Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Jacob Gade Koefoed"'
Publikováno v:
APL Photonics, Vol 4, Iss 3, Pp 030802-030802-10 (2019)
Raman scattering among conventional linearly polarized (LP) modes in single mode optical fibers is generally accepted as a promising way to achieve distributed amplification due to the fact that Raman amplification may provide gain at any wavelength,
Externí odkaz:
https://doaj.org/article/b0314974bb084fda94ad18f337014685
Autor:
Mikkel Heuck, Jacob Gade Koefoed, Jesper Bjerge Christensen, Yunhong Ding, Lars Hagedorn Frandsen, Karsten Rottwitt, Leif Katsuo Oxenløwe
Publikováno v:
New Journal of Physics, Vol 21, Iss 3, p 033037 (2019)
Microring resonators are attractive for low-power frequency conversion via Bragg-scattering four-wave-mixing due to their comb-like resonance spectrum, which allows resonant enhancement of all four waves while maintaining energy and momentum conserva
Externí odkaz:
https://doaj.org/article/b83a42f1b71e4d28969c5c64818dd0e7
Publikováno v:
Fibers, Vol 6, Iss 2, p 32 (2018)
Four-wave mixing in optical fibers has been proven to have many applications within processing of classical optical signals. In addition, recent developments in multimode fibers have made it possible to achieve the necessary phase-matching for effici
Externí odkaz:
https://doaj.org/article/47725d3d617a438ebd816cce0930719f
Publikováno v:
ICTON
Being able to generate and process quantum states are essential functionalities in quantum communication. Examples of the processing include conversion of the wavelength of quantum states or modification of their temporal shape. The combined use of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f18a2d62b1cbdb746a7e27a012e9d1df
https://doi.org/10.1109/icton.2019.8840313
https://doi.org/10.1109/icton.2019.8840313
Publikováno v:
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Sources of indistinguishable single photons are a key component of many optical quantum systems such as linear optical quantum computers [1] or quantum communication [2]. Spontaneous four-wave mixing is a promising method for in-fiber photon-pair gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::144a363e5dd0135c6418079e90765a0b
https://doi.org/10.1109/cleoe-eqec.2019.8872819
https://doi.org/10.1109/cleoe-eqec.2019.8872819
Publikováno v:
Koefoed, J G, Christensen, J B, McKinstrie, C J & Rottwitt, K 2019, ' Effects of higher-order dispersion on photon-pair generation by four-wave mixing ', Physical Review A, vol. 99, no. 1, 013844 . https://doi.org/10.1103/PhysRevA.99.013844
We present analytical results revealing the impact of higher-order dispersion on four-wave mixing in quantum applications. We derive fundamental relations between input and output modes in dispersive four-wave mixing processes and apply the theory to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a580fb9fd76916cac333f57f0186b408
https://orbit.dtu.dk/en/publications/b72f9827-a02c-43dc-bb5c-198e98cb8b9e
https://orbit.dtu.dk/en/publications/b72f9827-a02c-43dc-bb5c-198e98cb8b9e
Autor:
Karsten Rottwitt, Jacob Gade Koefoed
Publikováno v:
Koefoed, J G & Rottwitt, K 2019, ' Complete evolution equation for the joint amplitude in photon-pair generation through spontaneous four-wave mixing ', Physical Review A, vol. 100, no. 6, 063813 . https://doi.org/10.1103/physreva.100.063813
As four-wave-mixing-based photon-pair sources mature, accurate modeling of the photon-pair properties becomes important. Unlike spontaneous parametric down-conversion, four-wave mixing is accompanied by a number of parasitic effects such as nonlinear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f5397ae341afeca220b7e50b1232f69
https://orbit.dtu.dk/en/publications/3ac74899-c00d-41ea-8705-93e0b9b5cbf0
https://orbit.dtu.dk/en/publications/3ac74899-c00d-41ea-8705-93e0b9b5cbf0
Autor:
Mario A. Usuga Castaneda, Jesper B. Christensen, Karsten Rottwitt, Jacob Gade Koefoed, Erik Christensen
Publikováno v:
ICTON
The strong interest in space-division multiplexing of classical communication signals has resulted in development of optical fibers that support propagation of multiple modes. This has paved the way for progress in signal processing using multiple mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8852707cee99f6741e429597bd56f6b
https://doi.org/10.1109/icton.2018.8473759
https://doi.org/10.1109/icton.2018.8473759
Publikováno v:
Christensen, J B, Koefoed, J G, Rottwitt, K & McKinstrie, C J 2018, ' Engineering spectrally unentangled photon pairs from nonlinear microring resonators by pump manipulation ', Optics Letters, vol. 43, no. 4, pp. 859-862 . https://doi.org/10.1364/OL.43.000859
The future of integrated quantum photonics relies heavily on the ability to engineer refined methods for preparing the quantum states needed to implement various quantum protocols. An important example of such states are quantum-correlated photon pai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::484e9e01e0aa225595d38d0782a5efde
https://pubmed.ncbi.nlm.nih.gov/29444012
https://pubmed.ncbi.nlm.nih.gov/29444012
Autor:
Jesper B. Christensen, Karsten Rottwitt, Mikkel Heuck, Yunhong Ding, Jacob Gade Koefoed, Lars Hagedorn Frandsen
Publikováno v:
Conference on Lasers and Electro-Optics.
We experimentally study four-wave-mixing frequency conversion in two coupled silicon ring-resonators. The asymmetric super-mode structure causes highly directional conversion and enables near-unity efficiency which is important for photonic quantum i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::763d157e86862b257d51014ccdfe15d4
https://doi.org/10.1364/cleo_at.2018.jth4c.4
https://doi.org/10.1364/cleo_at.2018.jth4c.4