http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114172020-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3609942335f63e5ee59b16684cc6fea |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-3013 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-1212 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-12 |
| filingDate | 2021-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e252b83a819576b9214d215b42f6b0b1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bd901915fd4743a168b3511b52d86e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_601be40f3e34c76b75a6011efd66c1fa |
| publicationDate | 2022-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114172020-A |
| titleOfInvention | Laser and preparation method thereof |
| abstract | The invention relates to a laser and a preparation method thereof. The preparation method of the laser comprises the following steps: providing a silicon substrate; forming an active layer on the silicon substrate, the active layer comprising a group III-V quantum dot material; forming an upper waveguide layer on the upper surface of the active layer; and forming a grating in the upper waveguide layer by using an equivalent chirp technology. According to the preparation method of the laser, the traditional quantum well active layer is replaced by the quantum dot active layer, so that the characteristic that the quantum dot is insensitive to dislocation is fully utilized, and the light emitting efficiency of the laser is improved; and moreover, the grating in the waveguide layer is formed by adopting the equivalent chirp technology, so that the manufacturing cost is reduced, the efficiency is improved, and the method is suitable for low-cost large-scale manufacturing. In addition, the equivalent chirp technology can flexibly adjust the space between the grating and the neutron grating so as to realize accurate selection of the wavelength and be beneficial to realizing the multi-wavelength high integration of the laser. |
| priorityDate | 2021-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.