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Position adjusting method of the semiconductor optical amplifier and a semiconductor laser device assembly and semiconductor optical amplifier
Position adjusting method of the semiconductor optical amplifier and a semiconductor laser device assembly and semiconductor optical amplifier
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机译:半导体光放大器的位置调整方法以及半导体激光装置组件和半导体光放大器
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摘要
PROBLEM TO BE SOLVED: To provide a semiconductor optical amplifier comprising a GaN-based compound semiconductor and capable of achieving still higher optical output.SOLUTION: A semiconductor optical amplifier 200 is provided with: (a) a layered structure created by sequentially stacking a first compound semiconductor layer comprising a GaN-based compound semiconductor, a third compound semiconductor layer, and a second compound semiconductor layer; (b) a second electrode 262 formed on the second compound semiconductor layer; (c) a first electrode electrically connected to the first compound semiconductor layer. The layered structure has a ridge stripe structure in which, when Wrepresents the width of the ridge stripe structure in a light emission end face 203 and Wrepresents the width of the ridge stripe structure in a light incident end face 201, WWis satisfied. In a region inward of the layered structure from the light emission end face 201 along an axial line AXof the semiconductor optical amplifier is provided with a carrier non-injection region 205. The second electrode 262 is configured from a first portion 262A and a second portion 262B separated by a separation groove 262C. The carrier non-injection region 205 is provided with the second portion 262B of the second electrode.
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