Zobrazeno 1 - 10
of 31
pro vyhledávání: '"T. Fremberg"'
Autor:
Marina Zajnulina, Mateusz Wysmolek, Andreas Kelz, J.M. Chavez Boggio, M. Rutowska, Domenico Giannone, Hakan Sayinc, C. Sandin, T. Fremberg, Markus Roth, D. Bodenmüller, Benito Moralejo
Publikováno v:
Optics Communications. 415:186-193
On-sky tests conducted with an astro-comb using the Potsdam Multi-Aperture Spectrograph (PMAS) at the 3.5 m Calar Alto Telescope are reported. The proposed astro-comb approach is based on cascaded four-wave mixing between two lasers propagating throu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::248905d1debcec49cac06d76ba50d639
https://doi.org/10.1016/j.optcom.2018.01.007
https://doi.org/10.1016/j.optcom.2018.01.007
Autor:
A. D. Müller, V. Dhandapani, Ilona Skorupa, T. Fremberg, Heidemarie Schmidt, Daniel Blaschke, Karina Weber, S. Pahlow, Lars Rebohle, J. Spohn, S. Kurz
Publikováno v:
Applied Surface Science. 545:148729
Silicon substrates with stripe-patterned surface-near electrostatic forces (SNEF) were prepared by local implantation of boron ions into n-type silicon wafers and of phosphorus ions into p-type silicon wafers in a stripe pattern of 12 μm periodicity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aa41ef47f758e9c584e27cf79e61ed9
https://doi.org/10.1016/j.apsusc.2020.148729
https://doi.org/10.1016/j.apsusc.2020.148729
Autor:
Martin Roth, Roger Haynes, J.M. Chavez Boggio, A. A. Rieznik, Marina Zajnulina, Michael Böhm, T. Fremberg
We investigate the generation of optical frequency combs through a cascade of four-wave mixing processes in nonlinear fibres with optimised parameters. The initial optical field consists of two continuous-wave lasers with frequency separation larger
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df5e1b8f7bb930670a36e85328eaa8ef
http://arxiv.org/abs/1704.04915
http://arxiv.org/abs/1704.04915
Autor:
Benito Moralejo, M. Rutowska, Justus Neumann, T. Fremberg, C. Sandin, D. Bodenmüller, J.M. Chavez Boggio, E. Hernandez, Roger Haynes, Andreas Kelz, Mateusz Wysmolek, Markus Roth, Hakan Sayinc, Marina Zajnulina
We here report on recent progress on astronomical optical frequency comb generation at innoFSPEC-Potsdam and present preliminary test results using the fiber-fed Multi Unit Spectroscopic Explorer (MUSE) spectrograph. The frequency comb is generated b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c22cb1594ba6e7626f03f50e588c3439
https://publications.aston.ac.uk/id/eprint/40494/1/915120.pdf
https://publications.aston.ac.uk/id/eprint/40494/1/915120.pdf
Autor:
Marco Lisker, J.M. Chavez Boggio, Roger Haynes, D. Bodenmüller, Markus Roth, Lars Zimmermann, René Eisermann, T. Fremberg, Michael Böhm
Dispersion engineering in silicon nitride (SiX NY ) waveguides is investigated through the optimization of the waveguide transversal dimensions and refractive indices in a multi-cladding arrangement. Ultra-flat dispersion of -84.0 +/- 0.5 ps/nm/km be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55b018985a599e7218842676f3f99077
Autor:
D. Bodenmüller, Lars Zimmermann, R. Eisermann, Markus Roth, Roger Haynes, J.M. Chavez Boggio, T. Fremberg
Publikováno v:
Advanced Photonics.
Dispersion-flattening in silicon-nitride waveguides (dispersion variation of 2ps/nm/km over 500nm) is demonstrated by optimizing the parameters of three cladding layers. SC generation spanning three octaves is shown in those waveguides.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c470ac1ee863c6cdbd352bb3e3ce51b
https://doi.org/10.1364/bgpp.2014.jtu3a.54
https://doi.org/10.1364/bgpp.2014.jtu3a.54
Autor:
R. Eisermann, Michael Böhm, T. Fremberg, Roger Haynes, Markus Roth, Lars Zimmermann, D. Bodenmueller, J.M. Chavez Boggio
Publikováno v:
SPIE Proceedings.
Dispersion engineering in integrated silicon nitride waveguides is numerically and experimentally investigated. We show that by modifying the transversal dimensions of the silicon nitride core, it is possible to have a good control of the chromatic d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::140e36eb214021090c2eaa462355a624
https://doi.org/10.1117/12.2017302
https://doi.org/10.1117/12.2017302
Autor:
Markus Roth, Lars Zimmermann, D. Bodenmüller, Roger Haynes, T. Fremberg, René Eisermann, Michael Böhm, J.M. Chavez Boggio
Publikováno v:
Integrated Optics: Physics and Simulations.
Silicon nitride ring resonators with diameter of 250 and 500 μm are fabricated and their spectral characteristics investigated with the ultimate goal of optical frequency comb generation for astronomical spectrograph calibration. A continuously tuna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32913e9aee647e78e40fb20b40472e31
https://doi.org/10.1117/12.2017300
https://doi.org/10.1117/12.2017300
Publikováno v:
Integrated Optics: Physics and Simulations.
The engineering of the propagation constant in integrated silicon nitride waveguides is numerically investigated. We compare several geometrical designs and show that fairly large chromatic dispersion control is obtained when the transversal dimensio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f2b4bf0656e4591f241b671465c5094
https://doi.org/10.1117/12.2017323
https://doi.org/10.1117/12.2017323
Publikováno v:
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC.
The ability to arbitrarily control the chromatic dispersion in CMOS-compatible waveguides should strengthen the viability of this technology, particularly for nonlinear devices on a chip [1]. Here we report on a systematic investigation of group velo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a443c22f328e34914c28eb8c97d632c7
https://doi.org/10.1109/cleoe-iqec.2013.6801464
https://doi.org/10.1109/cleoe-iqec.2013.6801464