杂有发光元件的多个介电粒子分散在具有与电介质晶粒的折射率匹配的折射率的流体中而获得的悬浮液(1)被填充到电池(6)中。 填充有悬架(1)的电池(6)设置在由后反射镜(3)和输出镜(4)构成的光谐振器中。 当用激发光(2)照射电池(6)时,对悬浮液(1)中的电介质晶粒进行激光泵浦并输出激光束(5)。 由于电介质颗粒与折射率匹配流体共存,所以粒度边界散射被抑制,从而可以提供低损耗光学谐振器。 具有稍大直径的电介质颗粒可替代地分布在作为折射率匹配流体的填充液体中。