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Abstract
We report the operation of a new stripe geometry (GaAl)As double-heterostructure laser, grown by low-pressure metallorganic vapor deposition (MO-CVD). Several points make this MO-CVD laser very suitable for optical communication: (i) a very low beam divergence in the direction perpendicular to the junction plane, 26 °; (ii) a low pulsed threshold current, 80 mA (stripe geometry: 5×300 μm); (iii) an emission wavelength of 8300 Å (optimum for optical fiber transmission).
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