| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd8dff0cc6d024e095d5decaf9202f49 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-2059
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-3068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-2063 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-305
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-1228 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-00 |
| filingDate |
1979-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_229651d3fd80db4659fe77492f1a669f |
| publicationDate |
1981-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4305048-A |
| titleOfInvention |
Mode stabilized semiconductor laser |
| abstract |
Longitudinal mode control is achieved in a heterojunction semiconductor laser (201-208) by doping the active region (203) of the laser with a deep level electron or hole trap. The trap is chosen to have a carrier capture cross section σ e and an optical cross section σ o such that the ratio of P, the average number of photons per cubic centimeter, to P s is between 0.1 and 100 where P s is equal to (Nσ e V/σ o C o ), N is the carrier density, V is the carrier thermal velocity, and C o is the speed of light in the material. In a specific embodiment the active region is bombarded by photons to achieve deep level electron traps in the active region. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4446557-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3914001-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4439782-A |
| priorityDate |
1979-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |