# On the relationship between pump chirp and single-photon chirp in spontaneous parametric downconversion

@article{SnchezLozano2012OnTR, title={On the relationship between pump chirp and single-photon chirp in spontaneous parametric downconversion}, author={X. S{\'a}nchez-Lozano and Alfred B. U’Ren and Jos{\'e} Luis Lucio}, journal={Journal of Optics}, year={2012}, volume={14}, pages={015202} }

We study the chronocyclic character, i.e.?the joint temporal and spectral properties, of the single-photon constituents of photon pairs generated by spontaneous parametric downconversion. In particular we study how single-photon properties, including purity and single-photon chirp, depend on photon-pair properties, including the type of signal?idler spectral and correlations and the level of pump chirp.

## 6 Citations

Spontaneous parametric down-conversion in chirped, aperiodically-poled crystals

- Physics
- 2015

We present a theoretical analysis of the process of spontaneous parametric down conversion (SPDC) in a nonlinear crystal characterized by a linearly-chirped χ(2) grating along the direction of…

Probing spectral-temporal correlations with a versatile integrated source of parametric down-conversion states

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- 2014

The spectral-temporal correlation and the correlation time of a biphoton wavepacket generated in the process of parametric down-conversion (PDC), is of great importance for a broad range of quantum…

Reducing detection noise of a photon pair in a dispersive medium by controlling its spectral entanglement

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- 2016

We analyze the effect of the chromatic dispersion on the characteristics of the state of a photon pair generated in the spontaneous parametric down-conversion process and propagated through standard…

Toolbox for continuous-variable entanglement production and measurement using spontaneous parametric down-conversion

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- 2015

We provide a toolbox for continuous-variable quantum-state engineering and characterization of biphoton states produced by spontaneous parametric down-conversion in a transverse pump configuration.…

Fast time-domain measurements on telecom single photons

- Physics, Mathematics
- 2017

Direct measurements on the temporal envelope of quantum light are a challenging task and not many examples are known because most classical pulse characterisation methods do not work on the…

## References

SHOWING 1-10 OF 28 REFERENCES

Generation of Pure-State Single-Photon Wavepackets by Conditional Preparation Based on Spontaneous Parametric Downconversion

- Physics, Mathematics
- 2005

We study the conditional preparation of single photons based on parametric downconversion, where the detection of one photon from a given pair heralds the existence of a single photon in the…

Heralding single photons from pulsed parametric down-conversion

- Physics
- 2005

We describe an experiment in which photon pairs from a pulsed parametric down-conversion source were coupled into single-mode fibers. Detecting one of the photons heralded the presence of the other…

Tailoring the spectral coherence of heralded single photons.

- Physics, MedicineOptics letters
- 2009

It is shown that these same techniques can be used to tune the first-order coherence properties of the signal or idler photons (signal-signal or Idler-idler frequency correlations) and partially coherent radiation can be synthesized through adequate biphoton engineering.

Tunable narrowband entangled photon pair source for resonant single-photon single-atom interaction.

- Physics, MedicineOptics letters
- 2009

A tunable, frequency-stabilized, narrow-bandwidth source of frequency-degenerate, entangled photon pairs based on spontaneous parametric downconversion in periodically poled KTiOPO(4).

Control, measurement, and propagation of entanglement in photon pairs generated through type-II parametric down-conversion

- Physics
- 2009

We present a study of the effects of dispersion on the properties of photon pairs generated by type-II collinear spontaneous parametric down-conversion. Specifically, we take into consideration the…

Generation of Fourier-transform-limited heralded single photons

- Physics
- 2007

In this paper we study the spectral (temporal) properties of heralded single photon wave packets, triggered by the detection of an idler photon in the process of parametric down conversion. The…

Efficient conditional preparation of high-fidelity single photon states for fiber-optic quantum networks.

- Physics, MedicinePhysical review letters
- 2004

A parametric down-conversion source exhibiting a conditional detection efficiency of 51% (with corresponding preparation efficiency of 85%) and extraordinarily high detection rates of up to 8.5 x 10(5) coincidences/(s mW) is demonstrated.

Heralded generation of ultrafast single photons in pure quantum States.

- Physics, MedicinePhysical review letters
- 2008

It is shown that, through controlling the modal structure of the photon pair emission, one can generate pairs in factorable states and thence eliminate the need for spectral filters in multiple-source interference schemes.

New high-intensity source of polarization-entangled photon pairs.

- Physics, MedicinePhysical review letters
- 1995

Type-II noncollinear phase matching in parametric down conversion produces true entanglement: No part of the wave function must be discarded, in contrast to previous schemes.

Design of bright, fiber-coupled and fully factorable photon pair sources

- Physics
- 2010

From quantum computation to quantum key distribution, many quantum-enhanced applications rely on the ability to generate pure single photons. Even though the process of spontaneous parametric…