Journal of the Optical Society of America B

Efficient parametric generation of counterpropagating two-photon states

Adeline Orieux, Xavier Caillet, Aristide Lemaître, Pascal G. Filloux, Iván Favero, Giuseppe Leo, S. Ducci

Published Dec 8, 2010• 38 citations

Abstract

Guided-wave parametric downconversion with a transverse pump is a versatile means to generate a wide range of two-photon states. We propose and compare some microcavity-based schemes for the generation of counterpropagating photon pairs, and we experimentally demonstrate a bright source emitting 1.2×10−11 pairs/pump photon for a 1.8 mm long waveguide. These results are promising for integrated quantum information technology.

DOI: 10.1364/josab.28.000045

Related papers

Semiconductor integrated sources of quantum light at room temperature

Adeline Orieux, Aristide Lemaître, Pascal G. Filloux +3 more

In the last few years considerable effort has been devoted to the miniaturization of quantum information technology on semiconductor chips; in addition, recent developments in quantum information theory have roused a growing interest in 'generalized' states of frequency correlation. Parametric generation in semiconductor waveguides allows roomtemperature operation in the telecom range. We propose and compare some microcavity-based schemes for the generation of counterpropagating photon pairs and we experimentally demonstrate a bright source emitting 1.2 × 10-11pairs/pump photon for a 1.8 mm long waveguide. The indistiguishability of the photons of the pair is measured via a Hong-Ou-Mandel two-photon interference experiment showing a visibility of 85 %. The versatility of the source to control the generated two-photon state is also discussed.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEDec 4, 20100 citations

Semiconductor Waveguide Source of Counterpropagating Twin Photons

L. Lanco, S. Ducci, J.-P. Likforman +5 more

We experimentally demonstrate an integrated semiconductor source of counterpropagating twin photons in the telecom range. A pump beam impinging on top of an AlGaAs waveguide generates parametrically two counterpropagating, orthogonally polarized signal/idler guided modes. A 2 mm long waveguide emits at room temperature one average photon pair per pump pulse, with a spectral linewidth of 0.15 nm. The twin character of the emitted photons is ascertained through a time-correlation measurement. This work opens a route towards new guided-wave semiconductor quantum devices.

Physical Review LettersOct 23, 200691 citations

Two-photon interference with a semiconductor integrated source at room temperature

Xavier Caillet, Adeline Orieux, Aristide Lemaître +4 more

We experimentally demonstrate an integrated semiconductor ridge microcavity source of counterpropagating twin photons at room temperature in the telecom range. Based on type II parametric down conversion with a counterpropagating phase-matching, pump photons generate photon pairs with an efficiency of about 10(-11) and a spectral linewidth of 0.3 nm for a 1 mm long sample. The indistiguishability of the photons of the pair is measured via a Hong-Ou-Mandel two-photon interference experiment showing a visibility of 85 %. This work opens a route towards new guided-wave semiconductor quantum devices.

Optics ExpressApr 28, 201027 citations

Semiconductor ridge microcavity source of quantum light at room temperature

Xavier Caillet, Adeline Orieux, Aristide Lemaître +4 more

We experimentally demonstrate an integrated semiconductor ridge microcavity source of counterpropagating twin photons at room temperature in the telecom range. Based on parametric down conversion with a counterpropagating phase-matching, pump photons generate photon pairs with an efficiency of about 10^(-11) and a spectral linewidth of 0.3 nm for a 1mm long sample. The indistiguishability of the photons of the pair are measured via a two-photon interference experiment showing a visibility of 85%. This work opens a route towards new guided-wave semiconductor quantum devices.

arXiv:0911.0032Oct 31, 20091 citation

Tunable counterpropagating twin photon source

Albert Peralta Amores, Marcin Świłło

We present an optical configuration for the generation of degenerate counterpropagating photon pairs via spontaneous-parametric down-conversion in subwavelength thin waveguides with 4 ¯ 3 m symmetry. The generated photon pairs exhibit orthogonal polarizations and excite TE- and TM-like modes. Compensation of the momentum mismatch between the excited modes by pump tilting enables tunable degenerate emission across the S , C , and L bands (1400 to 1600 nm). Experimental verification confirms an efficiency of ≈ 10 − 5 photon pairs per pump photon with an expected linewidth of 0.3 nm in 2-mm-long Ga 0.51 In 0.49 P waveguides. Published by the American Physical Society 2024

Physical Review ADec 16, 20242 citations

AlGaAs waveguide generation of counterpropagating twin photons

L. Lanco, S. Ducci, J.-P. Likforman +3 more

We demonstrate an integrated semiconductor source of counterpropagating twin photons in the telecom range. A pump beam impinging on top of an AlGaAs waveguide generates parametrically two counterpropagating, orthogonally polarized signal/idler guided modes. A 2 mm long waveguide emits at room temperature one average photon pair per pump pulse, with a spectral linewidth of 0.15 nm. The twin nature of the emitted photons is tested through a time-correlation measurement.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEMay 4, 20070 citations