Multicomb light source and spectrometer
US10697830B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2017 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Aug 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A comb light source and spectrometer is disclosed. The comb light source and spectrometer can include a plurality of light emitters, where each light emitter can be configured to emit light included in a plurality of wavelength bands. Each wavelength band can be separated from an adjacent wavelength band by a noise band. Due to the separated wavelength bands for a light emitter, any signal received outside of the one or more wavelength bands can originate from noise (e.g., drift, ambient light, electrical noise), thereby enhancing signal analysis and noise rejection. In some examples, the comb light emitters can be activated sequentially such that a plurality of wavelengths across a spectrum can be measured. In some examples, the resolution and the number of spectral lines in the comb light source can be tuned by changing the properties of the quantum dots and/or increasing the number of comb light emitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.