High singlemode output power from long-wavelength VCSELs using curved micro-mirrors for mode control |
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| Authors: | Kogel B. Maute M. Halbritter H. Jatta S. Bohm G. Amann M.-C. Meissner P. |
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| Affiliation: | Inst. fur Hochfrequenztechnik, Tech. Univ. Darmstadt, Germany; |
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| Abstract: | Concave curved micro-mirrors enable record high 2.8 mW singlemode emission from long-wavelength vertical-cavity surface-emitting lasers with large current apertures up to 12 /spl mu/m. Higher-order transverse modes are suppressed by more than 48 dB, while polarisation control by a dominating mirror asymmetry is demonstrated after coupling 1.9 mW into a singlemode fibre. |
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