| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f238e7fd72ba8a5336cca207abd7fe70 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-176 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C4-0071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-097
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C13-046 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-17 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C13-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C3-097 |
| filingDate |
2001-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_010a66413a66ea6d46e2bd479c007210
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_693cf33fa8a3f5e09c74891e2255fee2 |
| publicationDate |
2002-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1139522-A3 |
| titleOfInvention |
Silica glass composition with lasing properties, an optical waveguide and a method of amplifying optical signals |
| abstract |
A thulium doped silica based glass capable of supporting lasing activity includingnTm 3+ as a lasing species disposed in a host composition, including oxides ofngermanium, silicon and tantalum. The preferred concentration of silicon in the hostncomposition being between 15-25 weight percent. The preferred concentration ofngermanium in the host composition being between 0.1-1 weight percent. Thenpreferred concentration of tantalum in the host composition is greater than 15nweight percent. The preferred concentration of thulium ions being in the range ofn500 -1000 parts per million by weight. |
| priorityDate |
2000-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |