Bandwidth manipulation of quantum light by an electro-optic time lens
By M. Karpiński, M. Jachura, Laura J. Wright, Brian J. Smith. Nature Photonics, 2016
168 citations recorded by the source corpus.
By employing electro-optic phase modulation, a time-lens imaging system is demonstrated for single-photon pulses. Such a system achieves wavelength-preserving sixfold bandwidth compression of single-photon states in the near-infrared spectral region. The ability to manipulate the spectral-temporal waveform of optical pulses has enabled a wide range of applications from ultrafast spectroscopy1 to high-speed communications2. Extending these concepts to quantum light has the potential to enable breakthroughs in optical quantum science and technology3,4,5. However, filtering and amplifying often employed in classical pulse shaping techniques are incompatible with non-classical light. Controlling the pulsed mode structure of quantum light requires efficient means to achieve deterministic, unitary manipulation that preserves fragile quantum coherences. Here, we demonstrate an electro-optic method for modifying the spectrum of non-classical light by employing a time lens6,7,8. In particular, we show highly efficient, wavelength-preserving, sixfold compression of single-photon spectral intensity bandwidth, enabling over a twofold increase of single-photon flux into a spectrally narrowband absorber. These results pave the way towards spectral-temporal photonic quantum information processing and facilitate interfacing of different physical platforms9,10,11 where quantum information can be stored12 or manipulated13.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/b2a01940a8aea97d436984771af2ba76080da17e
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Citations in the corpus
- Measurements in two bases are sufficient for certifying high-dimensional entanglement (2017, methodology): “This can be achieved by exploiting spatial degrees of freedom [12, 13], orbital angular momentum (OAM) [14–16], energy-time based encodings [17–20], or combinations thereof in hyper-entangled quantum systems [21, 22].”