Light emitting device including base and base cap

A light emitting device comprising:

• a base comprising a first wiring, a second wiring, and a third wiring;
• a first semiconductor laser element electrically connected to the first wiring and the second wiring, at an upper surface side of the base;
• a second semiconductor laser element electrically connected to the second wiring and the third wiring, at the upper surface side of the base;
• and
• a base cap fixed to the base such that the first semiconductor laser element and the second semiconductor laser element are enclosed in a space defined by the base and the base cap, wherein the base cap comprises a support, a light-transmissive part held by a lower surface of the support, and an adhesive member bonding the support and the light-transmissive part;
• wherein:
• the first semiconductor laser element and the second semiconductor laser element are connected in series;
• a portion of the first wiring, a portion of the second wiring, and a portion of the third wiring are exposed at the upper surface of the base at locations outside of the space defined by the base and the base cap;
• the base comprises a frame surrounding the first semiconductor laser element and the second semiconductor laser element in a top view;
• the support of the base cap is connected to the frame of the base;
• and
• the first wiring comprises a first part that is located at an upper surface of the base at a location inward of the frame, and a second part that is exposed at a location outward of the frame in the top view.