US 11,699,893 B2
VCSELs for high current low pulse width applications
Randolph Schueller, Minneapolis, MN (US); and Sara Rothwell, Minneapolis, MN (US)
Assigned to Vixar, Inc., Plymouth, MN (US)
Filed by Vixar, Inc., Plymouth, MN (US)
Filed on Nov. 24, 2020, as Appl. No. 17/102,497.
Prior Publication US 2022/0166192 A1, May 26, 2022
Int. Cl. H01S 5/183 (2006.01); H01S 5/42 (2006.01)
CPC H01S 5/18311 (2013.01) [H01S 5/18338 (2013.01); H01S 5/18394 (2013.01); H01S 5/423 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A vertical cavity surface emitting laser (VCSEL) device, comprising:
an anode;
a cathode;
one or more curved light-emitting apertures located in an epitaxial layer between the anode and the cathode, each of the one or more curved apertures having an aperture edge;
one or more oxidation bridges crossing the curved aperture that allow current to flow inside the curved aperture; and
one or more oxidation regions separating the apertures;
wherein when a current signal is applied to the VCSEL, current flow between the anode and the cathode is distributed along the aperture edge of the one or more curved apertures.