公开(公告)号：US06698247B2

公开(公告)日：2004-03-02

申请号：US09848904

申请日：2001-05-04

Applicant: David L. Tennent ,  Joseph M. Whalen

Inventor： David L. Tennent ,  Joseph M. Whalen

IPC: C03B37075

CPC classification number: C03B37/01413 ,  C03B19/106 ,  C03B19/1415 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2207/30 ,  C03B2207/38

Abstract: A method for making silica includes delivering a silica precursor comprising a perfluorinated group to a conversion site and passing the silica precursor through a conversion flame to produce silica soot.

Abstract translation: 制备二氧化硅的方法包括将包含全氟化基团的二氧化硅前体输送到转化位点并使二氧化硅前体通过转化火焰以产生二氧化硅烟灰。

公开(公告)号：US4426216A

公开(公告)日：1984-01-17

申请号：US337451

申请日：1982-01-06

Applicant: Shin Satoh ,  Kenzo Susa ,  Iwao Matsuyama ,  Tsuneo Suganuma

Inventor： Shin Satoh ,  Kenzo Susa ,  Iwao Matsuyama ,  Tsuneo Suganuma

IPC: C03B19/12 ,  C03C1/00 ,  C03B19/06

CPC classification number: C03B19/12 ,  C03C1/006 ,  C03B2201/02 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/075 ,  Y10S65/901

Abstract: Optical glass is produced by heating a porous gel to a high temperature to partly sinter it, heating it in a chlorine-containing atmosphere to subject it to hydroxyl group removal treatment, and then further heating it to sinter it. The optical glass produced by this process does not rise in bubbles even when heated.

Abstract translation: 通过将多孔凝胶加热至高温部分烧结而制成光学玻璃，在含氯气氛中加热，进行羟基去除处理，然后进一步加热烧结。 通过该方法制造的光学玻璃即使在加热时也不会起泡。

公开(公告)号：US4165224A

公开(公告)日：1979-08-21

申请号：US888050

申请日：1978-03-17

Applicant: John Irven ,  Andrew P. Harrison

Inventor： John Irven ,  Andrew P. Harrison

IPC: C03B37/018 ,  G02B6/00 ,  C03B37/02 ,  C03C25/02

CPC classification number: C03B37/01853 ,  C03B37/01861 ,  C03B2201/06 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22

Abstract: In the manufacture of silica optical fibers a tube having an internal coating of a volatile dopant is locally heated by a hot zone repeatedly traversed along its length to promote shrinkage and finally collapse of the tube bore. During the shrinkage prior to the final collapse traversal a gas flow of oxygen and a halide of the volatile dopant is maintained through the tube in order firstly to provide a small overpressure to ensure circularity in the shrinkage and secondly to compensate for the tendency for dopant to be lost by volatilization.

Abstract translation: 在二氧化硅光纤的制造中，具有挥发性掺杂剂的内部涂层的管通过沿其长度重复穿过的热区域局部加热，以促进管孔的收缩并最终塌缩。 在最终塌缩过程之前的收缩期间，通过管保持氧气和挥发性掺杂剂的卤化物的气流，以便首先提供小的过压以确保收缩的圆形度，其次补偿掺杂剂的倾向 被挥发失去。

公开(公告)号：US4157906A

公开(公告)日：1979-06-12

申请号：US879154

申请日：1978-02-21

Applicant: Alan C. Bailey

Inventor： Alan C. Bailey

IPC: C03B37/018 ,  C03B8/00 ,  C03B20/00 ,  C03B37/014 ,  C03B37/027 ,  G02B6/00 ,  C03B37/00

CPC classification number: C03B37/027 ,  C03B37/01446 ,  C03B37/01486 ,  C03B37/02736 ,  C03B2201/06 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  Y10S65/90

Abstract: A method of making glass optical waveguides by the flame hydrolysis technique. Particles of glass soot produced by flame hydrolysis are deposited on the outside surface of a mandrel to form a porous preform. The soot particles closer to the mandrel have a refractive index greater than that of the soot disposed toward the outer surface of the preform. The mandrel is removed and the resultant hollow soot preform is supported in a draw furnace through which a helium-rich gas flows. The preform is heated to a temperature sufficient to cause said soot to consolidate and simultaneously permit an optical waveguide filament to be drawn therefrom.

Abstract translation: 通过火焰水解技术制造玻璃光波导的方法。 通过火焰水解产生的玻璃烟炱颗粒沉积在心轴的外表面上以形成多孔预制件。 靠近心轴的烟灰颗粒的折射率大于朝向预成型体的外表面设置的烟灰的折射率。 将心轴移除，并将得到的空心烟炱预制件支撑在富氦气流经的拉制炉中。 将预成型件加热到足以使所述烟灰固结并同时允许从其中拉出光波导细丝的温度。

公开(公告)号：US3782914A

公开(公告)日：1974-01-01

申请号：US3782914D

申请日：1972-03-30

Applicant: CORNING GLASS WORKS

Inventor： DE LUCA R ,  KECK D ,  MAURER R

IPC: C03B37/027 ,  C03C13/04 ,  C03C25/00 ,  C03C15/00 ,  C03C25/02

CPC classification number: C03B37/027 ,  C03B2201/06 ,  C03B2201/42 ,  C03B2205/16 ,  C03C13/045 ,  C03C25/002

Abstract: OPTICAL WAVEGUIDES INCLUDE A CORE OF DOPED SIO2 AND A CLADDING OF PURE SIO2 OR DOPED SIO2. THE DOPANT, WHICH IS AN OXIDE OF A MULTIVALENT ELEMENT, BECOMES CHEMICALLY REDUCED DURING FABRICATION WHICH USUALLY INCLUDES HEATING THE WAVEGUIDE SO THAT IT CAN BE DRAWN. FOR EXAMPLE, TITANIUM DIOXIDE, A COMMONLY USED DOPANT, HAS TI+4 IONS WHICH ARE REDUCED TO TI+3 IONS DURING THE FABRICATION OF THE WAVEGUIDES. THESE REDUCED IONS INCREASE THE ATTENUATION OF THE WAVEGUIDE. FOR EXAMPLE, REDUCED TITANIUM DIOXIDE IS BROWN. IT ABSORBS LIGHT IN THE BLUE REGION AND THE AMOUNT OF TI+3 IONS IN THE GLASS MUST BE QUITE LOW IN ORDER TO GET THE DESIRED WAVEGUIDE TRANSMISSION PROPERTIES. THE REDUCED MULTIVALENT ELEMENT ION ATTENUATION IS MINIMIZED BY HEAT TREATING THE WAVEGUIDE FIBER AT TEMPERATURES IN THE RANGE OF APPROXIMATELY 800 TO 1,000*C. FOR TIMES OF APPROXIMATELY SIX HOURS OR LESS. THE REDUCED MULTIVALENT ION IS OXIDIZED WITH HYDROXYL IONS DELIBERATELY RETAINED IN THE GLASS AND WHICH SERVE AS THE OXIDIZING AGENT.