All glass leakage channel fibers and devices using them
    1.
    发明授权
    All glass leakage channel fibers and devices using them 有权
    所有玻璃泄漏通道纤维和使用它们的设备

    公开(公告)号:US08849083B1

    公开(公告)日:2014-09-30

    申请号:US13458945

    申请日:2012-04-27

    IPC分类号: G02B6/032 G02B6/02

    摘要: The present invention relates generally to optical waveguides, and more particularly to optical fibers suitable for use with high optical energies, and to devices using them. One aspect of the invention is an optical fiber having a cross-sectional profile comprising a base glass material; a first ring of first low refractive index glass features disposed in the base glass material; and a second ring of second low refractive index glass features disposed in the base glass material outside of and substantially concentric with the first ring, wherein the optical fiber has a loss of less than about 0.7 dB/m for the fundamental mode and a loss greater than about 10 dB/m for all other modes in a coiled configuration having a coil diameter in the range of about 20 cm to about 200 cm.

    摘要翻译: 本发明一般涉及光波导,更具体地涉及适用于高光能的光纤以及使用它们的器件。 本发明的一个方面是具有包括基础玻璃材料的横截面轮廓的光纤; 设置在基底玻璃材料中的第一低折射率玻璃特征的第一环; 以及第二低折射率玻璃特征环,其设置在第一环外部并基本上与第一环同心的基础玻璃材料中,其中光纤对于基模具有小于约0.7dB / m的损耗,并且损耗更大 对于线圈直径在约20cm至约200cm范围内的盘绕构型中的所有其它模式而言,约10dB / m。

    Method and apparatus for providing light having a selected polarization with an optical fiber
    2.
    发明授权
    Method and apparatus for providing light having a selected polarization with an optical fiber 有权
    用光纤提供具有所选极化的光的方法和装置

    公开(公告)号:US07724422B2

    公开(公告)日:2010-05-25

    申请号:US10597592

    申请日:2005-01-31

    IPC分类号: H01S3/00

    摘要: Optical apparatus (110, 500, 600, 800, 1000) for providing light having a selected linear polarization having a polarization ratio, the apparatus (110, 500, 600, 800, 1000) comprising a length of optical fiber (120, 504, 604, 804, 1001) comprising a rare earth for providing light having a first wavelength responsive to receiving pump light having a second wavelength that is different than said first wavelength, wherein if the length of optical fiber (120, 504, 604, 804, 1004) were placed in a first position between the length of fiber (120, 504, 604, 804, 1004) is substantially linearly oriented (20) the fiber (120, 504, 604, 804, 1004) could propagate at the first wavelength a fundamental mode and a plurality of higher order modes and the apparatus (110, 500, 600, 800, 1000) could provide light having a first polarization ratio for the selected linear polarization and an M2 parameter, and wherein the length of fiber (120, 504, 604, 804, 1004) is positioned in a second position that increases the bend loss of the fiber relative to the first position such that, responsive to the increased bend loss, the apparatus (110, 500, 600, 800, 1000) can provide light having a reduced M2 parameter as well as a second polarization ratio for the selected polarization that is increased relative to the first polarization ratio, the increase being at least 6 dB greater than the first polarization ratio, and wherein when the length of fiber (120, 504, 604, 804, 1004) is in the second position the apparatus (110, 500, 600, 800, 1000) can provide a slope efficiency that is at least 50% of the ratio of the second wavelength to the first wavelength.

    摘要翻译: 用于提供具有偏振比的所选线性偏振光的光学装置(110,500,600,800,1000),所述装置(110,500,600,800,1000)包括一段长度的光纤(120,504, 包括稀土,用于提供响应于接收具有不同于所述第一波长的第二波长的泵浦光的具有第一波长的光,其中如果光纤的长度(120,504,604,801, 1004)被放置在光纤(120,504,604,804,1004)的长度之间的第一位置,基本上线性地定向(20),光纤(120,504,604,804,1004)可以在第一波长处传播 基本模式和多个高阶模式,并且所述装置(110,500,600,800,1000)可以提供具有用于所选择的线性偏振的第一偏振比的光和M2参数,并且其中光纤的长度(120 ,504,604,804,1004)定位在第二位置, 折射纤维相对于第一位置的弯曲损耗,使得响应于增加的弯曲损耗,装置(110,500,600,800,1000)可以提供具有减小的M2参数以及第二偏振比的光 对于相对于第一偏振比增加的所选偏振,增加比第一偏振比大至少6dB,并且其中当光纤(120,504,604,804,1004)的长度在第二偏振比 定位装置(110,500,600,800,1000)可以提供至少为第二波长与第一波长的比率的50%的斜率效率。

    Apparatus and method for thermally tuning an optical amplifier
    4.
    发明授权
    Apparatus and method for thermally tuning an optical amplifier 失效
    用于热调谐光放大器的装置和方法

    公开(公告)号:US06694080B2

    公开(公告)日:2004-02-17

    申请号:US09961115

    申请日:2001-09-20

    IPC分类号: G02B616

    摘要: An apparatus and method for thermally tuning an optical amplifier comprises an optical waveguide doped with a fluorescent material, a thermal device for either heating or cooling the optical waveguide, and a pump light for exciting the fluorescent material. The apparatus shapes, shifts, and/or flattens the gain curves of the doped optical amplifier. Thulium doped fiber is cooled to shift the gain curve into the C-band. Erbium doped fiber is heated to flatten the gain curve in the C-band and is cooled to shift the gain curve above the L-band. The apparatus similarly shapes the gain curves of other fluorescent materials. The thermal device comprises three types of optical cooling devices. The apparatus is a component in communications systems, lasers, medical lasers and the like. The method comprises either heating or cooling optical waveguides doped with fluorescent materials to achieve the desired shaping, shifting, and flattening of the gain curves.

    摘要翻译: 用于热调谐光放大器的装置和方法包括掺杂有荧光材料的光波导,用于加热或冷却光波导的热装置,以及用于激发荧光材料的泵浦光。 该装置对掺杂光放大器的增益曲线进行成形,移动和/或变平。 ium掺杂的光纤被冷却以将增益曲线移动到C波段。 铒掺杂光纤被加热以使C波段的增益曲线变平,并被冷却以将增益曲线移动到L波段之上。 该装置类似地形成其他荧光材料的增益曲线。 热敏装置包括三种类型的光学冷却装置。 该装置是通信系统,激光器,医疗激光器等中的组件。 该方法包括加热或冷却掺杂有荧光材料的光波导,以实现增益曲线的期望的成形,偏移和平坦化。

    Transparent gallate glass-ceramics
    5.
    发明授权
    Transparent gallate glass-ceramics 有权
    透明无盖玻璃陶瓷

    公开(公告)号:US06632758B2

    公开(公告)日:2003-10-14

    申请号:US10139705

    申请日:2002-05-02

    IPC分类号: C03C1002

    CPC分类号: C03C10/0018

    摘要: Disclosed is a substantially transparent glass-ceramic ceramic, and a method for making a glass-ceramic, exhibiting an aluminogallate spinel crystal phase and having a glass-ceramic composition that lies within the SiO2—Ga2O3—Al2O3—K2O—Na2O— system and particularly consisting essentially, in weight percent on an oxide basis, of 25-55% SiO2, 9-50% Ga2O3, 7-33% Al2O3, 0-20% K2O, 0-15% Na2O, 0-6 Li2O and 5-30% K2O+Na2O, the glass ceramic microstructure containing a crystal phase comprising at least 5%, by weight, of aluminogallate spinel crystals. Another aspect disclosed is optical element selected from the group consisting of an optical fiber, a gain or laser medium, and an amplifier component, a saturable absorber, with the element comprising a transparent glass-ceramic of the same composition and containing a crystallinity of at least about 5% by weight of aluminogallate spinel crystals.

    摘要翻译: 公开了一种基本上透明的玻璃 - 陶瓷陶瓷,以及制造玻璃 - 陶瓷的方法,其表现出铝酸铝尖晶石晶相,并且具有位于SiO -Ga 2 O 3 -Al 2 2 -K 2 O-Na 2 特别是基于氧化物的重量百分比为25-55%的SiO 2,9-50%的Ga PDAT> 2 / 3, ,7-33%Al 2 O 3 0-20%K 2 O,0-15%Na 2和5-30%K 2 O + Na 2 PDAT> O,所述玻璃陶瓷微结构含有包含至少5重量%的铝酸铝尖晶石晶体的结晶相。 所公开的另一方面是从由光纤,增益或激光介质和放大器组件,可饱和吸收器组成的组中选择的光学元件,该元件包括相同组成的透明玻璃陶瓷,并且含有结晶度为 至少约5重量%的铝酸铝尖晶石晶体。

    Thulium-doped germanate glass composition and device for optical amplification
    6.
    发明授权
    Thulium-doped germanate glass composition and device for optical amplification 失效
    碲掺杂锗酸盐玻璃组合物和光学放大装置

    公开(公告)号:US06589895B2

    公开(公告)日:2003-07-08

    申请号:US09897294

    申请日:2001-06-29

    IPC分类号: C03C412

    摘要: A Tm-doped germanate glass composition comprises GeO2 having a concentration of at least 20 mole percent, Tm2O3 having a concentration of about 0.001 mole percent to about 2 mole percent, and Ga2O3, having a concentration of about 2 mole percent to about 40 mole percent. The composition can further include an alkaline earth metal compound selected from the group consisting of MgO, CaO, SrO, BaO, BaF2, MgF2, CaF2, SrF2, BaCl2, MgCl2, CaCl2, SrCl2, BaBr2, MgBr2, CaBr2, SrBr2, and combinations thereof, and having a non-zero concentration of less than about 40 mole percent. The composition can further include an alkali metal compound selected from the group consisting of Li2O, Na2O, K2O, Rb2O, Cs2O, Li2F2, Na2F2, K2F2, Rb2F2, Cs2F2, Li2Cl2, Na2Cl2, K2Cl2, Rb2Cl2, Cs2Cl2, Li2Br2, Na2Br2, K2Br2, Rb2Br2, Cs2Br2 and combinations thereof, and having a non-zero concentration of less than about 20 mole percent. The emission bandwidth of the composition in the 1450 nm to 1530 nm range can be varied on the basis of one or more composition ratios. A Tm-doped germanate optical amplifier can amplify optical signals in the S-band region of the electromagnetic spectrum.

    摘要翻译: Tm掺杂的锗酸盐玻璃组合物包含浓度为至少20摩尔%的GeO 2,浓度为约0.001摩尔%至约2摩尔%的Tm 2 O 3和浓度为约2摩尔%至约40摩尔%的Ga 2 O 3 。 所述组合物还可以包含选自MgO,CaO,SrO,BaO,BaF 2,MgF 2,CaF 2,SrF 2,BaCl 2,MgCl 2,CaCl 2,SrCl 2,BaBr 2,MgBr 2,CaBr 2,SrBr 2和组合的碱土金属化合物 并且具有小于约40摩尔%的非零浓度。 所述组合物可以进一步包括选自Li 2 O,Na 2 O,K 2 O,Rb 2 O,Cs 2 O,Li 2 F 2,Na 2 F 2,K 2 F 2,Rb 2 F 2,Cs 2 F 2,Li 2 Cl 2,Na 2 Cl 2,K 2 Cl 2,Rb 2 Cl 2,Cs 2 Cl 2,Li 2 Br 2,Na 2 Br 2,K 2 B 2 ,Rb2Br2,Cs2Br2及其组合,并且具有小于约20摩尔%的非零浓度。 1450nm至1530nm范围内的组合物的发射带宽可以基于一种或多种组成比来改变。 Tm掺杂的锗酸盐光放大器可以放大电磁光谱的S带区域的光信号。

    Creating refractive index changes in glass by up-conversion of rare earth ions
    7.
    发明授权
    Creating refractive index changes in glass by up-conversion of rare earth ions 失效
    通过稀土离子的上转换来产生玻璃中的折射率变化

    公开(公告)号:US06762875B2

    公开(公告)日:2004-07-13

    申请号:US10071309

    申请日:2002-02-07

    申请人: Bryce N. Samson

    发明人: Bryce N. Samson

    IPC分类号: G02F202

    摘要: A method for creating refractive index changes in a substrate is provided by irradiating the substrate with infrared (IR) or visible light radiation. Ultra-violet (UV) radiation is generated in the substrate responsive to the IR or visible light radiation such that the change in the refractive index of the substrate is generated responsive to the UV radiation. Preferably, the substrate comprises a glass doped with rare earth ions.

    摘要翻译: 通过用红外(IR)或可见光辐射照射基板来提供用于产生基板中的折射率变化的方法。 响应于IR或可见光辐射,在衬底中产生紫外(UV)辐射,使得响应于UV辐射产生衬底的折射率的变化。 优选地,衬底包括掺杂有稀土离子的玻璃。