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1. 发明申请

US20080260339A1 Manufacture of depressed index optical fibers 审中-公开
标题翻译：凹陷指数光纤的制造
公开(公告)号：US20080260339A1
公开(公告)日：2008-10-23
申请号：US12148891
申请日：2008-04-23
申请人： Eric L. Barish , Robert Lingle , David Peckham , Fengqing Wu
发明人： Eric L. Barish , Robert Lingle , David Peckham , Fengqing Wu
IPC分类号： G02B6/036 , C03B37/018
CPC分类号： C03B37/01211 , C03B37/014 , C03B2201/12 , C03B2201/31 , C03C3/04 , C03C13/04 , G02B6/03627 , G02B6/03644 , G02B6/03677 , G02B6/03694
摘要： Described herein is a method for making a depressed index cladding for the inner cladding of an optical fiber. The method involves making the depressed index cladding in two steps. The innermost portion of the inner cladding is produced using a soot method, thereby deriving the advantages of the soot method for the region of the cladding that carries the most optical power, then forming the remaining portion of the inner cladding layer using a rod-in-tube step. This method effectively marries the advantages and disadvantages of both methods.
摘要翻译：这里描述了一种用于制造用于光纤的内包层的凹陷折射率包层的方法。该方法包括使凹陷的折射率包层分两步进行。使用烟灰法制造内包层的最内部，从而得到具有最大光焦度的包层的区域的烟灰法的优点，然后使用棒入法形成内包层的剩余部分立方步。这种方法有效地结合了两种方法的优缺点。

2. 发明授权

US07836728B2 Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber performs 有权
标题翻译：提高光纤中低D / d比芯棒的包层比（D / d）
公开(公告)号：US07836728B2
公开(公告)日：2010-11-23
申请号：US11801365
申请日：2007-05-09
申请人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
发明人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
IPC分类号： C03B37/01 , C03B37/012 , C03B37/02
CPC分类号： C03B37/01211 , C03B37/01245 , C03B37/014
摘要： An optical fiber preform is fabricated by inserting a number of core body pieces end-to-end inside a glass cylinder, wherein the pieces may have a cladding-to-core diameter (D/d) ratio within the range of one to four. The cylinder with the inserted core body pieces is mounted vertically on a furnace and heated so that the cylinder becomes elongated and its outside diameter collapses to form a core rod from which core rod sections with D/d ratios greater than five, can be cut. A soot overcladding is deposited on the circumference of a core rod section until the diameter of the deposited soot builds to a determined value. The core rod section with the deposited soot overcladding is consolidated to obtain a finished optical fiber preform. The preform preferably has a D/d ratio of about 15 or more, and an optical fiber may be drawn directly from the preform.
摘要翻译：光纤预制棒是通过在玻璃圆筒内端到端插入多个芯体片来制造的，其中，所述片可以具有在1至4的范围内的包芯到芯直径（D / d）比。具有插入的芯体件的气缸垂直安装在炉子上并加热，使得气缸变长并且其外径塌陷以形成芯棒，从而可以切割D / d比大于5的芯棒部分。烟炱外包层沉积在芯棒部分的圆周上，直到沉积的烟炱的直径建立到确定的值。具有沉积的烟灰包层的芯棒部分被固结以获得成品的光纤预制件。预成型体优选具有约15或更大的D / d比，并且可以从预成型件直接拉制光纤。

3. 发明申请

US20080276651A1 Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber performs 有权
标题翻译：提高光纤中低D / d比芯棒的包层比（D / d）
公开(公告)号：US20080276651A1
公开(公告)日：2008-11-13
申请号：US11801365
申请日：2007-05-09
申请人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
发明人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
IPC分类号： C03B37/15
CPC分类号： C03B37/01211 , C03B37/01245 , C03B37/014
摘要： An optical fiber preform is fabricated by inserting a number of core body pieces end-to-end inside a glass cylinder, wherein the pieces may have a cladding-to-core diameter (D/d) ratio within the range of one to four. The cylinder with the inserted core body pieces is mounted vertically on a furnace and heated so that the cylinder becomes elongated and its outside diameter collapses to form a core rod from which core rod sections with D/d ratios greater than five, can be cut. A soot overcladding is deposited on the circumference of a core rod section until the diameter of the deposited soot builds to a determined value. The core rod section with the deposited soot overcladding is consolidated to obtain a finished optical fiber preform. The preform preferably has a D/d ratio of about 15 or more, and an optical fiber may be drawn directly from the preform.
摘要翻译：光纤预制棒是通过在玻璃圆筒内端到端插入多个芯体片来制造的，其中，所述片可以具有在1至4的范围内的包芯到芯直径（D / d）比。具有插入的芯体件的气缸垂直安装在炉子上并加热，使得气缸变长并且其外径塌陷以形成芯棒，从而可以切割D / d比大于5的芯棒部分。烟炱外包层沉积在芯棒部分的圆周上，直到沉积的烟炱的直径建立到确定的值。具有沉积的烟灰包层的芯棒部分被固结以获得成品的光纤预制件。预成型体优选具有约15或更大的D / d比，并且可以从预成型件直接拉制光纤。

