-
71.发明授权Method of making polarization retaining fiber with an elliptical core, with collapsed apertures 失效制造具有椭圆形芯的偏振光纤的方法，具有折叠的孔
公开(公告)号：US5149349A
公开(公告)日：1992-09-22
申请号：US728276
申请日：1991-07-11
IPC分类号： C03B37/012 , C03B37/014 , C03B37/027 , G02B6/024
CPC分类号： C03B37/02754 , C03B37/01217 , C03B37/01225 , C03B37/01231 , C03B37/01234 , C03B37/01248 , C03B37/01446 , C03B37/01473 , C03B37/01493 , C03B37/02709 , C03B2201/02 , C03B2201/08 , C03B2203/30 , C03B2203/302 , C03B2205/08 , C03B2205/12
摘要： Disclosed is a method of making a polarization retaining single-mode optical fiber. There is initially formed a draw blank having diametrically opposed longitudinal apertures in the cladding glass parallel to the core glass region. The draw blank is drawn into a fiber under such conditions that the apertures close as the fiber is being drawn. The flow of surrounding glass, including the core glass region, toward the collapsing apertures, causes the core to assume an elliptical shape. The apertures are of such cross-sectional area and spacing from the core that the core develops the desired aspect ratio.
-
公开(公告)号：US5131735A
公开(公告)日：1992-07-21
申请号：US670273
申请日：1991-03-15
CPC分类号： G02B6/2835 , C03C25/00
摘要： A fiber optic coupler is formed by providing a glass tube having a longitudinal aperture extending therethrough. Glass optical fibers, each having a core, cladding and coating are disposed within the longitudinal aperture, the fibers extending beyond each end thereof. The coating is removed from that portion of the fibers in the midregion of the tube. The midregion of the tube is heated, collapsed about the fibers, and drawn to reduce the diameter thereof over a predetermined length. The fibers that are used in the process of making the coupler are initially provided with a coating that is too thin to provide good handleability and strength. However, the thin initial coating enables the use of a tube having a small aperture and thereby enhances the tube collapse step. After the coupler is formed, the fibers extending therefrom are overcoated. The process can be used to make other kinds of optical devices including integrated optical components.
摘要翻译： 通过提供具有延伸穿过其中的纵向孔的玻璃管形成光纤耦合器。 每个具有芯，包层和涂层的玻璃光纤设置在纵向孔内，纤维延伸超出其每一端。 从管的中间部分的纤维部分去除涂层。 管的中间部分被加热，围绕纤维折叠，并被拉伸以将其直径减小预定长度。 在制造耦合器的过程中使用的纤维最初设置有太薄的涂层，以提供良好的可操作性和强度。 然而，薄的初始涂层使得能够使用具有小孔径的管，从而增强了管塌陷步骤。 在形成耦合器之后，从其延伸的纤维被覆盖。 该过程可用于制造其他类型的光学器件，包括集成的光学元件。
-
公开(公告)号：US4979972A
公开(公告)日：1990-12-25
申请号：US380877
申请日：1989-07-17
IPC分类号： G02B6/26 , C03B23/047 , G02B6/24 , G02B6/255 , G02B6/28
CPC分类号： C03B23/0473 , C03B23/047 , G02B6/243 , G02B6/2552 , G02B6/2835 , G02B6/2856
摘要： A fiber optic coupler is formed by providing a glass tube having a longitudinal extending aperture. Protective coating is removed from a region of a first optical fiber intermediate the end. Protective coating is removed from an end region of at least one other optical fiber. The coated portion of the first fiber is threaded through the tube until the uncoated region is near the tube end. The uncoated region of the second fiber is placed adjacent that of the first fiber, and both uncoated regions are simultaneously fed into the tube aperture. The threading operation is continued until the uncoated regions extend through the midregion of the tube, the midregion is heated to collapse it about the fibers, and the central portion of the midregion is drawn to reduce the diameter along a predetermined length.
-
公开(公告)号：US4931076A
公开(公告)日：1990-06-05
申请号：US204620
申请日：1988-06-09
申请人： George E. Berkey
发明人： George E. Berkey
IPC分类号： G02B6/28
CPC分类号： G02B6/2835
摘要： A method of making an economical fiber coupler comprises providing a glass tube having first and second end portions and a midregion, and a longitudinal aperture extending therethrough. Two suitably prepared glass optical fibers, each having a core and cladding, are disposed within the longitudinal aperture, the fibers extending beyond each end thereof. The fibers are held taut to effect a tension therein, and they are glued to each end portion. The midregion of the member is heated, collapsed about the fibers, and drawn to reduce the diameter thereof.
-
公开(公告)号：US4917718A
公开(公告)日：1990-04-17
申请号：US270620
申请日：1988-11-14
申请人： George E. Berkey
发明人： George E. Berkey
CPC分类号： C03B23/07 , G02B6/3803
摘要： A method of making a thick walled glass tube by depositing glass particles on the surface of a glass tube, sintering the particles, and drawing the resultant structure to form a capillary tube having a predetermined desired inside diameter.
