US 11,870,217 B2
Bi-directional vertical cavity surface emitting lasers
Benjamin Kesler, Sunnyvale, CA (US)
Assigned to Lumentum Operations LLC, San Jose, CA (US)
Filed by Lumentum Operations LLC, San Jose, CA (US)
Filed on Nov. 1, 2021, as Appl. No. 17/453,057.
Claims priority of provisional application 63/261,697, filed on Sep. 27, 2021.
Claims priority of provisional application 63/261,699, filed on Sep. 27, 2021.
Prior Publication US 2023/0108210 A1, Apr. 6, 2023
Int. Cl. H01S 5/00 (2006.01); H01S 5/183 (2006.01); H01S 5/34 (2006.01); H01S 5/42 (2006.01); H01S 5/30 (2006.01); H01S 5/20 (2006.01)
CPC H01S 5/18397 (2013.01) [H01S 5/18305 (2013.01); H01S 5/18313 (2013.01); H01S 5/18388 (2013.01); H01S 5/2081 (2013.01); H01S 5/3095 (2013.01); H01S 5/3416 (2013.01); H01S 5/426 (2013.01); H01S 5/183 (2013.01); H01S 5/18394 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vertical cavity surface emitting laser (VCSEL) device, comprising:
a substrate layer;
a first set of epitaxial layers for a bottom-emitting VCSEL disposed on the substrate layer, the first set of epitaxial layers comprising:
a first set of mirrors; and
at least one first active layer; and
a second set of epitaxial layers for a top-emitting VCSEL disposed on the first set of epitaxial layers for the bottom-emitting VCSEL, the second set of epitaxial layers comprising:
a second set of mirrors; and
at least one second active layer,
wherein the top-emitting VCSEL and the bottom-emitting VCSEL are configured to emit light in opposite light emission directions.