Room-temperature continuous-wave operation of a folded-cavity surface-emitting AlGaAs/GaAs laser with transverse junction stripe structure, which has a dry-etched 45° internal mirror, is demonstrated for the first time. A threshold current of 42 mA and a differential external quantum efficiency of 19% per facet were obtained. A single far-field lobe and single longitudinal mode emission were also observed.
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Takamori et al. (1990) studied this question.
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