http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61278770-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be055db3c1a09879df07379ba969e223 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R31-26 |
| filingDate | 1985-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fade7f7158fa0a6a797892d24cfe720 |
| publicationDate | 1986-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S61278770-A |
| titleOfInvention | Frequency characteristic measuring device for light receiving element |
| abstract | PURPOSE: To measure up to 1GHz easily by light intensity modulating laser light by a waveguide type light switch having secondary electric effect, giving it to a photo-electric element and measuring frequency characteristic of the output by a spectrum analyzer etc. n CONSTITUTION: A waveguide type light switch (a thin PLZT film in embodiment) 2 to which unmodulated light output is supplied from a semiconductor laser 1 is driven by a sweep oscillation signal from a sweep oscillation signal generating section 3, and light intensity modulates the unmodulated light output, and leads the modulated light output to a light receiving element 4, an object of measurement, through optical fiber. A photoelectric current signal, output of the light receiving element 4, is inputted to an observation instrument 5 such as an oscilloscope or a spectrum analyzer etc. and frequency characteristic of the photo-electric element 4 is measured. In such a way, frequency characteristic of a light receiving element can be measured to about 1GHz easily even a cheap semiconductor laser that does not require high frequency characteristic. n COPYRIGHT: (C)1986,JPO&Japio |
| priorityDate | 1985-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID449325759 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID159452 |
Total number of triples: 13.