METHOD ENABLING DUAL PRESSURE CONTROL WITHIN FIBER PREFORM DURING FIBER FABRICATION
    3.
    发明申请
    METHOD ENABLING DUAL PRESSURE CONTROL WITHIN FIBER PREFORM DURING FIBER FABRICATION 审中-公开
    在纤维制造过程中使纤维预制件内的双压力控制的方法

    公开(公告)号:WO2007106305A2

    公开(公告)日:2007-09-20

    申请号:PCT/US2007004532

    申请日:2007-02-20

    CPC classification number: C03B37/02781 C03B2203/42 C03B2205/10

    Abstract: A method of fabricating a photonic crystal or photonic band gap optical fiber comprises providing a preform that includes a plurality of holes in an outer diameter, wherein the holes extend from a first end of a preform to a second end of the preform, and forming at least one radially inwardly-extending slot within the preform such that the slot intersects at least some of the holes, wherein the slot does not intersect at least one hole. The method also includes establishing a first pressure in the holes intersected by the slot by introducing the first pressure to the slot, and establishing a second pressure in the at least one hole not intersected by the slot by introducing the second pressure to an end of the at least one hole not intersected by the slot. The method further includes drawing the preform into a fiber while independently controlling the first and second pressures.

    Abstract translation: 一种制造光子晶体或光子带隙光纤的方法包括提供预制件,该预制件在外径上包括多个孔,其中孔从预制件的第一端延伸到预制件的第二端, 所述预制件内的至少一个径向向内延伸的狭槽使得所述狭槽与至少一些所述孔相交,其中所述狭槽不与至少一个孔相交。 该方法还包括通过将第一压力引入到狭槽中,在与狭槽相交的孔中建立第一压力,以及通过将第二压力引入到狭槽的端部而在未与狭槽相交的至少一个孔中建立第二压力 至少一个孔不与狭槽相交。 该方法还包括将预制件拉成纤维,同时独立地控制第一和第二压力。

    PRE-FORM FOR AND METHODS OF FORMING A HOLLOW-CORE SLOTTED PBG OPTICAL FIBER FOR AN ENVIRONMENTAL SENSOR
    5.
    发明申请
    PRE-FORM FOR AND METHODS OF FORMING A HOLLOW-CORE SLOTTED PBG OPTICAL FIBER FOR AN ENVIRONMENTAL SENSOR 审中-公开
    形成用于环境传感器的中空裂缝PBG光纤的预成型和方法

    公开(公告)号:WO2009157977A1

    公开(公告)日:2009-12-30

    申请号:PCT/US2009/003655

    申请日:2009-06-18

    Abstract: A preform for forming a hollow-core, slotted photonic band-gap (PBG) optical fiber for use in an environmental sensor, and methods of forming such a fiber using the preform are disclosed. The preform comprises a slotted cladding tube that surrounds a slotted, hollow-core PBG cane. The slots in the cladding tube and PBG cane are longitudinally formed and substantially aligned with each other. When the preform is drawn, the slots merge to form an elongated side opening or slot in the resulting hollow- core PBG fiber. In one case, the slot reaches the hollow core upon drawing, while in another case a second step is used to extend the slot to connect to the hollow core. The fiber is used to form an environmental sensor for sensing the presence of a target substance in an environment. The slot formed in the PBG region of the fiber forms a ridge waveguide wherein a portion of the light that otherwise is confined to the hollow core as a bound mode travels in the slot. The target substance affects the light traveling in the fiber, allowing for the target substance to be detected.

    Abstract translation: 公开了一种用于形成用于环境传感器的中空芯,开槽光子带隙(PBG)光纤的预成型件和使用该预成型件形成这种纤维的方法。 预成型件包括围绕开槽的中空PBG棒的开槽包层管。 包层管和PBG拐杖中的狭缝纵向地形成并且基本上彼此对齐。 当预成型件被拉伸时,狭缝合并以形成在所得中空PBG纤维中的细长侧开口或槽。 在一种情况下,槽在拉伸时到达中空芯,而在另一种情况下,使用第二步来延伸槽以连接到中空芯。 纤维用于形成用于感测环境中目标物质的存在的环境传感器。 形成在纤维的PBG区域中的槽形成脊状波导,其中以狭缝模式限制在中空芯中的光的一部分在槽中行进。 目标物质影响在纤维中传播的光,允许检测目标物质。

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