Zobrazeno 1 - 10
of 12
pro vyhledávání: '"V. J. Wittwer"'
Autor:
N. Moroney, L. Del Bino, S. Zhang, M. T. M. Woodley, L. Hill, T. Wildi, V. J. Wittwer, T. Südmeyer, G.-L. Oppo, M. R. Vanner, V. Brasch, T. Herr, P. Del’Haye
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
The authors demonstrate an all-optical method to control the polarization of light. Harnessing the Kerr nonlinearity in an optical resonator, this enables precise polarization control in photonic circuits.
Externí odkaz:
https://doaj.org/article/fd00ecfbbb6c410189f30a5f365163cf
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013047 (2023)
Quantum cascade laser (QCL) frequency combs have revolutionized midinfrared (MIR) spectroscopy by their high brightness and fast temporal resolution, and are a promising technology for fully integrated and cost-effective sensors. As for other integra
Externí odkaz:
https://doaj.org/article/65589c800e82471bb0f9174621d7caca
Autor:
V. J. Wittwer, C. A. Zaugg, W. P. Pallmann, A. E. H. Oehler, B. Rudin, M. Hoffmann, M. Golling, Y. Barbarin, T. Sudmeyer, U. Keller
Publikováno v:
IEEE Photonics Journal, Vol 3, Iss 4, Pp 658-664 (2011)
We present timing jitter measurements of an InGaAs quantum well vertical external cavity surface emitting laser (VECSEL) passively mode locked with a quantum dot semiconductor saturable absorber mirror (SESAM) at 2-GHz repetition rate. It generates 5
Externí odkaz:
https://doaj.org/article/5c15786bdc7f4099affb033f3f111877
Autor:
V. J. Wittwer, R. van der Linden, B. W. Tilma, B. Resan, K. J. Weingarten, T. Sudmeyer, U. Keller
Publikováno v:
IEEE Photonics Journal, Vol 5, Iss 1, Pp 1400107-1400107 (2013)
We present noise measurements of a pulse train emitted from an actively stabilized semiconductor-saturable-absorber-mirror (SESAM) modelocked vertical external cavity surface emitting laser (VECSEL). The laser generated 6-ps pulses with 2-GHz pulse-r
Externí odkaz:
https://doaj.org/article/ddef8ce1835b4de297f43443f4a5c201
Autor:
K N, Komagata, M, Gianella, P, Jouy, F, Kapsalidis, M, Shahmohammadi, M, Beck, R, Matthey, V J, Wittwer, A, Hugi, J, Faist, L, Emmenegger, T, Südmeyer, S, Schilt
Publikováno v:
Optics express. 30(8)
Optical frequency combs (OFCs) based on quantum cascade lasers (QCLs) have transformed mid-infrared spectroscopy. However, QCL-OFCs have not yet been exploited to provide a broadband absolute frequency reference. We demonstrate this possibility by pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::01de9f7913f95f751bf549287cf02b8c
https://pubmed.ncbi.nlm.nih.gov/35472915
https://pubmed.ncbi.nlm.nih.gov/35472915
Autor:
K. N. Komagata, M. Gianella, P. Jouy, F. Kapsalidis, M. Shahmohammadi, M. Beck, R. Matthey, V. J. Wittwer, A. Hugi, J. Faist, L. Emmenegger, T. Südmeyer, S. Schilt
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate that mid-infrared quantum cascade laser frequency combs are highly suitable as high-accuracy frequency references. We fully stabilize the comb and exploit it for comb-calibrated spectroscopy, achieving 100-kHz frequency accuracy at 7.7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14b966532b7d6a529a2ec201f168c5d4
https://doi.org/10.1364/cleo_at.2022.atu4o.6
https://doi.org/10.1364/cleo_at.2022.atu4o.6
Autor:
N. Moroney, L. Del Bino, S. Zhang, M. T. M. Woodley, L. Hill, T. Wildi, V. J. Wittwer, T. Südmeyer, G.-L. Oppo, M. Vanner, V. Brasch, T. Herr, P. Del’Haye
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate an all-optical polarization controller in a high-finesse Fabry-Pérot microresonator. Kerr-nonlinearity-induced symmetry breaking splits linear polarized input light into left- and right-circular polarized components, enabling all-opti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75325c9c1200bd361b063b6b3101a722
https://doi.org/10.1364/cleo_qels.2022.fth2a.3
https://doi.org/10.1364/cleo_qels.2022.fth2a.3
Autor:
N. Moroney, L. Del Bino, S. Zhang, M. T. M. Woodley, L. Hill, T. Wildi, V. J. Wittwer, T. Südmeyer, G.-L. Oppo, M. R. Vanner, V. Brasch, T. Herr, P. Del’Haye
Publikováno v:
Nature Communications 13, 398 (2022). doi:10.1038/s41467-021-27933-x
arXiv: 2104.13892v2
Nature Communications
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
arXiv: 2104.13892v2
Nature Communications
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Kerr-effect-induced changes of the polarization state of light are well known in pulsed laser systems. An example is nonlinear polarization rotation, which is critical to the operation of many types of mode-locked lasers. Here, we demonstrate that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51db7d21b8c447bac6f778f0c18da99a
https://doi.org/10.48550/arxiv.2104.13892
https://doi.org/10.48550/arxiv.2104.13892
Publikováno v:
EPJ Web of Conferences. 267:01021
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3144a1f1c2f5c96183afcd17b8e0b4ba
https://doi.org/10.1051/epjconf/202226701021
https://doi.org/10.1051/epjconf/202226701021
Autor:
K, Balskus, S, Schilt, V J, Wittwer, P, Brochard, T, Ploetzing, N, Jornod, R A, McCracken, Z, Zhang, A, Bartels, D T, Reid, T, Südmeyer
Publikováno v:
Optics Express
We report on the first demonstration of absolute frequency comb metrology with an optical parametric oscillator (OPO) frequency comb. The synchronously-pumped OPO operated in the 1.5-μm spectral region and was referenced to an H-maser atomic clock.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9d9add5022585865521f8c3c45a4def