| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_41ebcabde9efb3933159f6a4007c1309
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_008fbc9cb4123e66ed9763318be8750b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-3402
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J2003-4332
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-06113
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J2003-423
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J2003-102
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S5-4012 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-433
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-10 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S5-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J3-45 |
| filingDate |
2020-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48cf48e7478cd328a7e693d9dae7c063
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e707ed894a94223260893f3c1ada0b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06ce0c524ae5f886df0c4f9f75f33b4f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4906a57eae0b5bff1844e86373bb3298
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70d5459f1c975fb2c1991e5fdf15a0ec |
| publicationDate |
2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11293861-B2 |
| titleOfInvention |
Dual-comb spectroscopy |
| abstract |
A dual-comb spectrometer 5 with two lasers 10, 12 serving as a local oscillator and an interrogator. The lasers output light beams with respective frequency combs C1, C2 of defined free spectral range, FSR. A detector 30 can detect heterodyne mixing of the combined beams to detect an RF frequency comb C3. Respective control signals are supplied to the lasers which have functional forms configured to cause the frequencies of the lasers' frequency combs C1, C2 to tune over a defined fraction of their FSR. This enables a reduction of the effective spectral sampling period by a factor equal to the ratio of the FSR to the spectral resolution of the spectrometer, which will typically be several orders of magnitude, so that the spectral sampling period can be reduced from the GHz to the MHz range, which in turn enables a gapless spectrum to be obtained in a short time. |
| priorityDate |
2019-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |