http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004307301-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_beb2ac822d5922b82aa1a7c466e91125 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01426 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C13-045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C13-046 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-014 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-018 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C13-04 |
| filingDate | 2003-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd441b7d234c6194b9a9fb12d4ecd056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3ef84acab7d4ce7111d4d4dfd375361 |
| publicationDate | 2004-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2004307301-A |
| titleOfInvention | Manufacturing method of optical fiber preform |
| abstract | A preform suitable for manufacturing an optical fiber for transmitting ultraviolet light can be manufactured at extremely low cost. A cladding (3) of an optical fiber preform (1) is formed as a double of an inner cladding (4) on a core (2) side and an outer cladding (5) on an outer peripheral side thereof. By forming only the inner clad (4) by a plasma method capable of depositing high-concentration doped quartz and forming the outer clad (5) by an external method in which only relatively low-concentration doped quartz can be deposited but the deposition rate is high. And an optical fiber capable of forming an optical fiber (6) having a thick clad layer that does not leak light while ensuring a refractive index difference of 1 to 2% at an interface between the core (2) and the clad (3). The preform (1) can be manufactured in a very short time and at low cost. [Selection diagram] Fig. 1 |
| priorityDate | 2003-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.