| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-31 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01838
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01853
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01807 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-018 |
| filingDate |
2002-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2005-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e619b049a46584b9f2743c25f8837a2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c498002c6572977173158e7f1ebabb76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a8ad5727ccac142acb46ca450d28688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f163eec8b83b00aa2737e4b7b35820d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_591ff3abf194d4f530410b15b00be316
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9312dd3e6d7a80b03f8b3e0ed432dae |
| publicationDate |
2005-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6851281-B2 |
| titleOfInvention |
Method of fabricating rare earth doped optical fibre |
| abstract |
The present invention provides a method of fabricating rare earth doped preforms and optical fibers by a combination of modified chemical vapor deposition (MCVD) process and solution doping technique said MCVD process is used to develop matched or depressed clad structure inside a silica glass substrate tube followed by deposition of porous silica soot layer containing GeO 2 , P 2 O 5 or such refractive index modifiers by the backward deposition method for formation of the core and presintering the deposited particulate layer by backward pass with flow of GeCl 4 and/or corresponding dopant halides, soaking the porous soot layer into an alcoholic/aqueous solution of RE-salts containing codopants such as AlCl 3 in definite proportion, drying, oxidation, dehydration and sintering of the RE containing porous deposit and by collapsing at a high temperature to produce the preform followed by drawing the fibers by known technique to produce fibers with suitable core-clad dimensions and geometry. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012201504-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8649650-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11407671-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108585470-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108585470-A |
| priorityDate |
2002-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |