http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H07254757-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1af8df51ce24ca931ae718fb747f6aa0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-516 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-508 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-532 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-61 |
| filingDate | 1994-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43faffcc4ca7daa1030cacb57aca694a |
| publicationDate | 1995-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H07254757-A |
| titleOfInvention | Semiconductor laser capable of polarization modulation |
| abstract | (57) [Summary] [Purpose] A semiconductor laser capable of polarization modulation capable of suppressing output fluctuation when the polarization state is switched, and its use. [Structure] A distributed feedback semiconductor laser having a phase shift region. The phase shift region has a substance 112 having a Pockels effect. When a voltage is applied to the electrode 113 with an appropriate constant voltage applied to the two electrodes 109, the refractive index of the substance layer 112 changes due to the Pockels effect. At this time, the phase matching wavelength of the TE mode hardly changes, but the phase matching wavelength of the TM mode changes. The TM mode threshold gain decreases and becomes smaller than the TE mode threshold gain, and the TM mode light is output. Since the phase matching wavelength of the TE mode hardly changes before and after the voltage is applied to the electrode 113, the fluctuation of the output light intensity until the TM mode oscillates becomes small. |
| priorityDate | 1994-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.