| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c68daddc23782e5dc9af48dd8608e21 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B2210-074
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-09408
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B2210-075
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-06754
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B2210-071 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-0777
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-0775
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-2931
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-2912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-291
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-29 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-067 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-094
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B17-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B3-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-06 |
| filingDate |
1990-07-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1998-04-30^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
PT-94781-B |
| titleOfInvention |
TELECOMMUNICATION OPTICAL FIBER CABLE UNDERSTANDING SIGNAL AMPLIFIERS AND AMPLIFIERS FOR DITO CABO |
| abstract |
An optical fiber telecommunication line according to the invention comprises active core optical fiber amplifiers of the transmitted signals. Two laser sources (19, 20) of pumping optical radiation are connected to each active core optical fiber present in the amplifiers of the line, one for each end of a single active core optical fiber. Of these two laser sources (19, 20) of pumping optical radiation the first one (19) is put into service and the second one (20) is kept as reserve to be put into service when the first one fails. Moreover the two pumping optical radiation sources (19, 20) are associated to a microprocessing circuit (29) able to oblige them to send alarm signals about the state of the amplifier to the terminal stations of the line and to received from these latter the control signals for the exchange of functioning between the two pumping optical radiation sources (19, 20). |
| priorityDate |
1989-07-21^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |