Controlling optical pulse shape of a solid-state emitter
US11495941B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2021 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Jun 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optoelectronic device includes a laser diode having a cathode terminal and an anode terminal, which is connected to a driving voltage. A driver is coupled to drive current pulses through the laser diode from the anode terminal to the cathode terminal. A discharge switch has a first switch terminal connected to the cathode terminal and a second switch terminal connected to a discharge voltage, which is equal to or greater than the driving voltage, and is configured, when closed, to raise the cathode terminal to the discharge voltage. A switch control circuit has an input connected to the cathode terminal and an output connected to close the discharge switch in response to the current pulses occurring at the input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.