SEMICONDUCTOR DEVICE

• Main Authors: KAWASAKI KAZUSHIGE, MATSUMOTO KEISUKE, SAKUMA HITOSHI, UETSUJI TETSUYA, MORITA DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 05.11.2015
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

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. 【課題】本発明は、部品点数の削減に適した構成を有し、かつ光増幅器の消費電力を抑制できる半導体装置を提供することを目的とする。【解決手段】１枚の基板と、該基板に設けられた複数の半導体レーザ素子と、該基板に設けられた、該複数の半導体レーザ素子の前方出力光を合波する前方光合波器と、該基板に設けられた、該前方光合波器で合波された光を増幅する光増幅器と、該基板に設けられた、該複数の半導体レーザ素子の後方出力光を受光するモニタ用受光素子と、を備えたことを特徴とする。【選択図】図１