| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d00bdcfb02e6712242a9271414fcdd7d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-2935
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04J14-0221
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-2916 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J14-02 |
| filingDate |
2002-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2007-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13c69bb12c0af8f6e9906ef28bd07430
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62cab7a5d3d3277895baa4b684ad1ba9 |
| publicationDate |
2007-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7197245-B1 |
| titleOfInvention |
System and method for managing system margin |
| abstract |
An optical communication system is operable to communicate a plurality of wavelength signals at a bit rate of at least 9.5 gigabits per second over a multiple span communication link spanning at least 400 kilometers without optical regenerators. The plurality of wavelength signals include a bandwidth of more than 32 nanometers separated into at least 160 optical channels. The system includes a plurality of optical transmitters implementing a forward error correction (FEC) coding technique. The FEC encoded wavelength signals comprise a bit error rate of 10 −09 or better after FEC decoding. The system also includes at least five (5) optical add/drop multiplexers (OADMs), each coupled to one or more spans of the multiple span communication link. The system further includes a plurality of amplifiers each coupled to one or more spans of the communication link, at least a majority of the amplifiers comprise a distributed Raman amplification stage. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011026928-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8521020-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013121693-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009116842-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7734191-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008199181-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012045212-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7941049-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8068735-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7660528-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006098991-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7565083-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7826746-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7974002-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007188851-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7444078-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011008039-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006257148-A1 |
| priorityDate |
2002-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |