Dispersion-compensating fiber and method of fabricating the same
    61.
    发明授权
    Dispersion-compensating fiber and method of fabricating the same 失效
    色散补偿光纤及其制造方法

    公开(公告)号:US5740297A

    公开(公告)日:1998-04-14

    申请号:US705993

    申请日:1996-08-30

    Abstract: This invention relates to a dispersion-compensating fiber which can be drawn at a lower temperature and can further reduce optical transmission loss. This dispersion-compensating fiber comprises a core portion containing a high concentration of GeO.sub.2 and a cladding portion formed around the outer periphery of the core portion. The cladding portion comprises a first cladding containing fluorine or the like as an index reducer, a second cladding having a higher refractive index than that of the first cladding, and a third cladding which becomes a glass region substantially noncontributory to propagation of signal light. In particular, the third cladding contains a desired impurity such that the glass viscosity thereof becomes lower than that of the second cladding or pure silica cladding at a predetermined temperature.

    Abstract translation: 本发明涉及一种可在较低温度下拉制并能进一步降低光传输损耗的色散补偿光纤。 这种色散补偿光纤包括含有高浓度GeO 2的核心部分和形成在芯部分的外周周围的包层部分。 包层部分包括含有氟等作为折射率减少器的第一包层,具有比第一包层的折射率高的第二包层,以及变成与信号光的传播基本上不相容的玻璃区域的第三包层。 特别地,第三包层包含期望的杂质,使得其玻璃粘度在预定温度下变得低于第二包层或纯二氧化硅包层的玻璃粘度。

    도핑 최적화된 최저 감쇠 단일모드 광섬유
    63.
    发明公开
    도핑 최적화된 최저 감쇠 단일모드 광섬유 审中-实审
    掺杂优化的低阻尼单模光纤

    公开(公告)号:KR1020170105621A

    公开(公告)日:2017-09-19

    申请号:KR1020177023832

    申请日:2015-12-01

    Abstract: 도핑최적화된최저감쇠단일모드광섬유는, 코어층이포함되고, 코어층외부에는안으로부터바깥으로내부피복층, 함몰형내부피복층, 보조형외부피복층과외부피복층이순차적으로피복되며, 코어층중의불소함량은 0.5wt% 보다작거나같고, 게르마늄의상대적굴절률기여량은 0.12% 보다작거나같으며, 상대적굴절률Δn1은 0.12%보다작거나같고, 내부피복층중의불소함량은 0.5-1.5 wt%이며, 내부피복층의상대적굴절률Δn2은 -0.14%보다작거나같고, 함몰형내부피복층중의불소함량은 1-3wt%이며, 함몰형내부피복층의상대적굴절률Δn3은 -0.25% 보다작거나같고, 보조형외부피복층중의불소함량은 0.5-2wt%이며, 보조형외부피복층의상대적굴절률Δn4은 -0.14%보다작거나같고, 외부피복층은순 이산화규소유리층및/또는금속이도핑된이산화규소유리층이다. 광섬유는코어층점도를낮추고, 코어층이내부피복층과함몰형피복층과더욱잘 매칭되도록하며, 금속이도핑된매칭점도외부피복층을결합하여, 광섬유가상온도를전반적으로낮추는동시에함몰형피복층설계를통하여, 베이직모드누설을억제하여, 최저감쇠를구현한다.

    Abstract translation: 掺杂优化的最小衰减的单模光纤,包含核心层,从所述覆盖层内的内部外芯层到外部,凹陷型内涂层,辅助外部涂层和外涂层涂布,以便,在核心层中的氟含量 锗的是等于或小于0.5重量%,相对折射率贡献量小于或等于0.12%,折射ΔN1的相对指数小于或等于0.12%,在所述内涂层中的氟含量为0.5-1.5重量%时,内覆盖层 针对ΔN2折射率服装是小于或等于-0.14%,并且凹陷型是在内部涂层1-3wt%的氟含量,抑郁型的相对折射率ΔN3内涂层是小于或等于-0.25%,氟型二次外涂层的 含量是0.5-2wt%,第二外涂层类型的相对折射率Δn4是小于或等于-0.14%,外包衣层是掺杂有金属层二氧化硅和/或二氧化硅玻璃的净玻璃层。 光纤以降低芯层的粘度,芯层,并通过凹陷型涂层设计的内包衣层和凹陷型涂覆层,匹配金属掺杂外的涂料粘度的组合,以更好地匹配,同时降低光纤虚拟温度作为一个整体 ,抑制基本模式泄漏,实现最低衰减。

