Zobrazeno 1 - 10
of 40
pro vyhledávání: '"V. Ligeret"'
Autor:
F.-J. Vermersch, V. Ligeret, Olivier Parillaud, Michel Krakowski, Michel Lecomte, Michel Calligaro, Shailendra Bansropun
Publikováno v:
International Conference on Space Optics — ICSO 2006.
Atomic clocks will be used in the future European positioning system Galileo. Among them, the optically pumped clocks provide a better alternative with comparable accuracy for a more compact system. For these systems, diode lasers emitting at 852nm a
Autor:
V. Ligeret, Laurent Lombez, Olivier Gilard, S. Bonnefont, Olivier Gauthier-Lafaye, Xavier Marie, F. Lozes-Dupuy, Delphine Lagarde, O.. Parillaud, Mathieu Boutillier, M. Krakowski
Publikováno v:
IEEE Transactions on Nuclear Science. 56:2155-2159
We report on a novel method to measure radiation induced non radiative carrier lifetime modifications in laser diodes. This method is based on the conjugation of theoretical gain calculation, experimental gain measurements, and threshold variation me
Autor:
J. Bébé Manga Lobé, Michel Calligaro, Michael Tran, M. Carbonnelle, A. Larrue, Marco Lamponi, Olivier Parillaud, E. Vinet, C. Cayron, Nicolas Michel, Y. Robert, Michel Garcia, N. von Bandel, Michel Krakowski, V. Ligeret, Roberto Mostallino, Michel Lecomte, O. Drisse
Publikováno v:
Quantum Sensing and Nanophotonic Devices XII.
Laser diodes emitting at different wavelengths can address various applications. 852nm or 894nm single frequency low linewidth laser diodes are needed for Cs pumping for realization of atomic clocks. 780nm high power low linewidth laser diodes and am
Autor:
Michel Calligaro, O. Parillaud, Shailendra Bansropun, F.-J. Vermersch, Guido Giuliani, Michel Lecomte, Michel Krakowski, V. Ligeret
Publikováno v:
IEEE Photonics Technology Letters. 20:1145-1147
In this letter, we demonstrate the design, fabrication, and characterization of single-mode distributed feedback (DFB) lasers emitting at 852 nm for atomic clocks and spatial applications. The epitaxial structure comprises an aluminium-free active re
Autor:
Olivier Parillaud, Michel Calligaro, Shailendra Bansropun, Michel Lecomte, C. Cayron, Y. Robert, P. Resneau, Michel Krakowski, J. Nagle, V. Ligeret
Publikováno v:
Novel In-Plane Semiconductor Lasers IX.
The development of techniques such as atom optical pumping, for atomics clocks or precise gyroscopes, requires laser diodes with high power and excellent spectral (narrow linewidth) and spatial qualities together with high reliability. We have realiz
Autor:
Y. Robert, P. Resneau, Olivier Parillaud, V. Ligeret, Michel Lecomte, Michel Krakowski, Michel Calligaro, J. Nagle, Shailendra Bansropun, C. Cayron
Publikováno v:
SPIE Proceedings.
Precise gyroscopes and atomic clocks are in high demand for positioning and flight navigation systems or measurement of fundamental constants. The development of techniques such as atom optical pumping (Cs or Rb) requires laser diodes with high power
Autor:
V. Ligeret, Michel Lecomte, N. Dimarcq, Sean Perrin, David Holleville, Michel Calligaro, Shailendra Bansropun, Michel Krakowski, Olivier Parillaud
Publikováno v:
2008 IEEE 21st International Semiconductor Laser Conference.
We have developed single frequency and single spatial mode laser structures with very narrow linewidth (~850 kHz @ 15 mW measured with an ECL). We demonstrate also a very good interaction between the DFB laser and Cs atoms.
Autor:
Stéphane Guérandel, Sean Perrin, J. Delporte, F. X. Esnault, N. Dimarcq, V. Ligeret, David Holleville
Publikováno v:
2008 IEEE International Frequency Control Symposium
2008 IEEE International Frequency Control Symposium, May 2008, Honolulu, United States. pp.118-121, ⟨10.1109/FREQ.2008.4622970⟩
2008 IEEE International Frequency Control Symposium, May 2008, Honolulu, United States. pp.118-121, ⟨10.1109/FREQ.2008.4622970⟩
We present the architecture of a A4 size optical bench developed for the compact cold atom clock HORACE. This proceeding focuses on two original sub systems as compact extended cavity laser diode with optical isolator places inside the laser cavity,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f553cd97206d88ee5cb662caa1a37060
https://hal.science/hal-03734732
https://hal.science/hal-03734732
Autor:
D. Holleville, Michel Calligaro, Shailendra Bansropun, Michel Krakowski, N. Dimarcq, Olivier Parillaud, Michel Lecomte, V. Ligeret
Publikováno v:
SPIE Proceedings.
There is a growing demand for precise gyroscopes and atomic clocks for positioning, flight navigation systems and aerospatial applications. One of the prerequisites for atomic optical pumps is a laser diode with high power (a few 10mW), narrow linewi
Autor:
Olivier Parillaud, N. Dimarcq, Michel Lecomte, V. Ligeret, Michel Krakowski, D. Holleville, Michel Calligaro, Shailendra Bansropun, Nicolas Michel
Publikováno v:
SPIE Proceedings.
There is a growing demand for precise gyroscopes and atomic clocks for positioning, flight navigation systems and aerospatial applications. One of the prerequisites for atomic optical pumps is a laser diode with high power (≈100mW), narrow linewidt