PROBLEM TO BE SOLVED: To provide a manufacturing method of a surface emitting laser diode and a multiple-wavelength surface emitting laser diode which improves wavelength reproducibility, and is excellent in mass productivity, and to provide the surface emitting laser diode, the multiple-wavelength surface emitting laser diode and an optical communication system.;SOLUTION: An n electrode 11 is formed on a lower face of a GaAs substrate 12, and lower DBR13A, 13B and light emitting layers 14A, 14B are formed in order on an upper face to fabricate a substructure 17. The substructure 17 is joined to superstructures 18A, 18B, by which the multiple-wavelength surface emitting laser diode 1 is constituted, wherein the superstructures are formed by spacers 15A, 15B which are different in thickness according to luminescent wavelengths in the light emitting layers 14A, 14B, and upper DBR16A, 16B. Two different luminescent wavelengths are obtained by making different the thicknesses of the spacers 15A, 15B.;COPYRIGHT: (C)2006,JPO&NCIPI
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