Transparent glass-ceramics
    4.
    发明授权
    Transparent glass-ceramics 失效
    透明玻璃陶瓷

    公开(公告)号:US5537505A

    公开(公告)日:1996-07-16

    申请号:US431045

    申请日:1995-04-28

    摘要: The present invention is directed to the preparation of two groups of transparent glass-ceramics exhibiting high optical clarity and containing essentially only one crystal phase. The first group consists essentially, in cation percent, of______________________________________ SiO.sub.2 20-35 PbF.sub.2 19-23 AlO.sub.1.5 10-20 YF.sub.3 3-7, CdF.sub.2 19-34 ______________________________________ and the second group consists essentially, in cation percent, of______________________________________ SiO.sub.2 20-35 PbF.sub.2 15-25 AlO.sub.1.5 10-20 YF.sub.3 3-7 CdF.sub.2 21-31 ZnF.sub.2 3-7. ______________________________________ These glass-ceramics may be used to fabricate optical waveguide fibers. Also when doped with certain rare earth elements, notably Pr, Er, and Dy, the glass-ceramic materials may be used to fabricate optical amplifiers and lasers.

    摘要翻译: 本发明涉及两组透明玻璃陶瓷的制备,它们具有高光学透明度并基本上仅含有一个结晶相。 第一组基本上由阳离子百分比组成的-SiO 2 20-35 PbF 2 19-23 -AlO1.5 10-20 YF3 3-7,-CdF2 19-34,第二组基本上由阳离子百分比组成的 -SiO 2 20-35 PbF2 15-25 -AlO1.5 10-20 YF3 3-7 -CdF2 21-31 ZnF2 3-7。 - 这些玻璃陶瓷可用于制造光波导纤维。 此外,当掺杂某些稀土元素,特别是Pr,Er和Dy时,玻璃 - 陶瓷材料可用于制造光放大器和激光器。

    Rare earth-doped, stabilized cadmium halide glasses
    5.
    发明授权
    Rare earth-doped, stabilized cadmium halide glasses 失效
    稀土掺杂,稳定的镉卤化物玻璃

    公开(公告)号:US5346865A

    公开(公告)日:1994-09-13

    申请号:US86048

    申请日:1993-07-06

    摘要: This invention is directed to the production of transparent glasses exhibiting transmission far into the infrared regime of the radiation spectrum. The glasses consist essentially, in mole percent, of 42-55% CdF.sub.2 and/or CdCl.sub.2, 30-40% NaF and/or NaCl, 2-20% total of BaF.sub.2 and/or BaCl.sub.2 +KF and/or KCl, consisting of 0-15% BaF.sub.2 and/or BaCl.sub.2 and 0-7% KF and/or KCl, 1-12% total of at least one stabilizing metal halide selected from the group LiX, BeX.sub.2, MgX.sub.2, MnX.sub.2, PbX.sub.2, TlX, COX.sub.2, and ZnX.sub.2, and 0,005-0.5% REX.sub.3, wherein Re is at least one rare earth metal selected from the lanthanide series of rare earth metals and X is at least one halide selected from the group consisting of fluoride, chloride, and bromide. The preferred glasses contain at least 2% each of BaF.sub.2 and/or BaCl.sub.2 and KF and/or KCl.

    摘要翻译: 本发明涉及透明玻璃的生产,该透明玻璃显示出远离辐射光谱的红外区域的传播。 玻璃基本上以摩尔百分数计含42-55%的CdF2和/或CdCl2,30-40%的NaF和/或NaCl,2-20%的BaF 2和/或BaCl 2 + KF和/或KCl,由 0-15%BaF 2和/或BaCl 2和0-7%KF和/或KCl,1-12%的至少一种选自LiX,BeX2,MgX2,MnX2,PbX2,TlX,COX2, 和ZnX2和0.005-0.5%的REX3,其中Re是选自镧系稀土金属中的至少一种稀土金属,X是选自氟化物,氯化物和溴化物中的至少一种卤化物。 优选的玻璃含有至少2%的BaF 2和/或BaCl 2和KF和/或KCl。

    Optical fiber bendable coupler/switch device
    8.
    发明授权
    Optical fiber bendable coupler/switch device 失效
    光纤弯曲耦合器/开关装置

    公开(公告)号:US5353363A

    公开(公告)日:1994-10-04

    申请号:US143753

    申请日:1993-11-01

    IPC分类号: G02B6/28 G02B6/35 G02B6/24

    摘要: A 1.times.N fiber optic switch is disclosed for selectively coupling light from a first fiber to any one of a plurality of output fibers. The switch includes a coupler in which the first optical fiber and the plurality of optical fibers are elongated in a narrowed coupling region. The coupling region can be bent in various directions to cause the radius of curvature of the input fiber to differ from that of at least one of the output fibers, whereby light propagating in the input fiber can be coupled to only one of the output fibers or to more than one of those fibers.

    摘要翻译: 公开了一种1xN光纤开关,用于将来自第一光纤的光选择性地耦合到多个输出光纤中的任何一个。 开关包括耦合器,其中第一光纤和多个光纤在窄耦合区域中伸长。 耦合区域可以沿各个方向弯曲,以使输入光纤的曲率半径与至少一个输出光纤的曲率半径不同,由此在输入光纤中传播的光可以仅耦合到输出光纤中的一个或 到多于一种纤维。

    Non-adiabatically-tapered connector
    9.
    发明授权
    Non-adiabatically-tapered connector 失效
    非绝热锥形连接器

    公开(公告)号:US4877300A

    公开(公告)日:1989-10-31

    申请号:US261270

    申请日:1988-10-24

    IPC分类号: G02B6/14 G02B6/26 G02B6/42

    CPC分类号: G02B6/4202 G02B6/262

    摘要: Disclosed is a mode field modifier which can be used in a fiber-to-fiber connector or a source-to-fiber connector. In a downtaper-type mode field modifier embodiment, the modifier comprises a modifier core of refractive index n.sub.1 surrounded by first and second cladding layers having refractive indices n.sub.2 and n.sub.3, respectively. In an uptaper-type mode field modifier embodiment, the modifier comprises a modifier core of refractive index n.sub.1 surrounded by a cladding layer having a refractive index n.sub.2. The refractive indices are such that n.sub.1 >n.sub.2 >n.sub.3. In both embodiments, there is a nonadiabatic taper intermediate the ends of the mode field modifier, whereby a substantial amount of mode coupling occurs therein.

    Large effective area waveguide fiber
    10.
    发明授权
    Large effective area waveguide fiber 有权
    大面积有效面积的光纤

    公开(公告)号:US06493495B1

    公开(公告)日:2002-12-10

    申请号:US09610020

    申请日:2000-07-05

    IPC分类号: G02B618

    摘要: A single mode optical waveguide fiber having a segmented core designed to provide a large effective area for light transmission. The large effective area reduces waveguide fiber non-linearities. The inventive waveguide is thus suited for transmission of high power signals over long distances. Embodiments of the inventive single mode waveguide including five core segments are given. The large effective area is achieved with essentially no degradation in optical or mechanical performance of the waveguide.

    摘要翻译: 一种单模光纤,其具有被设计成为光透射提供大的有效面积的分段芯。 大的有效面积降低了波导纤维的非线性。 因此,本发明的波导适合于长距离传输高功率信号。给出了包括五个核心段的本发明单模波导的实施例。 在波导的光学或机械性能基本上没有劣化的情况下实现了大的有效面积。