首页> 外文会议>Conference on Vertical-Cavity Surface-Emitting Lasers VIII; 20040128-20040129; San Jose,CA; US >Monolithic polarization control of multimode VCSELs by a dielectric surface grating
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Monolithic polarization control of multimode VCSELs by a dielectric surface grating

机译:介电表面光栅对多模VCSEL的单片偏振控制

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Based on design guidelines from a three-dimensional, fully vectorial model, we have fabricated vertical-cavity surface-emitting lasers (VCSELs) with a monolithically integrated dielectric surface grating for polarization control. For VCSELs with emission wavelengths of 850 and 980 nm we have achieved orthogonal polarization suppression ratios (OPSRs) above 15 dB for all modes up to thermal rollover, which very well agrees with theory. It is shown both theoretically and experimentally that the grating has no influence on the emission far-field. The surface grating has also been combined with a surface relief to stabilize the polarization and to increase the fundamental mode output power at the same time.
机译:基于三维全矢量模型的设计准则,我们制造了垂直腔面发射激光器(VCSEL),该激光器具有用于偏振控制的单片集成介电表面光栅。对于发射波长为850和980 nm的VCSEL,我们对直至热翻转的所有模式均实现了15 dB以上的正交偏振抑制比(OPSR),这与理论非常吻合。从理论上和实验上都表明,光栅对发射远场没有影响。表面光栅也已经与表面起伏相结合,以稳定偏振并同时增加基模输出功率。

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