| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e5db580deca7130dbe51805c6c608b35 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-225
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2201-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-50575
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-50597
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-5162
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-0123
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-0121
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-5051
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-50577 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-225 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-03 |
| filingDate |
2003-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a99d933d725a508e8b846dcc832b6454
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6d3534646abedec0dc9f27ee3e1d827 |
| publicationDate |
2004-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2004294883-A |
| titleOfInvention |
Control device for optical modulator |
| abstract |
A control method for reliably detecting and compensating for a phase shift between drive signals of an optical modulator with a simple configuration is provided. A control device according to the present invention provides an optical modulator for generating a signal light of a CS-RZ modulation method or the like by two LN modulators connected in series. , 20 is detected by the phase comparator 30, or the phase shift between the drive signals is determined based on the intensity information of the electric spectrum of the signal light output from the optical modulator. The phase of the drive signal is controlled so that the phase shift becomes small. As a result, the phase shift between the drive signals can be reliably detected and compensated for by a simple electric circuit. [Selection diagram] Fig. 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012247712-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014165913-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8582980-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8320772-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014174639-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007329886-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007158415-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017126039-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2017126039-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7925171-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014103231-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008172714-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011223619-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4678653-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4522417-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100860415-B1 |
| priorityDate |
2003-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |