The Experts below are selected from a list of 64983 Experts worldwide ranked by ideXlab platform
Jiangde Peng - One of the best experts on this subject based on the ideXlab platform.
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long distance temporal quantum ghost imaging over Optical Fibers
Scientific Reports, 2016Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large-scale geographical applications. In this paper, we propose and demonstrate a scheme for long-distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long-distance QGI over 50 km Optical Fibers has been demonstrated.
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long distance temporal quantum ghost imaging over Optical Fibers
arXiv: Quantum Physics, 2015Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large geographical applications. In this paper, we propose and demonstrate a scheme for long distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long distance QGI over 50 km Optical Fibers has been demonstrated.
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energy time entanglement generation in Optical Fibers under cw pumping
Optics Express, 2014Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Weijun Zhang, Lixing You, Jiangde PengAbstract:In this paper, the energy-time entangled photon-pairs at 1.5 μm are generated by the spontaneous four wave mixing (SFWM) in Optical Fibers under continuous wave (CW) pumping. The energy-time entanglement property is demonstrated experimentally through an experiment of Franson-type interference. Although the generation rates of the noise photons are one order of magnitude higher than that of the photon-pairs under CW pumping, the impact of noise photons can be highly suppressed in the measurement by a narrow time domain filter supported by superconducting nanowire single photon detectors with low timing jitters and time correlated single photon counting (TCSPC) module with high time resolution. The experiment results show that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate energy-time entanglement at 1.5 μm, which has great potential for long-distance quantum information applications over Optical Fibers.
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energy time entanglement generation in Optical Fibers under continuous wave pumping
Asia Communications and Photonics Conference 2013 Postdeadline (2013) paper AF2C.2, 2013Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Lixing You, Zhang Weijun, Jiangde PengAbstract:Energy-time entangled photon-pairs at telecom band are generated via spon- taneous four wave mixing (SFWM) process in Optical Fibers under continuous wave (CW) pumping. A time domain filter is used to suppress the impact of noise photons and improve the noise property. The characterization of energy-time entanglement is presented through an experiment of Franson-type interference and a violation of CHSH-Bell inequality. It shows that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate high-quality energy-time entangled photon-pairs at telecom band.
Yidong Huang - One of the best experts on this subject based on the ideXlab platform.
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long distance thermal temporal ghost imaging over Optical Fibers
Optics Letters, 2018Co-Authors: Xin Yao, Wei Zhang, Lixing You, Zhen Wang, Yidong HuangAbstract:A thermal ghost imaging scheme between two distant parties is proposed and experimentally demonstrated over long-distance Optical Fibers. In the scheme, the weak thermal light is split into two paths. Photons in one path are spatially diffused according to their frequencies by a spatial dispersion component, then illuminate the object and record its spatial transmission information. Photons in the other path are temporally diffused by a temporal dispersion component. By the coincidence measurement between photons of two paths, the object can be imaged in a way of ghost imaging, based on the frequency correlation between photons in the two paths. In the experiment, the weak thermal light source is prepared by the spontaneous four-wave mixing in a silicon waveguide. The temporal dispersion is introduced by single-mode Fibers of 50 km, which also could be looked at as a fiber link. Experimental results show that this scheme can be realized over long-distance Optical Fibers.
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long distance temporal quantum ghost imaging over Optical Fibers
Scientific Reports, 2016Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large-scale geographical applications. In this paper, we propose and demonstrate a scheme for long-distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long-distance QGI over 50 km Optical Fibers has been demonstrated.
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long distance temporal quantum ghost imaging over Optical Fibers
arXiv: Quantum Physics, 2015Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large geographical applications. In this paper, we propose and demonstrate a scheme for long distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long distance QGI over 50 km Optical Fibers has been demonstrated.
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energy time entanglement generation in Optical Fibers under cw pumping
Optics Express, 2014Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Weijun Zhang, Lixing You, Jiangde PengAbstract:In this paper, the energy-time entangled photon-pairs at 1.5 μm are generated by the spontaneous four wave mixing (SFWM) in Optical Fibers under continuous wave (CW) pumping. The energy-time entanglement property is demonstrated experimentally through an experiment of Franson-type interference. Although the generation rates of the noise photons are one order of magnitude higher than that of the photon-pairs under CW pumping, the impact of noise photons can be highly suppressed in the measurement by a narrow time domain filter supported by superconducting nanowire single photon detectors with low timing jitters and time correlated single photon counting (TCSPC) module with high time resolution. The experiment results show that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate energy-time entanglement at 1.5 μm, which has great potential for long-distance quantum information applications over Optical Fibers.
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energy time entanglement generation in Optical Fibers under continuous wave pumping
Asia Communications and Photonics Conference 2013 Postdeadline (2013) paper AF2C.2, 2013Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Lixing You, Zhang Weijun, Jiangde PengAbstract:Energy-time entangled photon-pairs at telecom band are generated via spon- taneous four wave mixing (SFWM) process in Optical Fibers under continuous wave (CW) pumping. A time domain filter is used to suppress the impact of noise photons and improve the noise property. The characterization of energy-time entanglement is presented through an experiment of Franson-type interference and a violation of CHSH-Bell inequality. It shows that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate high-quality energy-time entangled photon-pairs at telecom band.
John Ballato - One of the best experts on this subject based on the ideXlab platform.
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additivity of the coefficient of thermal expansion in silicate Optical Fibers
Optics Letters, 2017Co-Authors: Maxime Cavillon, Peter D Dragic, John BallatoAbstract:A model that predicts the material additivity of the thermal expansion coefficient in the binary silicate glasses most commonly used for present (GeO2-SiO2, P2O5-SiO2, B2O3-SiO2, and Al2O3-SiO2) and emerging (BaO-SiO2) Optical Fibers is proposed. This model is based on a derivation of the expression for the coefficient of thermal expansion in isotropic solids, and gives direct insight on the parameters that govern its additivity in silicate glasses. Furthermore, a consideration of the local structural environment of the glass system is necessary to fully describe its additivity behavior in the investigated systems. This Letter is important for better characterizing and understanding of the impact of temperature and internal stresses on the behavior of Optical Fibers.
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Glass and Process Development for the Next Generation of Optical Fibers: A Review
Fibers, 2017Co-Authors: John Ballato, Laeticia Petit, Jiangbo Zhao, Heike Ebendorff-heidepriem, Johann TrolesAbstract:Applications involving Optical Fibers have grown considerably in recent years with intense levels of research having been focused on the development of not only new generations of Optical fiber materials and designs, but also on new processes for their preparation. In this paper, we review the latest developments in advanced materials for Optical Fibers ranging from silica, to semi-conductors, to particle-containing glasses, to chalcogenides and also in process-related innovations.
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silica clad crystalline germanium core Optical Fibers
Optics Letters, 2011Co-Authors: John Ballato, Thomas Hawkins, Stephanie Morris, Bahram Jalali, R. RiceAbstract:Silica-clad Optical Fibers comprising a core of crystalline germanium were drawn using a molten core technique. With respect to previous Fibers drawn using a borosilicate cladding, the present Fibers exhibit negligible oxygen despite being fabricated at more than twice the melting point of the germanium. The counterintuitive result of less oxygen when the fiber is drawn at a higher temperatures is discussed. The measured propagation loss for the fiber was 0.7 dB/cm at 3.39 μm, which is the lowest loss reported to date.
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On crystallographic orientation in crystal core Optical Fibers
Optical Materials, 2010Co-Authors: Colin D. Mcmillen, Paul Foy, R. Stolen, Thomas Hawkins, R. Rice, D. Mulwee, Joseph W. Kolis, John BallatoAbstract:Abstract Recently developed glass-clad semiconductor core Optical Fibers offer potential advantages over present Optical fiber materials, including greatly enhanced Raman cross-sections and extended infrared transparency. While Fibers have been fabricated that exhibit a high degree of crystallinity there has not been any in-depth analysis of the nature of the crystallographic orientation of the core material relative to the fiber axes. This crystallographic analysis is of important scientific and technological value since Optical fiber fabrication is a highly non-equilibrium process; consequently, achieving high degrees of crystallinity is counter-intuitive. In this work, the crystallographic orientation of germanium core Optical Fibers was analyzed using single crystal X-ray diffraction and electron backscatter diffraction techniques. Over nearly a 100 mm length of fiber the Ge cores were found to be polycrystalline with the 〈1 0 0〉 and 〈1 1 0〉 orientations dominant implying a dendritic growth mechanism. Single crystal regions were observed routinely in lengths greater than 8 mm with the longest being about 15 mm.
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On the fabrication of all-glass Optical Fibers from crystals
Journal of Applied Physics, 2009Co-Authors: John Ballato, B. Kokuoz, M. Daw, Colin Mcmillen, Paul Foy, T Hawkins, Terry M. Tritt, R. Stolen, Z. Su, Mark DubinskiiAbstract:The highly nonequilibrium conditions under which Optical Fibers conventionally are drawn afford considerable, yet underappreciated, opportunities to realize Fibers comprised of novel materials or materials that themselves cannot be directly fabricated into fiber form using commercial scalable methods. Presented here is an in-depth analysis of the physical, compositional, and selected Optical properties of silica-clad erbium-doped yttrium aluminosilicate glass Optical Fibers derived from undoped, 0.25, and 50 wt % Er3+-doped yttrium aluminum garnet YAG crystals. The YAG-derived Fibers were found to be noncrystalline as evidenced by x-ray diffraction and corroborated by spectroscopic measurements. Elemental analysis across the core/clad interface strongly suggests that diffusion plays a large role in this amorphization. Despite the noncrystalline nature of the Fibers, they do exhibit acceptable low losses 0.15–0.2 dB/m for many applications, broad-band emissions in the near-infrared, and enhanced thermal conductivity along their length while maintaining equivalent mechanical strength with respect to conventional silica Optical Fibers. Further, considerably higher rare-earth doping levels are realized than can be achieved by conventional solution or vapor-phase doping schemes. A discussion of opportunities for such approaches to nontraditional fiber materials is presented.
Wei Zhang - One of the best experts on this subject based on the ideXlab platform.
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long distance thermal temporal ghost imaging over Optical Fibers
Optics Letters, 2018Co-Authors: Xin Yao, Wei Zhang, Lixing You, Zhen Wang, Yidong HuangAbstract:A thermal ghost imaging scheme between two distant parties is proposed and experimentally demonstrated over long-distance Optical Fibers. In the scheme, the weak thermal light is split into two paths. Photons in one path are spatially diffused according to their frequencies by a spatial dispersion component, then illuminate the object and record its spatial transmission information. Photons in the other path are temporally diffused by a temporal dispersion component. By the coincidence measurement between photons of two paths, the object can be imaged in a way of ghost imaging, based on the frequency correlation between photons in the two paths. In the experiment, the weak thermal light source is prepared by the spontaneous four-wave mixing in a silicon waveguide. The temporal dispersion is introduced by single-mode Fibers of 50 km, which also could be looked at as a fiber link. Experimental results show that this scheme can be realized over long-distance Optical Fibers.
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long distance temporal quantum ghost imaging over Optical Fibers
Scientific Reports, 2016Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large-scale geographical applications. In this paper, we propose and demonstrate a scheme for long-distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long-distance QGI over 50 km Optical Fibers has been demonstrated.
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long distance temporal quantum ghost imaging over Optical Fibers
arXiv: Quantum Physics, 2015Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large geographical applications. In this paper, we propose and demonstrate a scheme for long distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long distance QGI over 50 km Optical Fibers has been demonstrated.
