Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Lars Grüner Nielsen"'
Autor:
Shreesha Rao D. S., Mikkel Jensen, Lars Grüner-Nielsen, Jesper Toft Olsen, Peter Heiduschka, Björn Kemper, Jürgen Schnekenburger, Martin Glud, Mette Mogensen, Niels Møller Israelsen, Ole Bang
Publikováno v:
Light: Science & Applications, Vol 10, Iss 1, Pp 1-13 (2021)
Externí odkaz:
https://doaj.org/article/1965567536f64df7bd3cb3ce035d2097
Autor:
Korbinian J. Kaltenecker, Shreesha Rao D. S., Mattias Rasmussen, Henrik B. Lassen, Edmund J. R. Kelleher, Enno Krauss, Bert Hecht, N. Asger Mortensen, Lars Grüner-Nielsen, Christos Markos, Ole Bang, Nicolas Stenger, Peter Uhd Jepsen
Publikováno v:
APL Photonics, Vol 6, Iss 6, Pp 066106-066106-10 (2021)
Unlocking the true potential of optical spectroscopy on the nanoscale requires development of stable and low-noise laser sources. Here, we have developed a low-noise supercontinuum (SC) source based on an all-normal dispersion fiber pumped by a femto
Externí odkaz:
https://doaj.org/article/20b1de913e84456482e33e3c090a2ffa
Autor:
Lars Grüner-Nielsen, Neethu Mariam Mathew, Michael Galili, Lars Søgaard Rishøj, Karsten Rottwitt
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
Results for air clad photonic lanterns are presented including new results for a 6-mode photonic lantern. Results for cross talk dynamics in a 1.6 km link versus both time and wavelengths are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78a580cc1a829c8ed77c4b648848884b
https://doi.org/10.23919/ofc49934.2023.10116116
https://doi.org/10.23919/ofc49934.2023.10116116
Publikováno v:
Technical University of Denmark Orbit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9905699e2684e91ed0ee9481f15d4ab3
https://doi.org/10.1109/sum53465.2022.9858250
https://doi.org/10.1109/sum53465.2022.9858250
Autor:
João M B, Pereira, Lars, Grüner-Nielsen, Karsten, Rottwitt, Graham, Town, Fredrik, Laurell, Walter, Margulis
Publikováno v:
Optics express. 30(8)
We demonstrate the use of the electrooptic effect to control the propagation constant of the guided modes in silicate few mode fibers with internal electrodes. The electrooptic effect induces a perturbation of the fiber's refractive index profile tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::25d33826c492c1bcbc29b302ff8af3f5
https://pubmed.ncbi.nlm.nih.gov/35472882
https://pubmed.ncbi.nlm.nih.gov/35472882
Autor:
Dipankar Sen, Anton Classen, Lars Grüner-Nielsen, Gibbs, Holly C., Shahriar Esmaeili, Philip Hemmer, Andrius Baltuska, Sokolov, Alexei V., Leitgeb, Rainer A., Alma Fernández, Verhoef, Aart J.
Publikováno v:
Technical University of Denmark Orbit
A fiber-based robust, design-flexible FD-OCM technique using a Bessel-like LP02 mode is demonstrated. Extended DOF compared to Gaussian illumination of equal spot-size at focus is reported. We characterize the resolution performance of this system.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9fcbcb6250364330c6a677e5e448162
https://doi.org/10.1364/cleo_at.2022.am5i.5
https://doi.org/10.1364/cleo_at.2022.am5i.5
Autor:
João Manoel Barbosa Pereira, Lars Grüner-Nielsen, Karsten Rottwitt, Fredrik Laurell, Walter Margulis
Publikováno v:
Conference on Lasers and Electro-Optics.
The electrooptic effect is used in a few-mode fiber to control intermodal interference. The fiber has internal electrodes and is poled to increase its electrooptic coefficient. The response time is in the nanosecond range.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9200e317cc1daff36c29a53327831c38
https://doi.org/10.1364/cleo_si.2022.stu5p.1
https://doi.org/10.1364/cleo_si.2022.stu5p.1
Autor:
Holly C. Gibbs, Andrius Baltuška, Lars Grüner-Nielsen, Anton Classen, Dipankar Sen, Philip R. Hemmer, Alexei V. Sokolov, Shahriar Esmaeili, Rainer A. Leitgeb, Alma Fernández, Aart J. Verhoef
Publikováno v:
Biomed Opt Express
Sen, D, Classen, A, Fernandez, A, Gruner-Nielsen, L, Gibbs, H C, Esmaeili, S, Hemmer, P, Baltuska, A, Sokolov, A V, Leitgeb, R A & Verhoef, A J 2021, ' Extended focal depth Fourier domain optical coherence microscopy with a Bessel-beam-LP02mode-From a higher order mode fiber ', Biomedical Optics Express, vol. 12, no. 12, pp. 7327-7337 . https://doi.org/10.1364/BOE.442081
Sen, D, Classen, A, Fernandez, A, Gruner-Nielsen, L, Gibbs, H C, Esmaeili, S, Hemmer, P, Baltuska, A, Sokolov, A V, Leitgeb, R A & Verhoef, A J 2021, ' Extended focal depth Fourier domain optical coherence microscopy with a Bessel-beam-LP02mode-From a higher order mode fiber ', Biomedical Optics Express, vol. 12, no. 12, pp. 7327-7337 . https://doi.org/10.1364/BOE.442081
We present a robust fiber-based setup for Bessel-like beam extended depth-of-focus Fourier-domain optical coherence microscopy, where the Bessel-like beam is generated in a higher order mode fiber module. In this module a stable guided LP02 core mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79964555bd0f8c23ac50349925908c46
https://europepmc.org/articles/PMC8713682/
https://europepmc.org/articles/PMC8713682/
Publikováno v:
Mathew, N M, Grüner-Nielsen, L, Lillieholm, M, Galili, M & Rottwitt, K 2022, ' Air-clad photonic lanterns: fabrication and applications ', Journal of Optics, vol. 24, no. 5, 054011 . https://doi.org/10.1088/2040-8986/ac5f23
The fabrication steps for an air-clad photonic lantern that can excite the first two LP mode groups in a multimode fiber are presented in this paper. A multiplexing crosstalk below −16.8 dB is measured on the fabricated lantern using S 2 imaging te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6edc60e975e0aa09c07c13c0cd9d14f2
https://doi.org/10.1088/2040-8986/ac5f23
https://doi.org/10.1088/2040-8986/ac5f23