http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111541148-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-22 |
| filingDate | 2020-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111541148-B |
| titleOfInvention | Preparation process of 25G anti-reflection laser |
| abstract | The invention discloses a preparation process of a 25G anti-reflection laser, which comprises a substrate, and an active area, a first cladding and a diffraction grating layer which are sequentially arranged on the substrate, wherein one end of the first cladding and one end of the diffraction grating layer are provided with end face etching areas, the bottoms of the end face etching areas are positioned in the substrate, and anti-reflection layers grow in the end face etching areas; the diffraction grating layer and the anti-reflection layer are sequentially covered with a second cladding layer, a contact layer and a p-metal electrode layer, the lower surface of the substrate is plated with an n-metal electrode layer, one end of the anti-reflection layer is plated with an anti-reflection coating layer, and the other end of the anti-reflection layer is plated with a high-reflection coating layer. The preparation process is simple to realize, original characteristics of the laser are not changed, the light waveguide layer on the end face and the active region layer are staggered up and down, so that light cannot enter the active region when returning along the original path, the problem of disturbance of output end light reflection on the active region is solved, an expensive optical isolator is not used in the packaging process, and the packaging cost is reduced. |
| priorityDate | 2020-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.