Patent ID: 11901697
Assignee: SILANNA ASIA PTE LTD
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 14:
15. A pulsed laser diode driver, comprising:
a plurality of laser diode driver modules, each laser diode driver module comprising:
an inductor having a first terminal and a second terminal, the first terminal being configured to receive a source voltage;
a source capacitor having a first terminal directly electrically connected to the first terminal of the inductor to provide the source voltage and a second terminal electrically coupled to ground;
a bypass capacitor having a first terminal directly electrically connected to the first terminal of the inductor and a second terminal directly electrically connected to the second terminal of the inductor;
a laser diode having a cathode that is directly electrically connected to the first terminal of the inductor and an anode that is directly electrically connected to the second terminal of the inductor; and
a bypass switch having a drain node that is directly electrically connected to the second terminal of the inductor and a source node that is directly electrically connected to ground;
wherein:

a respective source capacitor of each laser diode driver module of the plurality of laser diode driver modules is configured to receive the source voltage at the first terminal of that respective source capacitor; and
the bypass switch of each laser diode driver module of the plurality of laser diode driver modules is configured to control a current flow through the inductor of that laser diode driver module to produce a high-current pulse through the laser diode of that laser diode driver module, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of that laser diode.