Surface treatment of halide glass articles
    1.
    发明授权
    Surface treatment of halide glass articles 失效
    卤化物玻璃制品的表面处理

    公开(公告)号:US5618326A

    公开(公告)日:1997-04-08

    申请号:US408193

    申请日:1995-03-22

    CPC classification number: C03C15/00 C03C23/0075

    Abstract: The surface quality of halide, preferably fluoride, articles, e.g. articles used in the preparation of halide fibres is improved by cleaning the surface with an aqueous etchant and thereafter removing the etchant by washing the surface with methanol. The aqueous etchant is preferably a solution which contains hydrochloric acid and zirconium oxychloride.

    Abstract translation: 卤化物的表面质量,优选氟化物,物品,例如, 通过用水性蚀刻剂清洁表面,然后通过用甲醇洗涤表面除去蚀刻剂来改善用于制备卤化物纤维的制品。 水性蚀刻剂优选为含有盐酸和氯氧化锆的溶液。

    Halide glass compositions and optical circuits and methods employing same
    3.
    发明授权
    Halide glass compositions and optical circuits and methods employing same 失效
    卤化物玻璃组合物和使用其的光学电路和方法

    公开(公告)号:US5560868A

    公开(公告)日:1996-10-01

    申请号:US436455

    申请日:1995-05-22

    CPC classification number: C03C4/0071 C03C3/325 Y10S501/904

    Abstract: Halide glasses having particular utility as hosts for praseodynmium in order to provide optical amplification by laser activity have a halide content provided as a small proportion, e.g., 1-10 percent, of choride with the remainder as fluoride. The metal content is similar to conventional ZBLAN glasses. The replacement of A1 by Y and In and/or the partial replacement of Na by Cs has synergistic benefits. PR.sup.3+ constitutes a good lasing species for amplifying telecommunication signals at 1300 nm using pumped radiation at 1020 nm.

    Abstract translation: PCT No.PCT / GB94 / 00345 Sec。 371日期:1995年5月22日 102(e)日期1995年5月22日PCT 1994年2月22日PCT PCT。 第WO94 / 19291号公报 日期1994年9月1日为了通过激光活性提供光学放大,具有特殊用途作为镨的主体的卤化物玻璃具有小比例的卤化物含量,例如1-10%的氯化物,余量为氟化物。 金属含量与常规ZBLAN眼镜类似。 通过Y和In替换A1和/或用Cs替代Na具有协同效益。 PR3 +构成了利用1020nm处的泵浦辐射在1300nm放大电信信号的良好的激光物质。

    Optical amplifier and laser
    4.
    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

    CPC classification number: H01S3/094003 H01S3/094092 H01S3/173

    Abstract: 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.

    Abstract translation: 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。

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