Measurement of Fourier-synthesized optical waveforms.
Following the experiments of Shverdin and colleagues [Phys. Rev. Lett. 94, 033904 (2005)], we describe a technique for determining the temporal envelope of an optical beam whose spectrum consists of n discrete, equally spaced frequency components. Four-wave mixing is employed to generate n-1 higher-frequency sidebands. The relative intensities of these sidebands, together with the intensities of the incident side-bands, determine the unknown relative phases of the incident beam.
Goda
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Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. sngoda@stanford.edu
Shverdin
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Walker
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Harris
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