公开(公告)号：US5573571A

公开(公告)日：1996-11-12

申请号：US347978

申请日：1994-12-01

Applicant: Nonna Kopylov ,  Ahmet R. Kortan

Inventor： Nonna Kopylov ,  Ahmet R. Kortan

IPC: G02B6/00 ,  C03B37/012 ,  C03C13/04 ,  C03B37/02

CPC classification number: C03B37/01265 ,  C03B37/01274 ,  C03B2201/10 ,  C03B2201/62 ,  C03B2201/82 ,  C03B2201/84 ,  C03B2201/86 ,  C03B2203/12 ,  C03B2203/22 ,  C03B2203/24 ,  C03B2205/02

Abstract: A method and apparatus are provided for drawing a self-aligned core fiber free of surface contamination and inserting the core fiber into a cladding material to make an optical fiber preform. Single or multi-mode optical fibers having high quality core-clad interfaces can be directly drawn from the preforms described herein.

Abstract translation: 提供了一种方法和装置，用于绘制不受表面污染的自对准芯纤维，并将芯纤维插入包层材料中以制造光纤预制件。 具有高质量芯包层界面的单模或多模光纤可直接从本文所述的预成型件中拉出。

公开(公告)号：US5160521A

公开(公告)日：1992-11-03

申请号：US718705

申请日：1991-06-21

Applicant: Danh C. Tran

Inventor： Danh C. Tran

IPC: C03B37/012 ,  C03C13/04

CPC classification number: C03C13/043 ,  C03B37/01268 ,  C03B37/01271 ,  C03C13/042 ,  C03B2201/82 ,  C03B2201/86 ,  Y10S65/15 ,  Y10S65/16

Abstract: A method for fabricating defect-free optical fiber preforms without light scattering defects such as core-clad interface bubbles, core-clad crystalline inclusions and core glass crystals involves first forming a cladding glass shell preferably by rotational casting, then separately melting core glass inside a cylindrical crucible and quenching using metallic quenching blocks to prevent crystal formation in the core glass, next heating the core containing crucible to the core glass softening point and also heating the cladding tube containing mold to the glass transition temperature of the cladding glass, then placing the cladding tube containing mold inside the core glass crucible and pushing it downwardly with high pressure so that the softened core glass is forced into the cladding glass tube, and finally the preform is annealed to remove thermal stress. Subsequently, the preform is drawn into optical fibers using conventional technology.

Abstract translation: 首先，通过旋转铸造来首先形成包层玻璃壳，然后将芯玻璃内部分别熔融，然后将核心玻璃分别熔融 使用金属淬火块进行淬火，以防止芯玻璃中的晶体形成，接着将含芯坩埚的芯体加热到芯玻璃软化点，并将含有模具的包层管加热到包层玻璃的玻璃化转变温度，然后将 在芯玻璃坩埚内装有包覆模具，并以高压将其向下推压，使得软化的芯玻璃被迫进入包层玻璃管，最后对预制件进行退火以去除热应力。 随后，使用常规技术将预成型件拉入光纤。

公开(公告)号：US4908053A

公开(公告)日：1990-03-13

申请号：US232998

申请日：1988-08-17

Applicant: Junji Nishii ,  Ikuo Inagawa ,  Takashi Yamagishi ,  Shozo Morimoto ,  Ryuji Iizuka

Inventor： Junji Nishii ,  Ikuo Inagawa ,  Takashi Yamagishi ,  Shozo Morimoto ,  Ryuji Iizuka

IPC: C03B37/012 ,  C03B37/027 ,  C03B37/029 ,  C03C13/04

CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01225 ,  C03B37/01271 ,  C03B37/029 ,  C03C13/043 ,  C03B2201/86 ,  C03B2205/08 ,  C03B2205/10 ,  C03B2205/14 ,  C03B2205/16 ,  Y10S65/15

Abstract: A process for producing a chalcogenide glass fiber which comprises placing a cylindrical chalcogenide glass preform vertically in a cylindrical crucible furnished with a nozzle in its bottom portion, heating the crucible only at vicinity of the nozzle, and continuously drawing the glass into a fiber with the temperature of the crucible at the vicinity of the nozzle being maintained at such a level that the viscosity of the glass is within the range of 10.sup.3 to 10.sup.7.5 poises.

