An analysis is made of the spectrum of a laser beam modulated by the electrooptic doppler shift for two important cases: where the applied electric field is a sawtooth function and where it is a triangular function. The spectra reduce to simple forms when the maximum frequency shift is an integral multiple of the modulation frequency.
M. Gottlieb and M. Garbuny, "Analysis of the Spectrum of a Laser Beam Modulated by a Periodic Electrooptic Doppler Shift," Appl. Opt. 7, 2238-2240 (1968)