Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optica Laser Congress (ASSL, LAC, LS&C)

Demonstration of near-infrared triple-photon-generation stimulated over one mode in a phase-matched KTP crystal

Julien Bertrand, Véronique Boutou, C. Félix, David Jegouso, Benoı̂t Boulanger

Published Jan 1, 2025• 0 citations
Publisher

Abstract

We achieved the first experimental demonstration of Triple-Photon-Generation seeded over one mode using a 1-cm KTP crystal. The linear dependence on the seeding pulse energy and the polarization behavior are in accordance with quantum theory.
DOI
10.1364/assl.2025.atu5a.2

Related papers

First theoretical and experimental demonstration of quantum correlations of triple photons

Audrey Dot, Kamel Bencheikh, Benoı̂t Boulanger +4 more

We give prominence to the first experimental and theoretical demonstration of quantum correlations of triple photons produced by a true phase-matched third order non linear process in a KTP crystal pumped at 532 nm.

Lasers, Sources, and Related Photonic Devices•Jan 1, 2010•0 citations

Experimental demonstration and modeling of near-infrared nonlinear third-order triple-photon generation stimulated over one mode

J. Bertrand, Véronique Boutou, C. Félix +2 more

Triple Photon Generation (TPG) is a third-order nonlinear optical interaction in which a photon of energy ℏωp splits into three photons at ℏω1, ℏω2, and ℏω3, with ℏωp = ℏω1 + ℏω2 + ℏω3. The triplets possess different quantum signatures from those of photon pairs, with strong interest in quantum information. In the present study, we report the first experimental demonstration of TPG stimulated over one mode of the triplet, at ℏω1, whereas previous work on TPG concerned stimulation over two modes, at ℏω2 and ℏxω3. The nonlinear medium is a KTiOPO4 crystal pumped in the picosecond regime (15 ps, 10 Hz) at λp = 532 nm. The stimulation beam is emitted by a tunable optical parametric generator: the phase-matching was found at a stimulation wavelength λ1 = 1491 nm, the other two modes of the triplet being at λ2 = λ3 = 1654 nm in orthogonal polarizations. Using superconducting nanowire single photon detectors, the measurements of the polarizations and wavelength signatures of the two generated modes are in full agreement with calculations. It has been possible to generate a total number of photons per pulse on modes 2 and 3 up to 2 × 104, which corresponds to the generation of 104 triplets per pulse, or 105 triplets per second since the repetition rate is equal to 10 Hz. We interpreted these results in the framework of a model we developed on the basis of the nonlinear momentum operator in the Heisenberg representation under the undepleted pump and stimulation approximation.

arXiv:2412.19348•APL Quantum•Apr 25, 2025•5 citations

Triple-photon generation: comparison between theory and experiment

Fabien Gravier, Benoı̂t Boulanger

We conceived an optical generator leading to the production of 3×1013 triple photons per pulse with a full-width duration of 88ps at 1/e2, by using a third-order optical parametric interaction phase-matched in a KTP crystal and pumped at 532 nm. The triple photon generation is stimulated by two photons orthogonally polarized emitted by a homemade optical parametric oscillator emitting at 1665 nm. The energy generated at 1474 nm is well modelized by an analytical model based on Jacobi elliptic functions. These results open the way to new quantum measurement relative to Greenberger-Horne-Zeilinger state of light.

Journal of the Optical Society of America B•Dec 21, 2007•28 citations

Quantum theory analysis of triple photons generated by a χ(3) process

Audrey Dot, Adrien Borne, Benoı̂t Boulanger +2 more

We present a quantum theoretical analysis of triple photons generated by a phase-matched third-order nonlinear process in a KTP crystal in a weak-interaction regime. We show that the quantum properties of the triple photons can be brought to light through optical second- and third-order sum frequency generation processes.

Physical Review A•Feb 9, 2012•35 citations

Generation of Ultra-Bright Polarization-Entangled Photon Pairs via Type II Noncritical Phase Matching

Ilhwan Kim, Yosep Kim, Yong‐Su Kim +2 more

We experimentally demonstrated generation of ultra-bright polarization-entangled photon pairs based on a spontaneous parametric down-conversion process in a bulk KTP crystal. This technique uses noncritical phase matching to generate Type II, collinear photon pairs.

Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)•Aug 4, 2024•0 citations

Triple Photons Generation : toward a new state of light

Audrey Dot, Kamel Bencheikh, Benoı̂t Boulanger +3 more

We implemented an experiment using a Nd:YAG laser and KTP crystals that allowed the generation and study of triple photons corresponding to the creation of three correlated photons from the splitting of a single photon.

Advances in Optical Sciences Congress•Jan 1, 2009•0 citations
Triple Photon Generation (TPG) is a third-order nonlinear optical interaction in which a photon of energy ℏωp splits into three photons at ℏω1, ℏω2, and ℏω3, with ℏωp = ℏω1 + ℏω2 + ℏω3. The triplets possess different quantum signatures from those of photon pairs, with strong interest in quantum information. In the present study, we report the first experimental demonstration of TPG stimulated over one mode of the triplet, at ℏω1, whereas previous work on TPG concerned stimulation over two modes, at ℏω2 and ℏxω3. The nonlinear medium is a KTiOPO4 crystal pumped in the picosecond regime (15 ps, 10 Hz) at λp = 532 nm. The stimulation beam is emitted by a tunable optical parametric generator: the phase-matching was found at a stimulation wavelength λ1 = 1491 nm, the other two modes of the triplet being at λ2 = λ3 = 1654 nm in orthogonal polarizations. Using superconducting nanowire single photon detectors, the measurements of the polarizations and wavelength signatures of the two generated modes are in full agreement with calculations. It has been possible to generate a total number of photons per pulse on modes 2 and 3 up to 2 × 104, which corresponds to the generation of 104 triplets per pulse, or 105 triplets per second since the repetition rate is equal to 10 Hz. We interpreted these results in the framework of a model we developed on the basis of the nonlinear momentum operator in the Heisenberg representation under the undepleted pump and stimulation approximation.
We conceived an optical generator leading to the production of 3×1013 triple photons per pulse with a full-width duration of 88ps at 1/e2, by using a third-order optical parametric interaction phase-matched in a KTP crystal and pumped at 532 nm. The triple photon generation is stimulated by two photons orthogonally polarized emitted by a homemade optical parametric oscillator emitting at 1665 nm. The energy generated at 1474 nm is well modelized by an analytical model based on Jacobi elliptic functions. These results open the way to new quantum measurement relative to Greenberger-Horne-Zeilinger state of light.