English
Related papers

Related papers: High performance guided-wave asynchronous heralded…

200 papers

We report measurements of time-frequency entangled photon pairs and heralded single photons at telecommunications wavelengths, generated using a periodically-poled, lithium niobate on insulator (LNOI) waveguide pumped optically by a diode…

Quantum Physics · Physics 2020-05-20 Jie Zhao , Chaoxuan Ma , Michael Rüsing , Shayan Mookherjea

High-quality quantum sources are of paramount importance for the implementation of quantum technologies. We present here a heralded single-photon source based on commercial-grade polarization-maintaining optical fiber. The heralded photons…

Quantum Physics · Physics 2012-02-15 Christoph Söller , Offir Cohen , Brian J. Smith , Ian A. Walmsley , Christine Silberhorn

The practical prospect of quantum communication and information processing relies on sophisticated single photon pairs which feature controllable waveform, narrow spectrum, excellent purity, fiber compatibility and miniaturized design. For…

We present an efficient and robust source of photons at the $^{87}$Rb D1-line (795 nm) with a narrow bandwidth of $\delta=226(1)$ MHz. The source is based on non-degenerate, cavity-enhanced spontaneous parametric down-conversion in a…

A 1.5 um synchronous heralded single photon source (HSPS) is experimentally demonstrated based on dispersion shifted fiber and commercial fiber components in the paper. Experimental results show that both the preparation efficiency and the…

Optics · Physics 2010-12-14 Qiang Zhou , Wei Zhang , Jie-rong Cheng , Yi-dong Huang , Jiang-de Peng

Photonic quantum technologies require efficient sources of pure single photons. We present a heralded single-photon source based on spontaneous parametric down-conversion in a monolithic cavity optimized for high spectral and spatial…

Quantum Physics · Physics 2026-05-11 Xavier Barcons Planas , Helen M. Chrzanowski , Janik Wolters

We report on multi-photon statistics of correlated twin beams produced in a periodic poled micro-ring resonator on thin-film lithium niobate. Owing to high cavity confinement and near perfect quasi-phase matching, the photons pairs are…

Quantum Physics · Physics 2023-09-28 Zhaohui Ma , Jia-Yang Chen , Malvika Garikapati , Zhan Li , Chao Tang , Yong Meng Sua , Yu-Ping Huang

We report on the generation of an indistinguishable heralded single-photon state, using highly nondegenerate spontaneous parametric downconversion (SPDC). Spectrally factorable photon pairs can be generated by incorporating a broadband pump…

Quantum Physics · Physics 2016-05-11 Fumihiro Kaneda , Karina Garay-Palmett , Alfred B. U'Ren , Paul G. Kwiat

Efficient on-chip entangled photon pair generation at telecom wavelengths is an integral aspect of emerging quantum optical technologies, particularly for quantum communication and computing. However, moving to shorter wavelengths enables…

We demonstrate a monolithically integrable heralded photon source in a femtosecond laser direct written glass waveguide. The generation of photon pairs with a wide wavelength separation requires a concomitant large birefringence in the…

Quantum Physics · Physics 2016-02-23 Zhizhong Yan , Yuwen Duan , L. G. Helt , Martin Ams , Michael J. Withford , M. J. Steel

We report on the realization of a synchronous source of heralded single photons at telecom wavelengths with MHz heralding rates and high heralding efficiency. This source is based on the generation of photon pairs at 810 and 1550 nm via…

Quantum Physics · Physics 2015-06-05 Enrico Pomarico , Bruno Sanguinetti , Thiago Guerreiro , Rob Thew , Hugo Zbinden

We investigate single photon generation from individual self-assembled InGaAs quantum dots coupled to the guided optical mode of a GaAs photonic crystal waveguide. By performing confocal microscopy measurements on single dots positioned…

Mesoscale and Nanoscale Physics · Physics 2012-05-08 A. Laucht , S. Pütz , T. Günthner , N. Hauke , R. Saive , S. Frédérick , M. Bichler , M. -C. Amann , A. W. Holleitner , M. Kaniber , J. J. Finley

Mid infrared integrated quantum photonics is a promising platform for applications in sensing and metrology. However, there are only few examples of on-chip single photon sources at these wavelengths. These have limited performances with…

Quantum Physics · Physics 2021-12-10 S. Signorini , M. Sanna , S. Piccione , M. Ghulinyan , P. Tidemand-Lichtenberg , C. Pedersen , L. Pavesi

Low noise single-photon sources are a critical element for quantum technologies. We present a heralded single-photon source with an extremely low level of residual background photons, by implementing low-jitter detectors and electronics and…

Based on the signal and idler photon pairs produced in a piece of high nonlinear fiber by a pulsed pump, we characterize the heralded single photon source from both the theoretical and experimental aspects. In the theory model, started from…

Quantum Physics · Physics 2011-02-23 Lei Yang , Xiaoxin Ma , Xueshi Guo , Liang Cui , Xiaoying Li

Single-photon sources are necessary components for many prospective quantum technologies. One candidate for a single-photon source is spontaneous parametric down conversion combined with a heralding photon detection. The heralded light…

Quantum Physics · Physics 2024-09-04 Emil R. Hellebek , Klaus Mølmer , Anders S. Sørensen

Coincidence-count discrimination have turned utterly practical in the characterization of photon-pair processes and heralded single photons. Here, we implement a heralded single photon source based on parametric down-conversion (PDC) in a…

Quantum Physics · Physics 2025-12-22 Daniel Borrero Landazabal , Kaisa Laiho

Heralded single-photon sources are a fundamental building block for optical quantum technologies. These sources need to be unfiltered and integrated to have good scalability and avoid unnecessary losses. To attain this goal, it is necessary…

Photon-pair sources based on thin film lithium niobate on insulator technology have a great potential for integrated optical quantum information processing. We report on such a source of correlated twin-photon pairs generated by spontaneous…

Photons have proven to be excellent carriers of quantum information, and play essential roles in numerous quantum information processing (QIP) applications. In particular, heralded single- photon sources via spontaneous parametric-down…