Laser assembly and method for manufacturing same, laser module, optical engine, and xr glasses

A laser assembly comprising:

• a plurality of laser elements;
• a plurality of laser element bases which have a main surface and a bonding surface and in which the plurality of laser elements are respectively installed on the main surfaces;
• an optical waveguiding substrate which has a main surface and a bonding surface and in which an optical waveguiding layer is provided with optical waveguides for waveguiding laser light emitted from the plurality of laser elements on the main surface;
• a plurality of spacer layers which are disposed away from each other at positions respectively corresponding to the plurality of laser element bases on the bonding surface of the optical waveguiding substrate;
• and
• a plurality of metal laminate films which bond the bonding surfaces of the plurality of laser element bases and the bonding surface of the optical waveguiding substrate,
• wherein the plurality of metal laminate films are respectively disposed on the plurality of spacer layers and have a plurality of first metal films and second metal films that are disposed on the bonding surfaces of the plurality of laser element bases and made of metals capable of being eutectic with metals constituting the first metal films.