US 11,789,347 B2
Laser projection arrangement and method for arranging thereof
Jörg Erich Sorg, Regensburg (DE); and Nicole Berner, Walderbach (DE)
Assigned to OSRAM OPTO SEMICONDUCTORS GMBH, Regensburg (DE)
Filed by OSRAM Opto Semiconductors GmbH, Regensburg (DE)
Filed on Dec. 22, 2020, as Appl. No. 17/129,979.
Prior Publication US 2022/0197123 A1, Jun. 23, 2022
Int. Cl. G03B 21/20 (2006.01); H01S 5/40 (2006.01); H01S 5/0237 (2021.01); H01S 5/0233 (2021.01); H01S 5/22 (2006.01); F21V 8/00 (2006.01)
CPC G03B 21/2033 (2013.01) [G02B 6/002 (2013.01); H01S 5/0233 (2021.01); H01S 5/0237 (2021.01); H01S 5/22 (2013.01); H01S 5/4031 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A laser projection arrangement, comprising:
a sub-mount carrier with a main surface;
at least one edge-emitting laser arranged on the main surface, whereas the at least one edge-emitting laser is facing the sub-mount carrier and comprises at least one laser facet that is positioned at a predefined distance from the main surface; and
a planar light circuit with at least one light guide having an inlet, wherein the planar light circuit is arranged on the main surface such that the at least one light guide and the inlet is facing the at least one laser facet and is positioned at the predefined distance from the main surface of the sub-mount; and
wherein the at least one edge-emitting laser comprises a ridged resonator, wherein the ridged resonator is surrounded along the sides with a passivation layer and covered with a metallisation, the metallisation facing the sub-mount carrier.