SURFACE-EMITTING SEMICONDUCTOR LASER AND OPTICAL TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a surface-emitting semiconductor laser capable of high-speed modulation.

SOLUTION: A surface-emitting semiconductor laser 10 comprises: a light-emitting part 130 that is formed on a substrate 100 and emits laser beam in a perpendicular direction with the substrate; a light propagation part 140 that is formed on the substrate and propagates a part of the light emitted by the light-emitting part in a horizontal direction with the substrate; and a reflection part 150 that reflects the light propagated by the light propagation part on the light-emitting part. The light propagation part includes a trench 120 whose refractive index is lower than the refractive index of the light-emitting part and a slow light part 122 whose refractive index is higher than the refractive index of the trench disposed between the trench and the reflection part.

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