The invention discloses a double-
resonance vertical-cavity surface-emitting
laser structure for generating terahertz wave and
microwave and relates to the field of optoelectronic devices. The structure comprises a lower
metal electrode, an n-type substrate, a lower distributed feedback Bragg reflector, an n-type
phase matching layer, a
gain area, a p-type
phase matching layer, an upper distributed feedback Bragg reflector, a
passivation layer and an upper
metal electrode which are sequentially arranged from bottom to top; the structure is characterized in that the length d of a
laser resonance cavity is formed by the optical thickness of the n-type
phase matching layer, the optical thickness of the
gain area, the optical thickness of the p-type phase matching layer, and energy transmission depth of
laser in the lower distributed feedback Bragg reflector and the upper distributed feedback Bragg reflector; the length d of the
resonance cavity is required to meet the equation as follows: d=c / 2
omega; if the
omega is greater than 0.1THz and smaller than 10THz, the terahertz wave is generated; if the
omega is greater than 300MHz and smaller than 300GHz, the
microwave is generated. Compared with the existing terahertz
light source, the double-resonance vertical-cavity surface-emitting laser structure for generating the terahertz wave and the
microwave has the advantages of integration,
miniaturization, working at
room temperature and easiness in formation of two-dimensional arrays.