In a vertical cavity surface-emitting semiconductor laser device, first
and second resonance wavelengths which are different are provided while a
first resonator and a second resonator are coupled optically, and a gain
of an active layer at the first resonance wavelength on the side of short
wavelength is higher than that at the second resonance wavelength on the
side of long wavelength. An absorption coefficient of an optical
absorption layer when no electric field is applied is small for the first
and second resonance wavelengths, and when an electric field is applied,
an absorption coefficient of the optical absorption layer for the first
resonance wavelength on the side of short wavelength is larger than that
for the second resonance wavelength on the side of long wavelength.