US 12,436,393 B2
Optical waveguide detection element, video laser module, and XR glasses
Hideaki Fukuzawa, Tokyo (JP); Tomohito Mizuno, Tokyo (JP); Tetsuya Shibata, Tokyo (JP); and Tsuyoshi Komaki, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK Corporation, Tokyo (JP)
Filed on Aug. 12, 2024, as Appl. No. 18/800,293.
Application 18/800,293 is a continuation of application No. 18/373,007, filed on Sep. 26, 2023, granted, now 12,085,721.
Claims priority of application No. 2022-154977 (JP), filed on Sep. 28, 2022.
Prior Publication US 2024/0402499 A1, Dec. 5, 2024
Int. Cl. G02B 6/12 (2006.01); G02B 6/125 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); H10N 50/10 (2023.01)
CPC G02B 27/0172 (2013.01) [G02B 6/12004 (2013.01); G02B 6/12007 (2013.01); G02B 6/125 (2013.01); G02B 27/0093 (2013.01); H10N 50/10 (2023.02); G02B 2006/12104 (2013.01); G02B 2027/0178 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for manufacturing a video laser module including: a substrate provided with an optical waveguide; and a subcarrier with a laser light source mounted thereon,
the method comprising:
while supplying an electric current to the laser light source via an electrode provided in the subcarrier and oscillating a laser light source, approaching bringing the subcarrier to an input port of the optical waveguide provided in the substrate;
detecting a light intensity at an output port of the optical waveguide;
adjusting a position of the subcarrier so that the light intensity is maximized; and
metal-bonding the subcarrier and the substrate at a position of the subcarrier where the light intensity is maximized.