Biphoton Pulse Shaping

Abstract

AbstractRecent research has demonstrated how classical optical signal-processing techniques can be extended to nonclassical entangled-photon states, permitting unprecedented control of the time-frequency correlations shared by these light quanta. In this chapter, we introduce the basic theory behind such biphoton pulse shaping and highlight several key experiments conducted in this field. Our emphasis is not only on how entangled photons benefit from these traditionally classical techniques, but also how their specifically quantum properties produce interesting effects not observable with classical fields. We consider both Fourier-transform pulse shaping, which relies on programmable spectral filtering, and electro-optic modulation, in which the temporal phase or amplitude of the biphoton is manipulated by an electrical signal. Both avenues of research have facilitated new insights into biphoton correlations and look to play an important role in the future of quantum state manipulation and the next generation of quantum communication networks.KeywordsEntangle StatePulse ShapingSpectral PhaseEntangle PhotonSpectral FilterThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.