公开(公告)号：US06400879B1

公开(公告)日：2002-06-04

申请号：US09600111

申请日：2000-07-07

申请人： Robert M. Hawk ,  Daniel A. Nolan ,  Steven H. Tarcza

发明人： Robert M. Hawk ,  Daniel A. Nolan ,  Steven H. Tarcza

IPC分类号： G02B602

CPC分类号： G02B6/02238 ,  G02B6/02 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/0281 ,  H04B10/25 ,  H04B10/2525

摘要： Disclosed is a single mode optical waveguide fiber having a core region refractive index profile designed to provide a highly non-linear refractive index. The core index profile of the highly non-linear waveguide is an &agr;-profile which has pre-selected values of relative refractive-index and core diameter so as to retain the advantageous optical waveguide properties of low attenuation, properly placed zero dispersion and cut off wavelengths, low, positive total dispersion over a pre-selected wavelength range, and low dispersion slope.

摘要翻译： 公开了具有设计成提供高度非线性折射率的芯区折射率分布的单模光波导光纤。 高度非线性波导的核心折射率分布是具有相对折射率和芯直径的预选值的α轮廓，以便保持低衰减，适当放置的零色散和切断的有利的光波导特性 在预选波长范围内的波长，低，正的总色散以及低色散斜率。

公开(公告)号：US5152818A

公开(公告)日：1992-10-06

申请号：US612103

申请日：1990-11-09

申请人： George E. Berkey ,  Venkata A. Bhagavatula ,  Robert M. Hawk ,  Steven H. Tarcza

发明人： George E. Berkey ,  Venkata A. Bhagavatula ,  Robert M. Hawk ,  Steven H. Tarcza

IPC分类号： G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/02 ,  C03C15/00 ,  C03C25/68 ,  G02B6/024

CPC分类号： C03B37/01234 ,  C03B37/01217 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/01248 ,  C03B37/0126 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/01486 ,  C03C15/00 ,  C03C25/68 ,  C03B2201/10 ,  C03B2203/31 ,  C03B2207/06 ,  C03B2207/14 ,  C03B2207/40

摘要： Disclosed is a method of making a polarization retaining single-mode optical fiber. Longitudinal grooves are formed on opposite sides of a cylindrically-shaped core perform having a glass core surrounded by cladding glass. The core preform is inserted into a glass tube, the tube is shrunk onto the core preform, and the interface between the core preform and the tube is fused to form a solid preform having longitudinal apertures on opposite sides of the core. An etchant gas is flowed through the apertures to enlarge the apertures into holes having a substantially round cross-section. Inserted into each aperture is a stress rod formed of glass having a coefficient of expansion different from that of the cladding glass. The resultant draw blank is drawn to form a single-mode optical fiber having a core that is subjected to a stress-induced birefringence.

公开(公告)号：US5149349A

公开(公告)日：1992-09-22

申请号：US728276

申请日：1991-07-11

申请人： George E. Berkey ,  Robert M. Hawk ,  Steven H. Tarcza

发明人： George E. Berkey ,  Robert M. Hawk ,  Steven H. Tarcza

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：US06771865B2

公开(公告)日：2004-08-03

申请号：US10315287

申请日：2002-12-09

申请人： Paul E. Blaszyk ,  Lisa L. Hepburn ,  Gang Qi ,  Steven H. Tarcza

发明人： Paul E. Blaszyk ,  Lisa L. Hepburn ,  Gang Qi ,  Steven H. Tarcza

IPC分类号： G02B602

CPC分类号： G02B6/2835 ,  G02B6/02 ,  G02B6/02333 ,  G02B6/0286 ,  G02B6/03611 ,  G02B6/03622 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/0365

摘要： The present invention provides an optical fiber suitable for the manufacture of optical fiber couplers and having low bend loss, low splice loss, and low attenuation. The optical fibers according to one aspect of the invention have bending loss of less than 0.5 dB at 1560 nm when wrapped 5 turns around a 20 mm mandrel; and an average fiber pull test loss of less than 0.1 dB in the wavelength range of 1530 nm to 1550 nm. The present invention also includes optical fiber components made from these optical fibers.

摘要翻译： 本发明提供一种适用于制造光纤耦合器并具有低弯曲损耗，低接合损耗和低衰减的光纤。 根据本发明的一个方面的光纤在围绕20mm心轴缠绕5圈时在1560nm具有小于0.5dB的弯曲损耗; 并且在1530nm至1550nm的波长范围内的平均光纤拉拔测试损耗小于0.1dB。 本发明还包括由这些光纤制成的光纤部件。

公开(公告)号：US06665481B2

公开(公告)日：2003-12-16

申请号：US10027104

申请日：2001-12-20

申请人： Peter G. Hebgen ,  Steven H. Tarcza

发明人： Peter G. Hebgen ,  Steven H. Tarcza

IPC分类号： G02B602

CPC分类号： G02B6/03677 ,  G02B6/02261

摘要： A dispersion compensating (DC) fiber preferably including a central segment having a relative refractive index, a depressed moat segment, an intermediate segment, an annular ring segment and a cladding layer. The relative refractive index profile of the DC fiber is selected to provide negative dispersion, negative dispersion slope, a &kgr; value of less than or equal to about 100, and MPI of less than −40 dB at 1550 nm. The DC fiber preferably has a pin array bend loss of less than or equal to about 30 dB at a wavelength of about 1550 nm.

摘要翻译： 一种色散补偿（DC）纤维，优选地包括具有相对折射率的中心片段，凹陷的护条段，中间片段，环形环形片段和包覆层。 选择DC光纤的相对折射率分布以在1550nm处提供负色散，负色散斜率，小于或等于约100的κ值以及小于-40dB的MPI。 在约1550nm的波长下，DC光纤优选地具有小于或等于约30dB的引脚阵列弯曲损耗。