http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009298664-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6dd74b20fbf2e0ebf10c7bfad4f6c8c5 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P40-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-23 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01446 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-02727 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-014 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-00 |
| filingDate | 2008-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3142ec95129489f33cbbdf9dd8fd6416 |
| publicationDate | 2009-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009298664-A |
| titleOfInvention | Rare earth doped optical fiber manufacturing method |
| abstract | A method of manufacturing a rare earth-doped optical fiber effective for suppressing photodarkening is provided. When an optical fiber preform contains 10 to 100 wtppm OH groups and the optical fiber preform is drawn into an optical fiber, 0.5 ≦ α f / α p ≦ 0.95 (however, , Α p represents the OH absorption loss calculated based on the OH concentration distribution and electric field strength distribution of the optical fiber preform before drawing, and α f represents the OH absorption loss of the optical fiber after drawing. Draw according to the drawing conditions. It is preferable that the OH groups in the optical fiber preform are distributed in the core portion to which the rare earth is added. [Selection] Figure 1 |
| priorityDate | 2008-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.