公开(公告)号：US06195492B1

公开(公告)日：2001-02-27

申请号：US09155576

申请日：1998-12-16

Applicant: Robert M. Hawk

Inventor： Robert M. Hawk

IPC: G02B616

CPC classification number: G02B6/03644 ,  C03B37/01211 ,  C03B37/01217 ,  C03B37/02709 ,  C03B37/02754 ,  C03B2203/18 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2203/36 ,  C03B2205/08 ,  C03B2205/14 ,  G02B6/02247 ,  G02B6/105

Abstract: A single-mode elliptical core optical fiber (15) suitable for the transmission of solitons has a core aspect ratio that changes along the length of the fiber to provide a fiber dispersion that monotonically decreases along the fiber from one end thereof to the other. The fiber preform (30) is drawn from a draw blank (10) having a glass core (11) surrounded by cladding glass (12) and having apertures (13) that are diametrically opposed with respect to the core (11). The cross-sectional area of the void space within the apertures (13) varies with respect to the longitudinal distance along the apertures.

Abstract translation: 适合于透射孤子的单模椭圆芯光纤（15）具有沿着光纤长度变化的纤芯纵横比，以提供沿纤维从其一端到另一端单调减小的纤维分散体。 纤维预制件（30）从具有由包层玻璃（12）包围的玻璃芯（11）的拉丝坯（10）拉出，并且具有相对于芯部（11）沿径向相对的孔（13）。 孔（13）内的空隙空间的横截面面积相对于沿孔的纵向距离而变化。

公开(公告)号：US5768462A

公开(公告)日：1998-06-16

申请号：US611172

申请日：1996-03-05

Applicant: Thomas D. Monte

Inventor： Thomas D. Monte

IPC: C03B37/012 ,  C03B37/027 ,  C03B37/03 ,  G01R15/24 ,  G02B6/02 ,  G02B6/10 ,  G02F1/01

CPC classification number: C03B37/02709 ,  C03B37/01234 ,  C03B37/027 ,  C03B37/032 ,  G01R15/241 ,  G02B6/105 ,  G02F1/0115 ,  C03B2203/02 ,  C03B2203/04 ,  C03B2203/30 ,  C03B2203/31

Abstract: An optical fiber which modifies the optical signals propagated through the fiber and has refractive properties which change in response to electromagnetic energy. The outer surface of the fiber forms at least one groove extending along a selected length of the fiber for receiving an electrode, which would apply an electrical voltage to the fiber resulting in a change of the refractive properties of the fiber.

公开(公告)号：US5160522A

公开(公告)日：1992-11-03

申请号：US241043

申请日：1991-08-06

Applicant: Masahiro Takagi ,  Hiroshi Suganuma ,  Hiroo Kanamori

Inventor： Masahiro Takagi ,  Hiroshi Suganuma ,  Hiroo Kanamori

IPC: C03B37/012

CPC classification number: C03B37/01217 ,  C03B2203/31

Abstract: A preform for a polarization retaining optical fiber is produced by making at least two bores symmetrically around a center axis of a preform comprising a core part and a cladding part which surrounds the core part, decreasing a diameter of one end of each bore, or connecting a glass tube to one end of the preform, the glass tube having a part with a smaller inner diameter near its end which is connected to the preform, inserting a first glass rod, a stressing member and a second glass rod in this order from the other end of each bore or from an end of each bore which is remote from the connected glass tube, contacting the first glass rod to the diameter-decreased end of each bore or to the part with a smaller inner diameter of the glass tube, and heating and fusing the second glass rod to the preform.

公开(公告)号：US4935045A

公开(公告)日：1990-06-19

申请号：US297971

申请日：1989-01-17

Applicant: Ryozo Yamauchi ,  Matsuhiro Miyamoto ,  Tatsuyuki Oohashi ,  Osamu Fukuda

Inventor： Ryozo Yamauchi ,  Matsuhiro Miyamoto ,  Tatsuyuki Oohashi ,  Osamu Fukuda

IPC: G02B6/024 ,  C03B20/00 ,  C03B37/014 ,  C03B37/018 ,  G02B6/02

CPC classification number: C03B37/0142 ,  C03B37/01493 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2203/34 ,  C03B2207/06 ,  C03B2207/20 ,  C03B2207/60

Abstract: Disclosed is a method of manufacturing a preform for an asymmetric optical fiber which comprises the steps of (a) fixing plural transparent glass rods involving at least one core-mother rod functioning as the core in said optical fiber in parallel relationship, (b) depositing glass soot around an assembly of said plural parallel fixed glass rods, thereby providing a single porous cladding bearing the predetermined shape, and (c) vitrifying the porous cladding by thermal fusion, thereby providing the entirely integral transparent preform. The above method does not involve any process of perforating a drilled-pore which is needed inevitably in conventional method. Therefore, it is possible to obtain a long preform with high dimensional precision, and to fabricate the optical fiber with low transmission loss.

公开(公告)号：US4478489A

公开(公告)日：1984-10-23

申请号：US479490

申请日：1983-03-28

Applicant: Michael G. Blankenship ,  Donald B. Keck

Inventor： Michael G. Blankenship ,  Donald B. Keck

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  G02B6/10 ,  G02B5/172

CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B37/014 ,  C03B37/018 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/42 ,  C03B2203/31

Abstract: A single mode optical waveguide is fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. This characteristic is accomplished by introducing into the cladding region of the fiber on opposite sides of the core longitudinally extending regions of glass having a thermal coefficient of expansion different from that of the remainder of the cladding. A number of novel techniques are disclosed for forming such a fiber.

Abstract translation: 单模光波导以这样的方式制造，使得其芯受到应力诱导的双折射。 该特性是通过将纤维纵向延伸的区域的纤维的相对两侧的纤维的包层区域引入热膨胀系数不同于包层的其余部分而实现的。 公开了用于形成这种纤维的许多新技术。

公开(公告)号：US09726817B2

公开(公告)日：2017-08-08

申请号：US15317398

申请日：2015-11-03

Applicant: FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD. ,  Wuhan Fiberhome Ruiguang Technology CO., LTD.

Inventor： Wenyong Luo ,  Zhijian Liu ,  Yili Ke ,  Qi Mo ,  Fuming Hu ,  Qiong Lei ,  Zhiwen Kang ,  Rong Dan ,  Lei Zhao

IPC: G02B6/36 ,  G02B6/024 ,  G02B6/036 ,  G02F1/01 ,  G02B6/028 ,  G02B6/02

CPC classification number: G02B6/024 ,  C03B37/01217 ,  C03B2203/31 ,  C03C25/1065 ,  G02B6/02395 ,  G02B6/0286 ,  G02B6/036 ,  G02B6/03688 ,  G02B6/03694 ,  G02F1/0134

Abstract: Disclosed is a small-diameter polarization maintaining optical fiber, which relates to the field of special optical fibers. The small-diameter polarization maintaining optical fiber comprises a quartz optical fiber (5); the periphery thereof is provided with an inner coating (6) and an outer coating (8); the interior of the quartz optical fiber (5) is provided with an optical fiber core layer (1) and a quartz cladding (2); two stress zones (4) are arranged between the optical fiber core layer (1) and the quartz cladding (2); a buffer coating (7) is arranged between the inner coating (6) and the outer coating (8); the periphery of each stress zone (4) is provided with a buffer layer (3) which is concentric with the stress zone (4); when a working wavelength of a small-diameter polarization maintaining optical fiber is 1310 nm, the attenuation thereof reaches less than 0.5 dB/km, and the crosstalk reaches −35 dB/km; and when the working wavelength of the small-diameter polarization maintaining optical fiber is 1550 nm, the attenuation thereof reaches less than 0.4 dB/km, and the crosstalk reaches −30 dB/km. The optical fiber not only has excellent stability characteristics of attenuation and crosstalk, but also has the excellent stability characteristic of long-term operation, and can provide a better optical fiber ring for research on a high-precision optical fiber gyroscope, thereby laying the foundation for the development directions of miniaturization and high precision of the optical fiber gyroscope.

