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Class Information
Number: 65/428
Name: Glass manufacturing > Processes of manufacturing fibers, filaments, or preforms > Process of manufacturing optical fibers, waveguides, or preforms thereof > Consolidating preform (e.g., sintering, etc.) > Collapsing tube
Description: Processes including a step causing an innermost surface of a tube to cave in upon itself.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7266275 |
Nonlinear optical fibre method of its production and use thereof |
Sep. 4, 2007 |
| 7089765 |
Method of making a jacketed preform for optical fibers using OVD |
Aug. 15, 2006 |
| 7062942 |
Method of manufacturing glass optical fibre preforms and optical fibres |
Jun. 20, 2006 |
| 7010203 |
Optical fiber manufacturing method and optical fiber |
Mar. 7, 2006 |
| 7003984 |
Hybrid manufacturing process for optical fibers |
Feb. 28, 2006 |
| 6987917 |
Optical fiber preform producing method, optical fiber preform, and optical fiber |
Jan. 17, 2006 |
| 6968107 |
Holey optical fibres |
Nov. 22, 2005 |
| 6938443 |
Method for the manufacture of a quartz glass preform for an optical fiber |
Sep. 6, 2005 |
| 6892018 |
Micro-structured optical fiber |
May. 10, 2005 |
| 6883351 |
Method for fabricating a low polarization mode dispersion optical fiber |
Apr. 26, 2005 |
| 6851281 |
Method of fabricating rare earth doped optical fibre |
Feb. 8, 2005 |
| 6848277 |
Projection lithography photomasks and method of making |
Feb. 1, 2005 |
| 6847771 |
Microstructured optical fibers and preforms and methods for fabricating microstructured optical fibers |
Jan. 25, 2005 |
| 6836605 |
Optical fiber preform, production method thereof, and optical fiber produced from the preform |
Dec. 28, 2004 |
| 6821449 |
Two step etching process for an optical fiber preform |
Nov. 23, 2004 |
| 6775450 |
Micro-structured optical fibers |
Aug. 10, 2004 |
| 6754425 |
Dispersion flattened fiber with high negative dispersion and method for the manufacture thereof |
Jun. 22, 2004 |
| 6738550 |
Holey waveguide manufacture |
May. 18, 2004 |
| 6718800 |
Method of collapsing a tube for an optical fiber preform |
Apr. 13, 2004 |
| 6587633 |
Active optical fibre doped with rare earth elements |
Jul. 1, 2003 |
| 6574994 |
Method of manufacturing multi-segmented optical fiber and preform |
Jun. 10, 2003 |
| 6523369 |
Method of forming an optical fiber |
Feb. 25, 2003 |
| 6523368 |
Dispersion-managed fiber preform and fabricating method thereof by MCVD |
Feb. 25, 2003 |
| 6519974 |
Method for fabricating an optical fiber by simultaneous preform fusing and fiber drawing |
Feb. 18, 2003 |
| 6519388 |
Tube-encased fiber grating |
Feb. 11, 2003 |
| 6510711 |
Apparatus and method for sintering a sol-gel tube using a furnace having a rotating cap |
Jan. 28, 2003 |
| 6408653 |
Apparatus and method for manufacturing optical fiber preform by MCVD |
Jun. 25, 2002 |
| 6405566 |
Method and device for over-cladding an optical fiber primary preform |
Jun. 18, 2002 |
| 6173588 |
Method of making dispersion managed optical fibers |
Jan. 16, 2001 |
| 6053013 |
Apparatus and method for overcladding optical fiber preform rod and optical fiber drawing method |
Apr. 25, 2000 |
| 5917109 |
Method of making optical fiber having depressed index core region |
Jun. 29, 1999 |
| 5868815 |
Method of making an optical fiber by blowing on a preform tube to enhance collapse |
Feb. 9, 1999 |
| 5802236 |
Article comprising a micro-structured optical fiber, and method of making such fiber |
Sep. 1, 1998 |
| 5658363 |
Method of joining a tube to a rod having an annular rib, so as to form an optical fiber preform |
Aug. 19, 1997 |
| 5578106 |
Method for making optical fiber preforms by collapsing a hollow glass tube upon a glass rod |
Nov. 26, 1996 |
| 5198270 |
Method of forming a fiber preform with dopants dissolved in a liquid |
Mar. 30, 1993 |
| 5145509 |
Method of manufacturing optical fibres |
Sep. 8, 1992 |
| 5127929 |
Process for the manufacturing of optical waveguides with fusion of a sleeving tube onto a mother preform |
Jul. 7, 1992 |
| 5113035 |
Device for the production of an optical waveguide preform |
May. 12, 1992 |
| 5106401 |
Process for thermal treatment of glass fiber preform |
Apr. 21, 1992 |
| 5076824 |
Method of making fiber optical preform with pyrolytic coated mandrel |
Dec. 31, 1991 |
| 5059230 |
Fabrication of doped filament optical fibers |
Oct. 22, 1991 |
| 4944783 |
Method for producing glass preform for single mode optical fiber |
Jul. 31, 1990 |
| 4941905 |
Methods of soot overcladding an optical preform |
Jul. 17, 1990 |
| 4935045 |
Method of manufacturing a preform for asymmetrical optical fiber |
Jun. 19, 1990 |
| 4921516 |
Method of manufacturing optical fibers with elimination of paraxial refractive-index dip |
May. 1, 1990 |
| 4869743 |
Method of manufacturing an optical fiber using a preform obtained by collapsing a tube |
Sep. 26, 1989 |
| 4838915 |
Method for heating thick-walled glass tubes and apparatus therefore |
Jun. 13, 1989 |
| 4828592 |
Polarization plane maintaining optical fiber fabricating method |
May. 9, 1989 |
| 4820322 |
Method of and apparatus for overcladding a glass rod |
Apr. 11, 1989 |
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