| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor device that has a configuration suitable for reduction in the number of components and is capable of suppressing power consumption of an optical amplifier.SOLUTION: The semiconductor device includes: a substrate, a plurality of semiconductor laser elements mounted on the substrate; a forward optical multiplexer which is mounted on the substrate and multiplexes forward output light of the plurality of semiconductor laser elements; an optical amplifier which is mounted on the substrate and amplifies light multiplexed with the forward optical multiplexer; and a light receiving element for monitor which is mounted on the substrate and receives backward output light of the plurality of semiconductor laser elements. |