摘要翻译： 一种通过在玻璃管的表面上沉积玻璃颗粒，烧结颗粒并拉伸所得结构以形成具有预定的所需内径的毛细管来制造厚壁玻璃管的方法。
-
公开(公告)号：US4784465A
公开(公告)日：1988-11-15
申请号：US576891
申请日：1984-02-03
申请人： George E. Berkey
发明人： George E. Berkey
IPC分类号： C03B37/014 , G02B6/10
CPC分类号： C03B37/01473 , C03B37/01493 , C03B2203/20
摘要： A glass optical waveguide preform is formed by depositing first and second coatings of glass soot on a mandrel. The characteristics of the first coating are such that it can ultimately form the core of an optical fiber. The core-clad diameter ratio of the preform is greater than that necessary to provide the desired core-clad diameter ratio of the resultant fiber. The mandrel is removed and the porous preform is consolidated. The preform aperture is etched, rinsed and dried. One end of the preform is heated and pinched to close the aperture. The aperture is evacuated, and the remaining end of the preform is heated, the corresponding end of the aperture being caused to close. An intermediate fiber is drawn from the resultant consolidated preform, the entire aperture being closed during drawing due to the low pressure within the aperture. The intermediate fiber is severed into sections, each of which functions as a mandrel for the deposition of a further coating of cladding soot. The resultant composite article is consolidated and drawn into an optical fiber.
摘要翻译： 通过在心轴上沉积玻璃烟炱的第一和第二涂层来形成玻璃光波导预制件。 第一涂层的特性使得其最终可以形成光纤的核心。 预成型件的芯包层直径比大于提供所得纤维所需的芯包层直径比所需的芯包层直径比。 去除心轴并将多孔预制件固结。 将预成型件孔径进行蚀刻，冲洗和干燥。 预制件的一端被加热并夹紧以封闭孔。 将孔径抽真空，并且预制件的剩余端部被加热，使孔的相应端部闭合。 中间纤维从所得固结的预成型件中拉出，整个孔由于孔内的低压而在拉拔过程中被关闭。 中间纤维被切断成各个部分，每个部分用作沉积另外的包层烟灰涂层的心轴。 将所得的复合制品固结并拉制成光纤。
-
公开(公告)号：US4773924A
公开(公告)日：1988-09-27
申请号：US765655
申请日：1985-08-15
申请人： George E. Berkey
发明人： George E. Berkey
IPC分类号： C03B23/047 , C03B37/012 , G02B6/28 , C03C25/02 , C03B37/027
CPC分类号： G02B6/2856 , C03B23/0473 , C03B37/01211 , G02B6/2808 , G02B6/2817 , G02B6/2835 , C03B2201/10 , C03B2201/42
摘要： A low loss fiber optic coupler is fabricated by forming a coupler preform having a plurality of spaced glass cores extending longitudinally through a matrix of glass having a refractive index lower than that of the cores. The coupler preform is formed by inserting a plurality of coated optical fiber preform rods into an aperture extending axially through an elongated boule of relatively etchable matrix glass. The cladding portion of the rods, which is relatively etch-resistant, is coated with a layer of etchable glass. The coupler preform is heated and stretched to form a glass rod which is then severed into a plurality of units. Heat is applied to the central region of each unit, and the central region is elongated and tapered inwardly. When an end of the unit is immersed in acid, the matrix glass dissolves, thereby leaving the unit cores and surrounding etch-resistant cladding glass protruding from the newly formed endface of the unit.
摘要翻译： 通过形成具有多个间隔开的玻璃核心的耦合器预制件来制造低损耗光纤耦合器，该玻璃核心纵向延伸穿过折射率低于芯子的折射率的玻璃矩阵。 耦合器预成型件通过将多个涂覆的光纤预制棒插入轴向延伸穿过相对可蚀刻的矩阵玻璃的细长的坯料而形成。 杆的包层部分相对抗蚀，涂覆有一层可蚀刻玻璃。 联接器预成型件被加热并拉伸以形成玻璃棒，然后将其切断成多个单元。 热量施加到每个单元的中心区域，并且中心区域是细长的并向内变细。 当单元的端部浸入酸中时，基体玻璃溶解，从而使单元芯和周围的耐蚀刻包层玻璃从单元的新形成的端面突出。
-
公开(公告)号：US4750926A
公开(公告)日：1988-06-14
申请号：US82679
申请日：1987-08-07
申请人： George E. Berkey
发明人： George E. Berkey
IPC分类号： C03B23/04 , C03B23/07 , G02B6/38 , C03B37/022
CPC分类号： G02B6/3803 , C03B23/076 , Y10T428/2973
摘要： Method of producing precision shaped apertures in glass is shown. A hollow glass member defining a longitudinal aperture is provided. A carbon graphite member is shaped externally to a desired shape, disposed within the longitudinal aperture in the glass member, which member is thereafter collapsed about the graphite member taking its shape and size. The graphite member is removed leaving the glass member with a precision aperture therein.
-
-
-
-
-
-
-
搜索结果
78 条记录 (耗时 0.022 秒)
