Abstract: A sweeping spectrum analyzer for analyzing the frequency and amplitude of an input signal is comprised of a Bragg cell with a laser beam input and an accoustic signal input. An input signal is mixed with a sweep signal to produce a heterodyned signal within the acoustic bandwidth of the Bragg cell. The heterodyned signal is applied to the Bragg cell and results in deflection of a laser beam passing therethrough. The Bragg cell output is imaged onto a charge coupled photodetector array and fed to a shift register as clock pulses. The clock pulses are synchronized with the sweep signal frequency for transfer as one charge packet down a charge coupled array.