US 12,292,602 B2
Light source device
Tadaaki Miyata, Yokohama (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Aug. 1, 2022, as Appl. No. 17/878,597.
Claims priority of application No. 2021-126644 (JP), filed on Aug. 2, 2021; and application No. 2022-011845 (JP), filed on Jan. 28, 2022.
Prior Publication US 2023/0035957 A1, Feb. 2, 2023
Int. Cl. G02B 6/42 (2006.01); H01S 5/02253 (2021.01); H01S 5/024 (2006.01); H01S 5/42 (2006.01); H01S 5/323 (2006.01)
CPC G02B 6/42 (2013.01) [G02B 6/4201 (2013.01); G02B 6/4214 (2013.01); H01S 5/02253 (2021.01); H01S 5/02469 (2013.01); H01S 5/423 (2013.01); H01S 5/32325 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light source device comprising:
a substrate having a support face;
a plurality of light emitting elements disposed on the support face, the plurality of light emitting elements including a first light emitting element and a second light emitting element, each of which is a vertical-cavity surface-emitting laser element;
a lateral wall part bonded to the support face, the lateral wall part surrounding the plurality of light emitting elements;
a lid member supported by the lateral wall part; and
a planar lightwave circuit having a light incident face that faces the support face and comprising a plurality of optical waveguides configured to guide light that has exited from the respective plurality of light emitting elements and entered the light incident face; wherein:
the planar lightwave circuit is directly or indirectly supported by the plurality of light emitting elements;
the substrate comprises a first wiring layer electrically connected to the first light emitting element and the second light emitting element; and
the plurality of light emitting elements and the planar lightwave circuit are hermetically sealed in a space formed by the substrate, the lateral wall part and the lid member.