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Class Information
Number: 65/426
Name: Glass manufacturing > Processes of manufacturing fibers, filaments, or preforms > Process of manufacturing optical fibers, waveguides, or preforms thereof > Drying, dehydration, oh removal or prevention
Description: Processes wherein moisture or hydroxyl radicles are eliminated or prevented from forming on the optical fiber, waveguide, or preform.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7546750 |
Method for fabricating optical fiber using deuterium exposure |
Jun. 16, 2009 |
| 7486862 |
Optical fiber and manufacturing method thereof |
Feb. 3, 2009 |
| 7404302 |
Method of depositing glass soot |
Jul. 29, 2008 |
| 7391946 |
Low attenuation optical fiber and its producing method in MCVD |
Jun. 24, 2008 |
| 7366388 |
Hollow-core optical fiber and method of making same |
Apr. 29, 2008 |
| 7130513 |
Glass-body-producing method and optical glass body and optical fiber |
Oct. 31, 2006 |
| 7093465 |
Method for heat treating synthetic quartz glass for optical use |
Aug. 22, 2006 |
| 6904772 |
Method of making a glass preform for low water peak optical fiber |
Jun. 14, 2005 |
| 6851281 |
Method of fabricating rare earth doped optical fibre |
Feb. 8, 2005 |
| 6845636 |
Apparatus for dehydrating and consolidating an optical fiber preform and method of the same |
Jan. 25, 2005 |
| 6843076 |
Single step laydown method of making dry fiber with complex fluorine doped profile |
Jan. 18, 2005 |
| 6813908 |
Treating an optical fiber preform with carbon monoxide |
Nov. 9, 2004 |
| 6799440 |
Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvement |
Oct. 5, 2004 |
| 6776012 |
Method of making an optical fiber using preform dehydration in an environment of chlorine-containing gas, fluorine-containing gases and carbon monoxide |
Aug. 17, 2004 |
| 6701752 |
Synthesized silica glass optical member and method for manufacturing the same |
Mar. 9, 2004 |
| 6672109 |
Silica glass member, method for producing the same, and projection aligners using the same |
Jan. 6, 2004 |
| 6631628 |
Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform |
Oct. 14, 2003 |
| 6588229 |
Method for controlling heat treatment in process of fabricating high purity silica glass |
Jul. 8, 2003 |
| 6578387 |
Method of fabrication of rare earth doped preforms for optical fibers |
Jun. 17, 2003 |
| 6578382 |
Synthetic quartz glass for optical use, heat treatment method and heat treatment apparatus for the same |
Jun. 17, 2003 |
| 6550277 |
Quartz glass body for optical component and process for manufacture thereof |
Apr. 22, 2003 |
| 6532774 |
Method of providing a high level of rare earth concentrations in glass fiber preforms |
Mar. 18, 2003 |
| 6532767 |
Methods for producing fused silica glass |
Mar. 18, 2003 |
| 6508084 |
Method for producing optical quartz glass for excimer lasers and vertical-type heating furnace |
Jan. 21, 2003 |
| 6499318 |
Glass optical waveguides passivated against hydrogen-induced loss increases |
Dec. 31, 2002 |
| 6477864 |
Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform |
Nov. 12, 2002 |
| 6477305 |
Low water peak optical waveguide and method of manufacturing same |
Nov. 5, 2002 |
| 6474107 |
Fluorinating an optical fiber preform in a pure aluminum oxide muffle tube |
Nov. 5, 2002 |
| 6442973 |
Synthetic silica glass and its manufacturing method |
Sep. 3, 2002 |
| 6438999 |
Decreased H2 sensitivity in optical fiber |
Aug. 27, 2002 |
| 6354112 |
Method of depositing glass soot with controlling reaction chamber humidity to prevent accumulation of excess soot |
Mar. 12, 2002 |
| 6345519 |
Method of reducing break sources in drawn fibers by active oxidation of contaminants in a reducing atmosphere |
Feb. 12, 2002 |
| 6334338 |
Sol gel process of making a fiber preform with removal of oxide particles |
Jan. 1, 2002 |
| 6309991 |
Silica with low compaction under high energy irradiation |
Oct. 30, 2001 |
| 6266980 |
Centerline protection using heavy inert gases |
Jul. 31, 2001 |
| 6253580 |
Method of making a tubular member for optical fiber production using plasma outside vapor deposition |
Jul. 3, 2001 |
| 6131415 |
Method of making a fiber having low loss at 1385 nm by cladding a VAD preform with a D/d<7.5 |
Oct. 17, 2000 |
| 6128928 |
Optical fiber resistant to hydrogen-induced attenuation |
Oct. 10, 2000 |
| 5961682 |
Method of fabricating optical fiber doped with rare earth element using volatile complex |
Oct. 5, 1999 |
| 5938811 |
Method for altering the temperature dependence of optical waveguides devices |
Aug. 17, 1999 |
| 5796903 |
Heavy metal-oxide glass optical fibers for use in laser medical surgery and process of making |
Aug. 18, 1998 |
| 5735921 |
Method of reducing laser-induced optical damage in silica |
Apr. 7, 1998 |
| 5713979 |
Heat treatment facility for synthetic vitreous silica bodies |
Feb. 3, 1998 |
| 5666454 |
Preform for optical fiber and method of producing optical fiber |
Sep. 9, 1997 |
| 5656057 |
Method for drying and sintering an optical fiber preform |
Aug. 12, 1997 |
| 5609666 |
Process of producing preforms for silica glass optical waveguides while flowing gas through a tubular substrate |
Mar. 11, 1997 |
| 5565014 |
Process of manufacturing a vitreous silica product including hydrothermally drying a collordal sol-gel |
Oct. 15, 1996 |
| 5562752 |
Process of manufacturing vitreous silica product including hydrothermally treating a colloidal sol-gel |
Oct. 8, 1996 |
| 5397372 |
MCVD method of making a low OH fiber preform with a hydrogen-free heat source |
Mar. 14, 1995 |
| 5306322 |
Process for thermal treatment of glass fiber preform |
Apr. 26, 1994 |
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