http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113640220-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9de52bba13e16028dffa8775e3f3f28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-31 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-01 |
| filingDate | 2021-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84b615deb0808f745b2b668c25ad2064 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b4d6662b3b7e9ac3c42535ff5be33ec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44db82825ac097e79a7cdf7a7d799730 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4e489b334239e68043093bf70e2a257 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2bf109c505ba317e0fe1cc4aabf302f |
| publicationDate | 2021-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113640220-A |
| titleOfInvention | On-Chip Fourier Transform Spectrometer Based on Double Layer Helical Waveguide |
| abstract | An on-chip Fourier transform spectrometer based on a double-layer helical waveguide, which sequentially includes a waveguide input coupler, a 1×N optical beam splitter, N double-layer waveguide Y-branch structures, N double-layer helical waveguides with increasing lengths, N double-layer waveguide Y-bifurcation structures placed in opposite directions and N Ge-Si detectors. The invention utilizes the group refractive index difference of odd mode and even mode in the double-layer waveguide to form an unequal-arm Mach-Zehnder interferometer structure, and utilizes N double-layer spiral waveguides with increasing lengths to realize the Fourier transform based on spatial heterodyne coherence By transforming the spectrometer, the measured interference fringes are reconstructed by a regression algorithm. The invention can meet the application requirements of the Fourier transform spectrometer for miniaturization and portability, and can solve the problem that the spectrometer on the existing silicon substrate is sensitive to temperature. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114265150-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114265150-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114371128-A |
| priorityDate | 2021-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.