Silica glass composition with lasing properties, an optical waveguide and a method of amplifying optical signals
    2.
    发明授权
    Silica glass composition with lasing properties, an optical waveguide and a method of amplifying optical signals 有权
    具有激光特性的二氧化硅玻璃组合物,光波导和放大光信号的方法

    公开(公告)号:US06628883B2

    公开(公告)日:2003-09-30

    申请号:US09805379

    申请日:2001-03-14

    IPC分类号: G02B600

    摘要: A thulium doped silica based glass capable of supporting lasing activity including Tm3+ as a lasing species disposed in a host composition, including oxides of germanium, silicon and tantalum. The preferred concentration of silicon in the host composition being between 15-25 weight percent. The preferred concentration of germanium in the host composition being between 0.1-1 weight percent. The preferred concentration of tantalum in the host composition is greater than 15 weight percent. The preferred concentration of thulium ions being in the range of 500-1000 parts per million by weight.

    摘要翻译: 能够支持包括Tm <3+>的激光活性的ium掺杂二氧化硅基玻璃作为设置在包含锗,硅和钽的氧化物的主体组合物中的激光物质。 主体组合物中硅的优选浓度为15-25重量%。 主体组合物中锗的优选浓度为0.1-1重量%。 主体组合物中钽的优选浓度大于15重量%。 铊离子的优选浓度在500-1000重量份的范围内。

    Optical amplifier and laser
    3.
    发明授权
    Optical amplifier and laser 失效
    光放大器和激光器

    公开(公告)号:US5617244A

    公开(公告)日:1997-04-01

    申请号:US513944

    申请日:1995-09-08

    摘要: A laser has a resonant cavity defined by a pair of mirrors butted to respective ends of a fluorozirconate optical fiber. The fiber has a numerical aperture of 0.205 and an LP.sub.11 mode cut-off of about 2.0 .mu.m. The fibre is co-doped with thulium ions to a concentration of about 0.1%, and with terbium ions to a concentration of about 1%. An optical pump source provides a pump signal at 775 nm which excites the thulium ions into the .sup.1 G.sub.4 energy level to provide lasing at about 475 nm. The pump source is preferably a high power semiconductor laser.

    摘要翻译: PCT No.PCT / GB94 / 00279 Sec。 371日期1995年9月8日 102(e)1995年9月8日PCT PCT 1994年2月11日PCT公布。 第WO94 / 22190号公报 日期1994年9月29日激光器具有由一对反射镜限定的谐振腔,对应于氟锆酸盐光纤的相应末端。 光纤的数值孔径为0.205,LP11模式截止值约为2.0μm。 纤维与ium离子共掺杂至约0.1%的浓度,铽离子浓度约为1%。 光泵浦源提供775nm的泵浦信号,激发ium离子进入1G4能级以提供大约475nm的激光。 泵浦源优选地是大功率半导体激光器。