http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114465090-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_80c1018afecefce1576345e75c62fb9a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-3013 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-1228 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-12 |
| filingDate | 2022-04-13^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74c918164fb9afbd764970f099f55ad8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ea4c0be1f8a787285378262bb7b4c9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08ee2154d213bf1f7cdf4ad46b6004da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b026409ebd81e202be11be381957a37 |
| publicationDate | 2022-05-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114465090-A |
| titleOfInvention | A kind of multi-junction distributed feedback laser and preparation method thereof |
| abstract | The invention discloses a multi-junction distributed feedback laser and a preparation method thereof, wherein the multi-junction distributed feedback laser comprises: a substrate; at least two layers of active light-emitting layers located on the same side of the substrate; The source light-emitting layers are stacked along a first direction, and the first direction is a direction perpendicular to the substrate; a layer of tunnel junction gratings is arranged between the active light-emitting layers of two adjacent layers, and the tunnel junction gratings include alternately arranged along the second direction. The tunnel junction part and the filling part; wherein, the active light-emitting layers on both sides of the tunnel junction grating are electrically connected through the tunnel junction part; the tunnel junction grating can make the active layers on both sides of the tunnel junction grating form a periodically distributed carrier The carrier is injected so as to have the effect of a gain coupling grating, and the second direction is perpendicular to the first direction. The technical solutions provided by the embodiments of the present invention achieve the improvement of the single-mode yield rate of the DFB laser and simultaneously improve the quantum efficiency and reliability of the laser. |
| priorityDate | 2022-04-13^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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