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Transverse mode control in long-monolithic-cavity VCSELs with temperature-profile control

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4 Author(s)
Uchida, T. ; Microsystem Res. Center, Tokyo Inst. of Technol., Kanagawa, Japan ; Miyamoto, T. ; Sakaguchi, T. ; Koyama, F.

Transverse mode control by using temperature-profile control in VCSELs with a large active area of more than 10 μm diameter is demonstrated. From spectrum measurement, higher-order mode suppression was observed as power increased for a heater introduced for temperature-profile control. The far-field pattern without heating had two peaks and it changed to a Gaussian shape with heating.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 2 )