| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4903b7b4b84e3b845aef791cad8f2e97 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-091
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-087
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-064
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C13-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-062 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C13-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-00 |
| filingDate |
2002-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27becd40c1ffce1c9eb29d91c2a483f1 |
| publicationDate |
2004-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2004020994-A |
| titleOfInvention |
Optical amplification glass fiber |
| abstract |
In order to improve the amplification characteristics of an optical amplification glass fiber having at least a core made of inorganic glass, it is necessary to propagate the pump light in a single mode and to increase the numerical aperture at the signal light wavelength. is there. An optical property of an optical fiber required for this purpose is clarified, and a glass composition realizing the optical property is provided. The optical amplification glass fiber according to the present invention selects each material so that the Abbe number of the glass constituting the core is larger than or equal to the Abbe number of the material constituting the cladding. The material constituting the core is preferably composed of an oxide glass composition containing a bismuth oxide, and particularly preferably contains bismuth oxide, silicon dioxide, aluminum oxide and divalent metal oxide as essential components. [Selection diagram] Fig. 4 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013541201-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007035131-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004058657-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8509588-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007035131-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2006093141-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9368932-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006093141-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004196649-A |
| priorityDate |
2002-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |