Abstract

$1550\mathrm{nm}$ $\mathrm{Al}\mathrm{Ga}\mathrm{In}\mathrm{As}∕\mathrm{In}\mathrm{P}$ long rectangle resonator lasers with three sides surrounded by $\mathrm{Si}{\mathrm{O}}_2$ and p electrode layers are fabricated by planar technology, and room-temperature continuous-wave lasing is realized for a laser with a length of $53\mu \mathrm{m}$ and a width of $2\mu \mathrm{m}$. Multiple peaks with wavelength intervals of Fabry–Pérot mode intervals and mode Q factors of about 400 and a lasing mode with a Q factor over 8000 are observed from the lasing spectrum at threshold current. The numerical results of the FDTD simulation indicate that the lasing mode may be a whispering-gallery mode, which is a coupled mode of two high-order transverse modes of the waveguide.

© 2010 Optical Society of America

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