    광증폭기용 광섬유 및 제조방법
    64.
    发明授权
    광증폭기용 광섬유 및 제조방법 失效
    광증폭기용광섬유및제조방법

    公开(公告)号:KR100427446B1

    公开(公告)日:2004-04-17

    申请号:KR1020020026265

    申请日:2002-05-13

    Abstract: The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130 nm-1530 nm). According to the present invention, silica is used as a base material and the optical fiber for an optical amplifier contains Tm3+ ions and metal ions in a first core layer formed on an inner surface of a second core layer using the MCVD (Modified Chemical Vapor Deposition) method and a solution doping method whereby the practicability and productivity of the optical fiber are remarkably improved.

    Abstract translation: 光学放大器用光纤及其制造方法技术领域本发明涉及可用于S波段(4130nm〜1530nm)的光学传输系统的光学放大器用光纤及其制造方法。 根据本发明,使用二氧化硅作为基材,并且用于光学放大器的光纤在使用MCVD(改进的化学气相沉积法)形成在第二核心层的内表面上的第一核心层中包含Tm3 +离子和金属离子 )法和溶液掺杂法,由此光纤的实用性和生产率显着提高。

    메탈이 도핑된 실리카 글래스의 제조 방법
    65.
    发明公开
    메탈이 도핑된 실리카 글래스의 제조 방법 有权
    生产金属二氧化硅玻璃的方法

    公开(公告)号:KR1020010036211A

    公开(公告)日:2001-05-07

    申请号:KR1019990043121

    申请日:1999-10-06

    CPC classification number: C03C3/04 C03C2201/31 C03C2203/26 C03C2203/32

    Abstract: PURPOSE: Provided is a process for producing a metal dopped silica glass, which is improved in optical property of optical fiber and prevents cracks from taking place by dopping uniformly metal particles such as germanium in the silica glass. CONSTITUTION: The process comprises the steps of: i) hydrolyzing a metal alkoxide; ii) mixing deionized water and more fumed silica than the metal alkoxide to be in a molar ratio of 1:0.1 or less; iii) mixing the hydrolyzed metal alkoxide with the mixture to form sol; iv) injecting the sol into the mold to gel; v) demolding the gel and drying it; and then vi) sintering the dried gel to vitrificate.

    Abstract translation: 目的:提供一种金属掺杂石英玻璃的制造方法,其改善了光纤的光学特性,并且通过在石英玻璃中均匀掺杂诸如锗的金属颗粒来防止发生裂纹。 构成:该方法包括以下步骤:i)水解金属醇盐; ii)将去离子水和更多的热解法二氧化硅与金属醇盐混合至摩尔比为1:0.1或更小; iii)将水解的金属醇盐与混合物混合以形成溶胶; iv)将溶胶注入模具中以凝胶化; v)将凝胶脱模并干燥; 然后vi)将干燥的凝胶烧结以进行玻璃化。

    BRAGG GRATING OPTICAL FIBER
    70.
    发明申请
    BRAGG GRATING OPTICAL FIBER 审中-公开
    BRAGG光栅光纤

    公开(公告)号:WO2004034109A1

    公开(公告)日:2004-04-22

    申请号:PCT/US2003/032079

    申请日:2003-10-10

    Abstract: The present invention provides an optical fiber providing high photosensitivity in the absence of hydrogen loading as well as a low numerical aperture. One aspect of the present invention relates to an optical fiber including a core, the core comprising silica doped with at least about 6 mol% germania and at least about 0.9 wt% fluorine; and a cladding surrounding the core. The optical fiber of the present invention is suitable for the production of fiber Bragg gratings.

    Abstract translation: 本发明提供了一种在不存在氢负载和低数值孔径的情况下提供高光敏性的光纤。 本发明的一个方面涉及一种包括芯的光纤,所述芯包括掺杂有至少约6mol%的氧化锗和至少约0.9wt%的氟的二氧化硅; 以及围绕芯的包层。 本发明的光纤适用于制造光纤布拉格光栅。

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