Semiconductor optical amplifier
专利汇可以提供Semiconductor optical amplifier专利检索，专利查询，专利分析的服务。并且PURPOSE:To reduce the polarization plane dependency of a gain greatly by forming active waveguides of a progressive wave type amplifier (TWA) on two vertical main surfaces in parallel. CONSTITUTION:The active waveguides 4 of the TWA are formed on two nearly right-angled main planes in parallel and input light which is made incident from the left in a figure is amplified by the active waveguide 4 and outputted to the right side in the figure. Namely, the polarization plane dependency of the gain of the TWA increases because a TE polarized wave and a TM polarized wave are different in light confinement coefficient, and when a rectangular waveguide is employed to make the confinement coefficient nearly equal, the difference in gain decreases, but it becomes difficult to manufacture the semiconductor optical amplifier. Here, the flat active waveguides 4 are arranged almost at right angles and then the gain differences cancel each other to reduce the polarization plane dependency. Further, when an active waveguide 4 is employed and a quantum well structure is introduced, the gain can be increased, so the performance of a linear amplifier is further increased.，下面是Semiconductor optical amplifier专利的具体信息内容。
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