Search Results - "Kristensen, Poul"

Optical vortices in fiber by Ramachandran Siddharth, Kristensen Poul

“…Optical vortex beams, possessing spatial polarization or phase singularities, have intriguing properties such as the ability to yield super-resolved spots…”
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Terabit-Scale Orbital Angular Momentum Mode Division Multiplexing in Fibers by Bozinovic, Nenad, Yue, Yang, Ren, Yongxiong, Tur, Moshe, Kristensen, Poul, Huang, Hao, Willner, Alan E., Ramachandran, Siddharth

“…Internet data traffic capadty is rapidly reaching limits imposed by optical fiber nonlinear effects. Having almost exhausted available degrees of freedom to…”
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Vortex fibers for STED microscopy by Yan, Lu, Kristensen, Poul, Ramachandran, Siddharth

“…Super-resolution imaging using the principles of stimulated emission depletion (STED) microscopy requires collinear excitation of a sample with a…”
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Inter-modal Raman amplification of OAM fiber modes by Rottwitt, Karsten, Koefoed, Jacob Gade, Ingerslev, Kasper, Kristensen, Poul

“…Raman scattering among conventional linearly polarized (LP) modes in single mode optical fibers is generally accepted as a promising way to achieve distributed…”
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Adrm1, a Putative Cell Adhesion Regulating Protein, is a Novel Proteasome-associated Factor by Jørgensen, Jakob Ploug, Lauridsen, Anne-Marie, Kristensen, Poul, Dissing, Karen, Johnsen, Anders H., Hendil, Klavs B., Hartmann-Petersen, Rasmus

“…We have identified Adrm1 as a novel component of the regulatory ATPase complex of the 26 S proteasome: Adrm1 was precipitated with an antibody to proteasomes…”
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13.4km OAM state propagation by recirculating fiber loop by Gregg, Patrick, Kristensen, Poul, Ramachandran, Siddharth

“…Enabled by an enhanced effective index separation (Δneff = 1.7 × 10 ) and low transmission loss (0.8dB/km), OAM states are propagated over 13.4km in an air…”
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Scaling information pathways in optical fibers by topological confinement by Ma, Zelin, Kristensen, Poul, Ramachandran, Siddharth

“…Spatial mode-count scalability in optical fibers is of paramount importance for addressing the upcoming information-capacity crunch, reducing energy…”
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Comparison of the decameric structure of peroxiredoxin-II by transmission electron microscopy and X-ray crystallography by Harris, J.Robin, Schröder, Ewald, Isupov, Michail N., Scheffler, Dirk, Kristensen, Poul, Littlechild, Jennifer A., Vagin, Alexei A., Meissner, Ulrich

“…The decameric human erythrocyte protein torin is identical to the thiol-specific antioxidant protein-II (TSA-II), also termed peroxiredoxin-II (Prx-II). Single…”
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Subunit Arrangement in the Human 20s Proteasome by Kopp, Friedrich, Hendil, Klavs B., Dahlmann, Burkhardt, Kristensen, Poul, Sobek, Axel, Uerkvitz, Wolfgang

“…In human 20S proteasomes two copies of each of seven different α -type and seven different β -type subunits are assembled to form a stack of four…”
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12 mode, WDM, MIMO-free orbital angular momentum transmission by Ingerslev, Kasper, Gregg, Patrick, Galili, Michael, Da Ros, Francesco, Hu, Hao, Bao, Fangdi, Usuga Castaneda, Mario A, Kristensen, Poul, Rubano, Andrea, Marrucci, Lorenzo, Rottwitt, Karsten, Morioka, Toshio, Ramachandran, Siddharth, Oxenløwe, Leif Katsuo

“…Simultaneous MIMO-free transmission of 12 orbital angular momentum (OAM) modes over a 1.2 km air-core fiber is demonstrated. WDM compatibility of the system is…”
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Experimental demonstration of intermodal nonlinear effects between full vectorial modes in a few moded fiber by Rishøj, Lars, Kristensen, Poul, Ramachandran, Siddharth, Rottwitt, Karsten

“…We experimentally investigate intermodal nonlinear interactions, such as Raman scattering and four wave mixing. The fiber used is a specially designed few…”
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Complex mode amplitude measurement for a six-mode optical fiber by Golowich, Steven, Bozinovic, Nenad, Kristensen, Poul, Ramachandran, Siddharth

“…We propose a measurement protocol and parameter estimation algorithm to recover the powers and relative phases of each of the vector modes present at the…”
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Measurement of effective refractive-index differences in a few-mode fiber by axial fiber stretching by Savolainen, Juha-Matti, Grüner-Nielsen, Lars, Kristensen, Poul, Balling, Peter

“…A method for measuring the effective refractive-index differences in a few-mode fiber by applying axial fiber stretching is described. This method represents a…”
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Nonlinear generation of broadband polarisation vortices by Ramachandran, Siddharth, Smith, Christian, Kristensen, Poul, Balling, Peter

“…Polarisation-vortex beams over a broad wavelength region are generated by nonlinear transformation of a radially-polarized mode in a specially-designed optical…”
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Long-range fiber-transmission of photons with orbital angular momentum by Bozinovic, Nenad, Kristensen, Poul, Ramachandran, Siddharth

“…We demonstrate propagation of light possessing orbital angular momentum over record fiber-lengths (~km) with minimal cross-talk (<;20-dB). This yields a novel…”
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Corrigendum to “Review — Mitochondria-rich cells as experimental model in studies of epithelial chloride channels” [Biochim. Biophys. Acta 1566 (2002) 28–43] by Willumsen, Niels J., Amstrup, Jan, Møbjerg, Nadja, Jespersen, Åse, Kristensen, Poul, Larsen, E. Hviid

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Dispersion-compensating fibers by Gruner-Nielsen, L., Wandel, M., Kristensen, P., Jorgensen, C., Jorgensen, L.V., Edvold, B., Palsdottir, B., Jakobsen, D.

“…This paper reviews properties and use of conventional single-mode dispersion-compensating fibers (DCFs). The quality of the dispersion compensation expressed…”
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Broadband Mode Converters by Femtosecond-Laser-Light Refractive-Index Tailoring by Savolainen, Juha-Matti, Kristensen, Poul, Gruner-Nielsen, Lars, Balling, Peter

“…Possible designs for a new type of mode converters based on microstructuring the refractive-index profile of an optical fiber with ultrashort laser pulses are…”
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Impact of the Scalar Approximation on the Prediction of the Group Velocity Dispersion by Pedersen, M. E. V., Kristensen, P., Gruner-Nielsen, L., Rottwitt, K.

“…A detailed study of the impact of using a scalar approximation to the wave equation on the prediction of the group velocity dispersion is shown by comparing…”
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Erbium-Doped Fiber Amplification of 28 OAM Modes by Greenberg, Aaron P., Kristensen, PoUl, Mitrovic, Miranda, Ramachandran, Siddharth

“…Exploiting the regime of topological confinement that has enabled scaling mode counts in passive fibers, we demonstrate the first active version of such fibers…”
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