公开(公告)号：US20170075147A1

公开(公告)日：2017-03-16

申请号：US15308549

申请日：2015-05-06

Applicant: J-FIBER GMBH

Inventor： Thomas Gutsche ,  Wolfgang Hämmerle ,  Robert Hanf ,  Lothar Brehm

IPC: G02F1/01 ,  C03B37/027 ,  C03B37/012

CPC classification number: G02F1/0134 ,  C03B37/01217 ,  C03B37/01234 ,  C03B37/02709 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2205/08 ,  C03B2205/12 ,  G02B6/00 ,  G02B6/024 ,  Y02P40/57

Abstract: The invention relates to a method for producing a polarization-maintaining optical fibre, consisting of a core region and stress-generating elements embedded in the fibre body, having the following method steps: producing a core preform for the core region using internal deposition on a substrate tube, the internally coated substrate tube subsequently being collapsed, generating recesses on the core preform by virtue of the material on the outer surface of the core preform being removed parallel to the longitudinal axis of the core preform at diametrically opposed positions, filling the recesses with stress-generating rods, with the tightest possible rod packing, in a freely selectable first filling geometry, possibly filling the recesses in addition with non-stress-generating rods in a second filling geometry, sheathing the filled core preform with a jacketing tube, preparing the sheathed core preform for a fibre-drawing process, and drawing the sheathed arrangement to form in the optical fibre. A preform for producing a polarization-maintaining optical fibre contains a core preform, having a core region and a lateral region, and also contains a jacketing tube, which encloses the core preform, as well as stress-generating elements contained in the lateral region, wherein the stress-generating elements are provided in the form of recesses in the lateral region, wherein the recesses are filled with doped rods and/or undoped rods, and wherein the rod filling forms a first and/or a second arrangement geometry.

Abstract translation: 本发明涉及一种用于制造偏振保持光纤的方法，该光纤由核心区域和嵌入在该纤维体内的应力产生元件组成，具有以下方法步骤：使用内部沉积制备用于芯区域的纤芯预制棒 衬底管，内部涂覆的衬底管随后被塌缩，由于纤芯预制件的外表面上的材料在径向相对的位置处平行于芯预制件的纵向轴线移除，从而在芯预制件上产生凹陷，填充凹部 具有最可能的杆填料的应力产生杆以可自由选择的第一填充几何形状，可能地在第二填充几何形状中用非应力产生杆填充凹部，用夹套管覆盖填充的芯预制件， 准备用于纤维拉伸工艺的护套芯预制件，并绘制护套布置以形成选择 光纤。 用于制造偏振保持光纤的预制件包含具有芯区域和横向区域的芯预制件，并且还包含封装芯预制件的护套管以及包含在横向区域中的应力产生元件， 其中所述应力产生元件以横向区域中的凹部的形式提供，其中所述凹部填充有掺杂的棒和/或未掺杂的棒，并且其中所述棒填充物形成第一和/或第二布置几何形状。

公开(公告)号：US09255026B2

公开(公告)日：2016-02-09

申请号：US13787084

申请日：2013-03-06

Applicant: j-fiber GmbH

Inventor： Jurgen Rosenkranz ,  Wolfgang Haemmerle ,  Lothar Brehm ,  Katrin Roessner ,  Robert Hanf

IPC: C03B37/027 ,  C03B37/012 ,  H01S3/094

CPC classification number: C03B37/02763 ,  C03B37/01211 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/01222 ,  C03B2201/04 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/02 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/31 ,  C03B2203/34 ,  C03B2205/40 ,  H01S3/094007

