Systems and methods for compensating for dark current in a photodetecting device
US11665447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Jan 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/633
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for imaging in the short wave infrared (SWIR), photodetectors with low dark current and associated circuits for reducing dark currents and methods for generating image information based on data of a photodetector array. A SWIR imaging system may include a pulsed illumination source operative to emit radiation pulses in the SWIR band towards a target resulting in reflected radiation from the target; (b) an imaging receiver including a plurality of Ge PDs operative to detect the reflected SWIR radiation and a controller, operative to control activation of the receiver for an integration time during which the accumulated dark current noise does not exceed the time independent readout noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.