Generation of polarization-entangled photon pairs in 1550 nm band by a fiber-optic two-photon interferometer

Yoshizawa, Akio; Tsuchida, Hidemi
September 2004
Applied Physics Letters;9/27/2004, Vol. 85 Issue 13, p2457
Academic Journal
Polarization-entangled photon pairs in a band around 1550 nm are generated by use of a fiber-optic two-photon interferometer having two periodically poled lithium niobate waveguides. Coincidence measurements are adopted for feedback control, in order to suppress phase drifts in the state of entanglement. Two-photon interference with a visibility of ∼1 (after subtraction of accidental coincidences) is observed over an hour. The visibility including accidental coincidences is ∼0.77.


Related Articles

  • Plasma devices to guide and collimate a high density of MeV electrons. Kodama, R.; Sentoku, Y.; Chen, Z. L.; Kumar, G. R.; Hatchett, S. P.; Toyama, Y.; Cowan, T. E.; Freeman, R. R; Fuchs, J.; Izawa, Y.; Key, M. H.; Kitagawa, Y.; Kondo, K.; Matsuoka, T.; Nakamura, H.; Nakatsutsumi, M.; Norreys, P. A.; Norimatsu, T.; Snavely, R. A.; Stephens, R. B. // Nature;12/23/2004, Vol. 432 Issue 7020, p1005 

    The development of ultra-intense lasers has facilitated new studies in laboratory astrophysics and high-density nuclear science, including laser fusion. Such research relies on the efficient generation of enormous numbers of high-energy charged particles. For example, laser-matter interactions...

  • Study of polarization mode dispersion in a South African optical fibre network. Conibear, A. B.; Leitch, A. W. R.; Sibaya, N. A.; Gibbon, T. B.; Viljoen, L. // South African Journal of Science;May/Jun2005, Vol. 101 Issue 5/6, preceding p276 

    Polarization mode dispersion (PMD) poses one of the main limitations to upgrading optical fibre links to higher data transmission rates. We report on PMD measurements made on the South African optical fibre network and show that most of the fibres studied are currently unsuitable for upgrading...

  • Quantum many-body simulations using Gaussian phase-space representations. Drummond, P. D.; Deuar, P.; Corney, J. // Optics & Spectroscopy;Jul2007, Vol. 103 Issue 1, p7 

    Phase-space representations are of increasing importance as a viable and successful means to study exponentially complex quantum many-body systems from first principles. This paper traces the background of these methods, starting from the early work of Wigner, Glauber and Sudarshan. We focus on...

  • Proof-of-principle experiment of reference-frame-independent quantum key distribution with phase coding. Wen-Ye Liang; Shuang Wang; Hong-Wei Li; Zhen-Qiang Yin; Wei Chen; Yao Yao; Jing-Zheng Huang; Guang-Can Guo; Zheng-Fu Han // Scientific Reports;1/10/2014, p1 

    We have demonstrated a proof-of-principle experiment of reference-frame-independent phase coding quantum key distribution (RFI-QKD) over an 80-km optical fiber. After considering the finite-key bound, we still achieve a distance of 50 km. In this scenario, the phases of the basis states are...

  • Design of far-infrared three-wave polarimeter-interferometer system for the J-TEXT tokamak. Chen, J.; Gao, L.; Zhuang, G.; Wang, Z. J.; Gentle, K. W. // Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10D502 

    A multichannel three-wave far-infrared polarimeter-interferometer will be constructed on the J-TEXT tokamak (R=1.05 m, a=0.27 m, BT≤3 T, and IP≤350 kA) for current density profile and electron density profile measurements. The system will adopt the three-wave polarimeter...

  • Carbon coating reduces darkening. Wallace, John // Laser Focus World;Dec2004, Vol. 40 Issue 12, p15 

    This article reports that optical fibers are useful in down-hole energy applications, serving either as data conduits or sensors. For example, point sensors such as fiber Bragg gratings and Fabry-Perot interferometers monitor the temperature, pressure, and flow properties of multiphase fluids,...

  • Distributed Temperature Sensing: Review of Technology and Applications. Ukil, A.; Braendle, H.; Krippner, P. // Fiber Optic Sensors & Systems;May2012, Vol. 26 Issue 5, p13 

    Distributed temperature sensors (DTS) measure temperatures by means of optical fiber. Those optoelectronic devices provide a continuous profile of the temperature distribution along the cable. Initiated in the 1980s, DTS systems have undergone significant improvements in the technology and the...

  • Fiber-optic laser Doppler velocimeter using an external-cavity semiconductor laser. Kyuma, Kazuo; Tai, Shuichi; Nunoshita, Masahiro; Nakayama, Takashi // Applied Physics Letters;1984, Vol. 45 Issue 10, p1005 

    Influence of the spectral linewidth Δν of a semiconductor laser on the performance of a fiber-optic laser Doppler velocimeter (FLDV) was investigated. By using an external-cavity laser with Δν[bar_over_tilde:_approx._equal_to]0.3 MHz, we could build a FLDV having an optical fiber...

  • Parabolic Pulse Generation Using Tapered Microstructured Optical Fibres. Vukovic, Natasha; Broderick, Neil G. R.; Poletti, Francesco // Advances in Nonlinear Optics;2008, p1 

    This paper presents a numerical study of parabolic pulse generation in tapered microstructured optical fibres (MOFs). Based on our results and the algorithms presented, one can determine the linear taper profile (starting and finishing pitch values and taper length) needed to achieve parabolic...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics