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Four-wave parametric frequency conversion under conditions of two-photon absorption of the signal and pump

Nikolai E. Kornienko, M. F. Kornienko, A. P. Naumenko +1 more

Optics and SpectroscopyMar 1, 19860 citations

Photon-pair production and frequency translation using backward-wave spontaneous parametric downconversion

Paulina S. Kuo, Dileep V. Reddy, Varun Boehm Verma +3 more

Backward-wave three-wave mixing is a difficult χ (2) interaction to observe, because it requires ultrashort poling periods to achieve phasematching. Having realized sub-micrometer periods in periodically poled KTiOPO 4 (PPKTP), we demonstrate for the first time first-order quasi-phasematched, backward-wave spontaneous parametric downconversion (BW SPDC). We pumped the PPKTP crystal at 800 nm and obtained a forward-wave signal at 1400 nm and a backward-wave idler at 1868 nm. We estimated an internal pair production rate of 4.0 × 10 4 pairs/s/mW. The backward-wave phasematching constraints lead to the unique tuning property that spectral features of the pump are transferred to the forward-wave signal photons, which makes BW SPDC an attractive source of spectrally shaped, heralded single photons. These spectrally shaped photons are useful for quantum computing and quantum interconnects. For the first time, we experimentally show this effect by observing frequency translation between a spectrally shaped pump beam and the BW SPDC signal photons. Due to their unique properties, BW-SPDC-based devices will be important building blocks for quantum information processing.Backward-wave three-wave mixing is a difficult χ (2) interaction to observe, because it requires ultrashort poling periods to achieve phasematching. Having realized sub-micrometer periods in periodically poled KTiOPO 4 (PPKTP), we demonstrate for the first time first-order quasi-phasematched, backward-wave spontaneous parametric downconversion (BW SPDC). We pumped the PPKTP crystal at 800 nm and obtained a forward-wave signal at 1400 nm and a backward-wave idler at 1868 nm. We estimated an internal pair production rate of 4.0 × 10 4 pairs/s/mW. The backward-wave phasematching constraints lead to the unique tuning property that spectral features of the pump are transferred to the forward-wave signal photons, which makes BW SPDC an attractive source of spectrally shaped, heralded single photons. These spectrally shaped photons are useful for quantum computing and quantum interconnects. For the first time, we experimentally show this effect by observing frequency translation between a spectrally shaped pump beam and the BW SPDC signal photons. Due to their unique properties, BW-SPDC-based devices will be important building blocks for quantum information processing.

Optica QuantumOct 12, 202316 citations

Demonstration of Backward-wave Parametric Down-Conversion

Chih‐Sung Chuu, Chun-Yao Yang, Jim Jr-Min Lin +3 more

Bulletin of the American Physical SocietyMar 4, 20150 citations

Observation of Backward-Wave Spontaneous Parametric Downconversion in Sub-µm PPKTP

Paulina S. Kuo, Dileep V. Reddy, Varun Boehm Verma +3 more

We observed backward-wave spontaneous parametric downconversion in sub-µm periodically poled Rb-doped KTP. Pumped at 800 nm, forward-wave signal at 1400 nm and backward-wave idler at 1868 nm were obtained.

Frontiers in OpticsJan 1, 20221 citation

Spectral phase conjugation via extended phase matching

Mankei Tsang

It is shown that the copropagating three-wave-mixing parametric process, with appropriate type-II extended phase matching and pumped with a short second-harmonic pulse, can perform spectral phase conjugation and parametric amplification, which shows a threshold behavior analogous to backward-wave oscillation. The process is also analyzed in the Heisenberg picture, which predicts a spontaneous parametric downconversion rate in agreement with the experimental result reported by Kuzucu et al. [Phys. Rev. Lett. 94, 083601 (2005)]. Applications in optical communications, signal processing, and quantum information processing can be envisaged.It is shown that the copropagating three-wave-mixing parametric process, with appropriate type-II extended phase matching and pumped with a short second-harmonic pulse, can perform spectral phase conjugation and parametric amplification, which shows a threshold behavior analogous to backward-wave oscillation. The process is also analyzed in the Heisenberg picture, which predicts a spontaneous parametric downconversion rate in agreement with the experimental result reported by Kuzucu et al. [Phys. Rev. Lett. 94, 083601 (2005)]. Applications in optical communications, signal processing, and quantum information processing can be envisaged.

arXiv:physics/0506136Journal of the Optical Society of America BApr 27, 20067 citations

Spontaneous parametric down-conversion for an arbitrary monochromatic pump beam

Ole Steuernagel, HERSCHEL A. RABITZ

Optics CommunicationsSep 1, 19987 citations

Frequency Translation Using Backward-Wave Spontaneous Parametric Downconversion

Abstract

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Frequency Translation Using Backward-Wave Spontaneous Parametric Downconversion

Abstract

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