4. 发明授权

US08196437B2 Increasing the cladding-to-core ratio (D/d) of low D/d core rods in optical fiber preforms 有权
标题翻译：提高光纤预制棒中低D / d芯棒的包芯比（D / d）
公开(公告)号：US08196437B2
公开(公告)日：2012-06-12
申请号：US12902316
申请日：2010-10-12
申请人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
发明人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
IPC分类号： C03B37/01 , C03B37/012 , C03B37/02
CPC分类号： C03B37/01211 , C03B37/01245 , C03B37/014
摘要： Core rod sections useable for production of finished optical fiber preforms are fabricated by inserting one or more core body pieces axially end-to-end inside a glass cylinder, thereby defining joints between adjacent ones of the inserted pieces. The cylinder is mounted with the contained core body pieces in the region of a furnace. The glass cylinder and core body pieces are heated together in the furnace, thereby elongating the cylinder and the core body pieces contained in the cylinder, and the cylinder collapses to form a finished core rod. Core rod sections are cut from the finished core rod at positions that coincide with the joints between the core body pieces. One or more of the cut core rod sections are useable for the production of optical fiber preforms.
摘要翻译：用于生产成品光纤预制棒的芯棒部分通过将一个或多个芯体件沿轴向端对端插入玻璃圆筒内而制成，从而限定相邻插入件之间的接合部。气缸在炉的区域中安装有包含的芯体件。玻璃圆筒和芯体片在炉中一起加热，从而使容纳在圆筒中的圆筒和芯体片伸长，并使圆筒塌缩，形成成品芯棒。在与核心体部件之间的接合部重合的位置处，从完成的芯棒切割出芯棒部分。一个或多个切割芯棒部分可用于生产光纤预制棒。

5. 发明申请

US20110023551A1 INCREASING THE CLADDING-TO-CORE RATIO (D/d) OF LOW D/d CORE RODS IN OPTICAL FIBER PREFORMS 有权
标题翻译：增加光纤光纤预取中低D / D核心线的密切比（D / D）
公开(公告)号：US20110023551A1
公开(公告)日：2011-02-03
申请号：US12902316
申请日：2010-10-12
申请人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
发明人： Eric L. Barish , Joseph P. Fletcher, III , Fengqing Wu
IPC分类号： C03B37/15 , C03B37/16
CPC分类号： C03B37/01211 , C03B37/01245 , C03B37/014
摘要： Core rod sections useable for production of finished optical fiber preforms are fabricated by inserting one or more core body pieces axially end-to-end inside a glass cylinder, thereby defining joints between adjacent ones of the inserted pieces. The cylinder is mounted with the contained core body pieces in the region of a furnace. The glass cylinder and core body pieces are heated together in the furnace, thereby elongating the cylinder and the core body pieces contained in the cylinder, and the cylinder collapses to form a finished core rod. Core rod sections are cut from the finished core rod at positions that coincide with the joints between the core body pieces. One or more of the cut core rod sections are useable for the production of optical fiber preforms.
摘要翻译：用于生产成品光纤预制棒的芯棒部分通过将一个或多个芯体件沿轴向端对端插入玻璃圆筒内而制成，从而限定相邻插入件之间的接合部。气缸在炉的区域中安装有包含的芯体件。玻璃圆筒和芯体片在炉中一起加热，从而使容纳在圆筒中的圆筒和芯体片伸长，并使圆筒塌缩，形成成品芯棒。在与核心体部件之间的接合部重合的位置处，从完成的芯棒切割出芯棒部分。一个或多个切割芯棒部分可用于生产光纤预制棒。

6. 发明授权

US5281248A VAd process improvements 失效
标题翻译： VAd流程改进
公开(公告)号：US5281248A
公开(公告)日：1994-01-25
申请号：US20951
申请日：1993-02-22
申请人： Eric L. Barish , David E. Schoonmaker
发明人： Eric L. Barish , David E. Schoonmaker
IPC分类号： G02B6/00 , C03B37/014 , C03B37/018 , C03B37/023
CPC分类号： C03B37/01446 , C03B37/01466 , Y02P40/57
摘要： In a VAD method for making optical fiber preforms, the yield is increased by terminating or significantly reducing the supply of glass raw material to the torch (24) just after glass jacket soot (23, FIG. 4) has been deposited at the bottom end of the glass rod (20). The fuel supply to the torch is maintained, however, and the flame continues to be projected from the torch toward the deposited soot boule (23). The rate of vertical movement of the glass rod is increased until the flame is directed at the bottom end (27') of the soot boule. The flame is then allowed to dwell for a sufficient period to increase significantly the temperature of the bottom end of the soot boule and to consolidate partially the bottom end of the soot boule. This has the effect of containing the soot and countering the effects of gravity on the delicate soot boule that might otherwise cause it to crack.
摘要翻译：在用于制造光纤预制棒的VAD方法中，通过在玻璃夹套烟炱（图4）已经沉积在底端之后终止或显着减少玻璃原料供给到焊炬（24）的产量而提高了产率的玻璃棒（20）。然而，维持火炬的燃料供应，并且火焰继续从割炬投射到沉积的烟灰le（23）。玻璃棒的垂直运动速率增加，直到火焰指向烟炱块的底端（27'）。然后允许火焰持续足够的时间以显着增加烟炱底部的底部的温度并且部分地固化烟炱底部的底端。这具有含有烟灰和抵抗重力对微细烟炱焦的影响，否则可能导致其破裂。

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