| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_66c37c127b4c84bee2f039e646d7a7ed |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01M11-3172 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-47 |
| filingDate |
1984-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d74041781afdbf1d6f84824dc4603f48 |
| publicationDate |
1984-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0125758-A2 |
| titleOfInvention |
Coherent reflectometers |
| abstract |
An optical reflectometer in which the output from a laser 11 is passed through a ramped phase modulator 12 and an optical fibre bi-directional coupler 13 to a transmission path 15, e.g. an optical fibre. Part of the light is coupled out to a mirror 14 and is reflected to form a local oscillator signal which is mixed in the coupler with backscattered light from the fibre. The mixed signals are applied to a detector 16. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0346232-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2601134-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0346232-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8800336-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9008305-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0193242-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0193242-A2 |
| priorityDate |
1983-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |