Mode Characteristics of Unidirectional Emission AlGaInAs/InP Square Resonator Microlasers
作者： Heng Long , Yong-Zhen Huang , Yue-De Yang , Ling-Xiu Zou , Xiao-Meng Lv
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摘要: Mode characteristics of AlGaInAs/InP square resonator microlasers laterally confined by a bisbenzocyclobutene layer, with an output waveguide connected to one vertex or the midpoint side, are investigated numerically and experimentally. Numerical simulation results indicate that has better single-mode property, but lower mode \({Q}\) -factor than waveguide. For 20- \(\mu \) m-side-length microlaser 1.5- m-wide waveguide, lasing spectra multiple transverse modes observed wavelength intervals agreeing 2-D-finite difference time domain results. In contrast, operation side-mode suppression ratio 42 dB is obtained for The can result in selection addition realizing unidirectional emission.
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