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(a) SEM (top view) of a side square resonator laser with a wide output waveguide. (b) Near field pattern measured from the cleaved output waveguide.
(a) Laser spectra of a square resonator laser with the side length of . (b) Analytical results of mode wavelength fitted with laser spectra with the longitudinal mode index .
Mode refractive index versus photon energy obtained by fitting analytical mode wavelength to the laser spectra.
Magnetic field patterns of (a) the symmetry mode at 1528.90 nm and (b) antisymmetry mode at 1515.23 nm. Field amplitudes in the output waveguide are five-times magnified.
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