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energy time entanglement generation in Optical Fibers under cw pumping
Optics Express, 2014Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Weijun Zhang, Lixing You, Jiangde PengAbstract:In this paper, the energy-time entangled photon-pairs at 1.5 μm are generated by the spontaneous four wave mixing (SFWM) in Optical Fibers under continuous wave (CW) pumping. The energy-time entanglement property is demonstrated experimentally through an experiment of Franson-type interference. Although the generation rates of the noise photons are one order of magnitude higher than that of the photon-pairs under CW pumping, the impact of noise photons can be highly suppressed in the measurement by a narrow time domain filter supported by superconducting nanowire single photon detectors with low timing jitters and time correlated single photon counting (TCSPC) module with high time resolution. The experiment results show that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate energy-time entanglement at 1.5 μm, which has great potential for long-distance quantum information applications over Optical Fibers.
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energy time entanglement generation in Optical Fibers under continuous wave pumping
Asia Communications and Photonics Conference 2013 Postdeadline (2013) paper AF2C.2, 2013Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Lixing You, Zhang Weijun, Jiangde PengAbstract:Energy-time entangled photon-pairs at telecom band are generated via spon- taneous four wave mixing (SFWM) process in Optical Fibers under continuous wave (CW) pumping. A time domain filter is used to suppress the impact of noise photons and improve the noise property. The characterization of energy-time entanglement is presented through an experiment of Franson-type interference and a violation of CHSH-Bell inequality. It shows that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate high-quality energy-time entangled photon-pairs at telecom band.
Shuai Dong - One of the best experts on this subject based on the ideXlab platform.
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long distance temporal quantum ghost imaging over Optical Fibers
Scientific Reports, 2016Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large-scale geographical applications. In this paper, we propose and demonstrate a scheme for long-distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long-distance QGI over 50 km Optical Fibers has been demonstrated.
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long distance temporal quantum ghost imaging over Optical Fibers
arXiv: Quantum Physics, 2015Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Jiangde PengAbstract:Since the first quantum ghost imaging (QGI) experiment in 1995, many QGI schemes have been put forward. However, the position-position or momentum-momentum correlation required in these QGI schemes cannot be distributed over Optical Fibers, which limits their large geographical applications. In this paper, we propose and demonstrate a scheme for long distance QGI utilizing frequency correlated photon pairs. In this scheme, the frequency correlation is transformed to the correlation between the illuminating position of one photon and the arrival time of the other photon, by which QGI can be realized in the time domain. Since frequency correlation can be preserved when the photon pairs are distributed over Optical Fibers, this scheme provides a way to realize long-distance QGI over large geographical scale. In the experiment, long distance QGI over 50 km Optical Fibers has been demonstrated.
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energy time entanglement generation in Optical Fibers under cw pumping
Optics Express, 2014Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Weijun Zhang, Lixing You, Jiangde PengAbstract:In this paper, the energy-time entangled photon-pairs at 1.5 μm are generated by the spontaneous four wave mixing (SFWM) in Optical Fibers under continuous wave (CW) pumping. The energy-time entanglement property is demonstrated experimentally through an experiment of Franson-type interference. Although the generation rates of the noise photons are one order of magnitude higher than that of the photon-pairs under CW pumping, the impact of noise photons can be highly suppressed in the measurement by a narrow time domain filter supported by superconducting nanowire single photon detectors with low timing jitters and time correlated single photon counting (TCSPC) module with high time resolution. The experiment results show that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate energy-time entanglement at 1.5 μm, which has great potential for long-distance quantum information applications over Optical Fibers.
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energy time entanglement generation in Optical Fibers under continuous wave pumping
Asia Communications and Photonics Conference 2013 Postdeadline (2013) paper AF2C.2, 2013Co-Authors: Shuai Dong, Wei Zhang, Yidong Huang, Qiang Zhou, Lixing You, Zhang Weijun, Jiangde PengAbstract:Energy-time entangled photon-pairs at telecom band are generated via spon- taneous four wave mixing (SFWM) process in Optical Fibers under continuous wave (CW) pumping. A time domain filter is used to suppress the impact of noise photons and improve the noise property. The characterization of energy-time entanglement is presented through an experiment of Franson-type interference and a violation of CHSH-Bell inequality. It shows that the SFWM in Optical Fibers under CW pumping provides a simple and practical way to generate high-quality energy-time entangled photon-pairs at telecom band.
