US 11,955,770 B2
Laser diode assembly and driving circuit for high power short pulse generation
Hao Huang, San Jose, CA (US); Mikhail Dolganov, Gilroy, CA (US); Huanlin Zhu, San Jose, CA (US); and Lijun Zhu, Dublin, CA (US)
Assigned to Lumentum Operations LLC, San Jose, CA (US)
Filed by Lumentum Operations LLC, San Jose, CA (US)
Filed on Mar. 31, 2021, as Appl. No. 17/301,332.
Claims priority of provisional application 63/131,184, filed on Dec. 28, 2020.
Prior Publication US 2022/0209494 A1, Jun. 30, 2022
Int. Cl. H01S 3/00 (2006.01); H01S 5/02345 (2021.01); H01S 5/026 (2006.01); H01S 5/042 (2006.01); H01S 5/068 (2006.01); H01S 5/183 (2006.01)
CPC H01S 5/0428 (2013.01) [H01S 5/02345 (2021.01); H01S 5/0261 (2013.01); H01S 5/06825 (2013.01); H01S 5/183 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A driver circuit for driving an optical load having an anode and a cathode, the driver circuit comprising:
a source;
a ground;
a first anode pad;
a first set of connecting elements to connect the first anode pad to the anode of the optical load;
a second anode pad that is separate from the first anode pad such that the second anode pad is not directly connected to the first anode pad;
a second set of connecting elements to connect the second anode pad to the anode of the optical load; and
a switch having an open state and a closed state,
wherein a first circuit path is connected from the source to the switch and includes, in order:
the first anode pad,
the first set of connecting elements,
the second set of connecting elements, and
the second anode pad,
wherein transitioning the switch from the open state to the closed state causes the first set of connecting elements and the second set of connecting elements to be charged through the first circuit path, and
wherein a second circuit path is to be connected from the source to the optical load and includes, in order:
the first anode pad, and
the first set of connecting elements,
wherein transitioning the switch from the closed state to the open state causes the first set of connecting elements to discharge through the second circuit path to provide an electrical pulse to the optical load.