| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ce384cea17765179fd01cd5c80f294ef |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-1606
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-1618
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-1698 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-06716 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-17 |
| filingDate |
1994-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95f7dda66d507e50e92f31f00040fa96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73733321403c33dc0f12d320c748b296
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f9de5bbff69e3f597e67dee3860ddfa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b036b62926725ac141cbb282f69cde2 |
| publicationDate |
1995-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2290150-A |
| titleOfInvention |
Doped optical waveguide amplifier |
| abstract |
The core of a low phonon energy glass optical fibre is doped with trivalent Dysprosium ions for application as an efficient optical fibre amplifier operating around 1.3 mu m. The device utilises the transition <6>H9/2-<6>F11/2 to <6>H15/2. The low phonon energy (high quantum efficiency) glasses include mixed halides, chalcogenides and chalcohalides. Improvements in efficiency can be achieved by co-doping of the fibre core with Eu<3+> and/or Tb<3+> ions. <IMAGE> |
| priorityDate |
1994-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |