0° phase mode operation in phased‐array laser diode with symmetrically branching waveguide
0° phase mode operation in phased‐array laser diode with symmetrically branching waveguide
复制标题
对称分支波导相控阵激光二极管的 0° 相模式操作
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
T. Hijikata
中科院分区：
文献类型：
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作者：
M. Taneya;M. Matsumoto;S. Matsui;S. Yano;T. Hijikata
描述了一种具有类似字母“Y”的新型折射率波导结构的AlGaAs相控阵激光器。在所有具有这种结构的阵列中，在2%-96%的涂层器件中，仅0°相移模式的可控选择和180°相移模式的完全抑制达到了1.65 mW。阵列的远场方向图、近场方向图和频谱与理论结果吻合较好。连续波阈值电流为100 mA，外部微分量子效率为57%。
An AlGaAs phased‐array laser with a novel index waveguide structure like the letter ‘‘Y’’ is described. In all arrays with such a structure, controllable selection of only 0° phase mode and complete suppression of 180° phase shift mode is achieved up to ∼65 mW in 2%–96% coated devices. The far‐field patterns, near‐field patterns, and spectra of the array are in good agreement with the theoretical results. The cw threshold currents are ∼100 mA, and the external differential quantum efficiencies are 57% per facet.