Abstract translation: 一种硫族化物玻璃纤维的制造方法，其特征在于，将圆筒状硫族化物玻璃预制件垂直放置在其底部配有喷嘴的圆筒状坩埚中，仅在喷嘴附近加热坩埚，并且将玻璃连续地拉入纤维中 喷嘴附近的坩埚的温度保持在玻璃的粘度在103〜107.5泊的范围内。

公开(公告)号：US4652288A

公开(公告)日：1987-03-24

申请号：US758079

申请日：1985-07-23

Applicant: Mitsunori Saito

Inventor： Mitsunori Saito

IPC: C03B37/012 ,  C03B37/027 ,  C03B37/028 ,  C03C13/04 ,  C03C25/10 ,  C03B37/02

CPC classification number: C03C25/105 ,  C03B37/01214 ,  C03B37/027 ,  C03B37/028 ,  C03C13/04 ,  C03C13/042 ,  C03C13/043 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2203/40 ,  Y10S65/15 ,  Y10S65/16

Abstract: A chalcogenide glass rod and/or a fluoride glass rod are covered with a thermally shrinkable synthetic resin tube, the resulting assembly being heated under vacuum to produce a preform, and a thermally shrinkable synthetic resin tube with a plurality of said preforms formed in a bundle and inserted thereinto is drawn again under heating.

Abstract translation: 硫化物玻璃棒和/或氟化物玻璃棒被热收缩的合成树脂管覆盖，所得的组件在真空下加热以产生预成型件，并且具有多个所述预成型件形成为束的热收缩合成树脂管 并插入其中再次加热。

公开(公告)号：US4188089A

公开(公告)日：1980-02-12

申请号：US846238

申请日：1977-10-27

Applicant: Georg Gliemeroth ,  Lothar Meckel

Inventor： Georg Gliemeroth ,  Lothar Meckel

IPC: C03B37/018 ,  C03C3/32 ,  C03C13/04 ,  G02B6/00 ,  G02B6/10 ,  G02B5/14

CPC classification number: C03B37/01807 ,  C03B37/01861 ,  C03C13/043 ,  G02B6/102 ,  C03B2201/86 ,  C03B2201/88 ,  C03B2207/87 ,  Y10S65/15

Abstract: Optical fibers having high infrared transmittancies are produced by chemical vapor deposition of vitreous layers composed predominantly of anions S, Se and/or Te onto tubes or rods. Cations are Ge, Si, P, B, As, Sb and/or Ti. Conventional CVD techniques are employed to produce stepped-refractive index gradient profiles in the fibers except that an inert gas and/or a halogen(s) is used as the propellant gas.

Abstract translation: 具有高红外透射率的光纤通过主要由阴离子S，Se和/或Te组成的玻璃质层在管或棒上进行化学气相沉积而产生。 阳离子是Ge，Si，P，B，As，Sb和/或Ti。 采用常规CVD技术来在纤维中产生阶梯折射率梯度分布，除了使用惰性气体和/或卤素作为推进剂气体。

公开(公告)号：US3824087A

公开(公告)日：1974-07-16

申请号：US29862372

申请日：1972-10-18

Applicant: PHILIPS CORP

Inventor： CORNET J ,  ROSSIER D

IPC: C03B5/00 ,  C03B27/03 ,  C03B32/00 ,  C03C3/32 ,  C03C4/00 ,  C03B29/00 ,  C03B5/16 ,  C03B27/00

CPC classification number: C03B32/00 ,  C03B27/03 ,  C03B2201/86 ,  C03C3/321 ,  Y10S501/901

Abstract: A METHOD FO MANUFACTURING BINARY CHLOCOGENIDE GLASS TYPES FROM ARSENIC AND TELLURIUM IN ATTOMIC RATIOS OF FROM 30 TO 60% OF ARSENIC. ACCORDING TO THIS METHOD A TEMPERING TREATMMENT IN STAGES IS PERFORMED IN A BATH CONTAINING MOLTEN SALT.

公开(公告)号：US3607163A

公开(公告)日：1971-09-21

申请号：US3607163D

申请日：1968-06-12

Applicant: BARR & STROUD LTD

Inventor： SMITH HOWARD CAMERON ,  ALLAN WILLIAM BELL

IPC: C03B19/09 ,  C03B37/012 ,  C03B37/027 ,  C03B19/04 ,  C03B37/02

CPC classification number: C03B37/027 ,  C03B19/095 ,  C03B37/01271 ,  C03B37/01297 ,  C03B2201/86 ,  C03B2203/16

Abstract: This invention relates to a method of producing a tube from a glass that gives off undesirable vapors when heated in which glass cullet is placed into a horizontally disposed forming tube that is made of a material which is not wetted by the glass and has a lower coefficient of expansion (for instance the forming tube may be made of a borosilicate glass). The cullet is heated to melt the cullet while the forming tube rotates so that it coats the tube. The forming tube is cooled until the glass from the cullet has solidified as a tube. This tube may be used for making fibers in which a rod is subsequently inserted into this tube.

公开(公告)号：US3379558A

公开(公告)日：1968-04-23

申请号：US40102964

申请日：1964-10-02

Applicant: AMERICAN OPTICAL CORP

Inventor： UPTON LEE O

IPC: C03B37/028 ,  C03B37/15 ,  H01J29/24 ,  H01J29/89

CPC classification number: C03B37/15 ,  C03B37/028 ,  C03B2201/34 ,  C03B2201/86 ,  H01J29/24 ,  H01J29/892