Abstract: Methods for making active laser fibers include the production of an optical fiber with disturbed (or deviated) cylindrical symmetry on the glass surface of the fiber. The methods include a preform containing a central core made of glass. In one embodiment, the preform is circular and surrounded by additional glass rods and an outer glass jacket tube. In a first alternative embodiment, this preform is merged during fiber drawing. In a second alternative embodiment, the preform merged in a process forming a compact glass body with disturbed cylindrical symmetry. This compact preform is drawn into a fiber under conditions maintaining the disturbed cylindrical symmetry.

Abstract translation: 制造活性激光光纤的方法包括在纤维的玻璃表面上产生具有干扰（或偏离）圆柱对称的光纤。 该方法包括一个包含由玻璃制成的中心芯的预制件。 在一个实施例中，预成型件是圆形的并被另外的玻璃棒和外部玻璃护套管包围。 在第一替代实施例中，在纤维拉伸期间将该预制件合并。 在第二替代实施例中，预成型件在形成具有扰动的圆柱形对称的紧凑玻璃体的工艺中合并。 这种紧凑的预成型件在保持受扰的圆柱形对称性的条件下被拉入纤维中。

公开(公告)号：US20150307387A1

公开(公告)日：2015-10-29

申请号：US14261734

申请日：2014-04-25

Applicant: CORNING INCORPORATED

Inventor： James Gerald Fagan ,  Ji Wang

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/027

CPC classification number: C03B37/01282 ,  C03B37/01211 ,  C03B37/01231 ,  C03B37/014 ,  C03B37/01446 ,  C03B37/027 ,  C03B2203/31 ,  C03B2203/34 ,  C03B2203/42 ,  Y02P40/57

Abstract: A method of forming an optical fiber includes the steps of forming a silica-based soot blank with at least one silica-based soot core cane at least partially embedded in the soot blank. The soot blank with the soot core cane positioned therein is consolidated to form a preform. The preform is then drawn to form an optical fiber. The soot core cane preferably has an average bulk density within 10% of the bulk density of the soot blank, and more preferably within 5% of the bulk density of the soot blank.

Abstract translation: 形成光纤的方法包括以下步骤：形成具有至少部分地嵌入烟灰坯中的至少一个二氧化硅基烟炱芯棒的二氧化硅基烟炱坯料。 将烟灰芯棒放置在其中的烟炱坯料被固结以形成预制件。 然后将预成型件拉制以形成光纤。 烟灰芯甘蔗的平均堆积密度优选为煤烟坯的堆积密度的10％以内，更优选为煤烟坯的体积密度的5％以内。

公开(公告)号：US08526773B2

公开(公告)日：2013-09-03

申请号：US12771272

申请日：2010-04-30

Applicant: George Edward Berkey ,  Valery A Kozlov

Inventor： George Edward Berkey ,  Valery A Kozlov

IPC: G02B6/02

CPC classification number: C03B37/01217 ,  C03B37/01231 ,  C03B37/01446 ,  C03B37/02709 ,  C03B2201/08 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2203/302 ,  C03B2203/31 ,  G02B6/024

Abstract: According to some embodiments, the optical fiber comprises: (i) a core having a first index of refraction n1; (ii) a cladding surrounding the core and having a second index of refraction n2, such that n1>n2, wherein cladding has at two sets of stress rods extending longitudinally through the length of the optical fiber, wherein the two sets of stress rods have CTE coefficients and/or softening points different from one another and different from that of cladding.

Abstract translation: 根据一些实施例，光纤包括：（i）具有第一折射率n1的芯; （ii）围绕所述芯并且具有第二折射率n2的包层，使得n1> n2，其中包层具有沿着所述光纤的长度纵向延伸的两组应力棒，其中所述两组应力棒具有 CTE系数和/或软化点彼此不同，不同于包层。