Search Results - "Rottwitt, K."

Inter-modal four-wave mixing study in a two-mode fiber by Friis, S M M, Begleris, I, Jung, Y, Rottwitt, K, Petropoulos, P, Richardson, D J, Horak, P, Parmigiani, F

“…We demonstrate efficient four-wave mixing among different spatial modes in a 1-km long two-mode fiber at telecommunication wavelengths. Two pumps excite the LP…”
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Temporal mode selectivity by frequency conversion in second-order nonlinear optical waveguides by Reddy, D V, Raymer, M G, McKinstrie, C J, Mejling, L, Rottwitt, K

“…We explore theoretically the feasibility of using frequency conversion by sum- or difference-frequency generation, enabled by three-wave-mixing, for…”
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Shape-preserving and unidirectional frequency conversion by four-wave mixing by Christensen, J B, Koefoed, J G, Bell, B A, McKinstrie, C J, Rottwitt, K

“…In this work, we investigate the properties of four-wave mixing Bragg scattering driven by orthogonally polarized pumps in a birefringent waveguide. This…”
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Nonlinear four-wave mixing with enhanced diversity and selectivity via spin and orbital angular momentum conservation by Liu, X., Christensen, E. N., Rottwitt, K., Ramachandran, S.

“…Light that can carry orbital angular momentum (OAM) has found a variety of applications in super-resolution microscopy, optical communications, and laser…”
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Experimental demonstration of the DPTS QKD protocol over a 170 km fiber link by Da Lio, B., Bacco, D., Cozzolino, D., Ding, Y., Dalgaard, K., Rottwitt, K., Oxenløwe, L. K.

“…Quantum key distribution (QKD) is a promising technology that aims to solve the security problem arising from the advent of quantum computers. While the main…”
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Generation of two-temporal-mode photon states by vector four-wave mixing by McKinstrie, C J, Christensen, J B, Rottwitt, K, Raymer, M G

“…Photon pair states and multiple-photon squeezed states have many applications in quantum information science. In this paper, Green functions are derived for…”
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Temporal mode sorting using dual-stage quantum frequency conversion by asymmetric Bragg scattering by Christensen, Jesper B, Reddy, Dileep V, McKinstrie, C J, Rottwitt, K, Raymer, M G

“…The temporal shape of single photons provides a high-dimensional basis of temporal modes, and can therefore support quantum computing schemes that go beyond…”
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Interference patterns and extinction ratio of the diatom Coscinodiscus granii by Maibohm, C, Friis, S M M, Ellegaard, M, Rottwitt, K

“…We report experimental and theoretical verification of the nature and position of multiple interference points of visible light transmitted through the valve…”
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Quantum frequency translation by four-wave mixing in a fiber: low-conversion regime by Mejling, L, McKinstrie, C J, Raymer, M G, Rottwitt, K

“…In this paper we consider frequency translation enabled by Bragg scattering, a four-wave mixing process. First we introduce the theoretical background of the…”
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Temporal mode selectivity by frequency conversion in second-order nonlinear optical waveguides: erratum by Reddy, Dileep V, Raymer, M G, Mckinstrie, C J, Mejling, L, Rottwitt, K

“…We correct typographical errors in four equations showing the integral forms of the equations of motion and the corresponding perturbative approximation…”
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Raman and loss induced quantum noise in depleted fiber optical parametric amplifiers by Friis, S M M, Rottwitt, K, McKinstrie, C J

“…We present a semi-classical approach for predicting the quantum noise properties of fiber optical parametric amplifiers. The unavoidable contributors of noise,…”
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Pump interactions in a 100-nm bandwidth Raman amplifier by Kidorf, H., Rottwitt, K., Nissov, M., Ma, M., Rabarijaona, E.

“…A design for a 100-nm bandwidth Raman amplifier is presented. The amplifier is pumped with eight, 130-mW lasers with wavelengths ranging from 1416 to 1502 nm…”
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Geometric interpretation of four-wave mixing by Ott, J. R., Steffensen, H., Rottwitt, K., McKinstrie, C. J.

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Experimental methods and modeling techniques for description of cell population heterogeneity by Lencastre Fernandes, R., Nierychlo, M., Lundin, L., Pedersen, A.E., Puentes Tellez, P.E., Dutta, A., Carlquist, M., Bolic, A., Schäpper, D., Brunetti, A.C., Helmark, S., Heins, A.-L., Jensen, A.D., Nopens, I., Rottwitt, K., Szita, N., van Elsas, J.D., Nielsen, P.H., Martinussen, J., Sørensen, S.J., Lantz, A.E., Gernaey, K.V.

“…With the continuous development, in the last decades, of analytical techniques providing complex information at single cell level, the study of cell…”
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Sub-100 fs pulses from an all-polarization maintaining Yb-fiber oscillator with an anomalous dispersion higher-order-mode fiber by Verhoef, A J, Zhu, L, Israelsen, S Møller, Grüner-Nielsen, L, Unterhuber, A, Kautek, W, Rottwitt, K, Baltuška, A, Fernández, A

“…We present an Yb-fiber oscillator with an all-polarization-maintaining cavity with a higher-order-mode fiber for dispersion compensation. The polarization…”
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Effects of nonlinear phase modulation on Bragg scattering in the low-conversion regime by Mejling, L, Cargill, D S, McKinstrie, C J, Rottwitt, K, Moore, R O

“…In this paper, we consider the effects of nonlinear phase modulation on frequency conversion by four-wave mixing (Bragg scattering) in the low-conversion…”
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Full and semi-analytic analyses of two-pump parametric amplification with pump depletion by Steffensen, H, Ott, J R, Rottwitt, K, McKinstrie, C J

“…This paper solves the four coupled equations describing non-degenerate four-wave mixing, with the focus on amplifying a signal in a fiber optical parametric…”
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Amplitude Regeneration of RZ-DPSK Signals in Single-Pump Fiber-Optic Parametric Amplifiers by Peucheret, C., Lorenzen, M., Seoane, J., Noordegraaf, D., Nielsen, C.V., Gruner-Nielsen, L., Rottwitt, K.

“…The input power tolerance of a single-pump fiber-optic parametric amplifier (FOPA) is experimentally shown to be enhanced for return-to-zero differential…”
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730-nm optical parametric conversion from near- to short-wave infrared band by Chavez Boggio, J M, Windmiller, J R, Knutzen, M, Jiang, R, Bres, C, Alic, N, Stossel, B, Rottwitt, K, Radic, S

“…A record 730 nm parametric conversion in silica fiber from the near-infrared to the short-wave infrared band is reported and analyzed. A parametric gain in…”
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Fabrication of Ge nanocrystals doped silica-on-silicon waveguides and observation of their strong quantum confinement effect by Ou, H., Rottwitt, K.

“…Germanium (Ge) nanocrystals embedded in silica matrix is an interesting material for new optoelectronic devices. In this paper, standard silica-on-silicon…”
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