Browsing by Author "Lecomte, Steve"
Now showing items 1-20 of 67
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100-attosecond timing jitter from low-noise passively mode-locked solid-state laser
Portuondo, Erwin; Paschotta, Rüdiger; Lecomte, Steve (2014) -
9.6 GHz ultra-low phase noise signal generation from a diode-pumped solid-state laser
Portuondo-Campa, Erwin; Buchs, Gilles; Kundermann, Stefan; Lecomte, Steve (2015-10)We present ultra-low phase noise microwave generation based on a photonics oscillator. By using an ultra-narrow linewidth continuous-wave laser stabilized on a high-finesse optical cavity as a frequency reference, an optical ... -
A microphotonic astrocomb
Obrzud, Ewelina; Rainer, Monica; Harutyunyan, Avet; Anderson, Miles H.; Liu, Junqiu; Geiselmann, Michael; Chazelas, Bruno; Kundermann, Stefan; Lecomte, Steve; Cecconi, Massimo; Ghedina, Adriano; Molinari, Emilio; Pepe, Francesco; Wildi, François; Bouchy, François; Kippenberg, Tobias J.; Herr, Tobias (2019-01)A microphotonic astrocomb is demonstrated via temporal dissipative Kerr solitons in photonic-chip-based silicon nitride microresonators with a precision of 25?cm?s–1 (radial velocity equivalent), useful for Earth-like ... -
Achieving Efficient Conversion and Broadband Operation in Pulse-Driven Kerr Microresonators
Anderson, Miles; Bouchand, Romain; Obrzud, Ewelina; Liu, Junqiu; Karlen, Sylvain; Lucas, Erwan; Lecomte, Steve; Herr, Tobias; Kippenberg, Tobias J. (2018) -
Advances in the development of an Extra Small Atomic Reference (XSAR)
Haesler, Jacques; Bennès, Jonathan; Lecomte, Steve (2010-04)This paper describes a one year work started at CSEM in 2009. At the end of the project, a system level prototype of an Extra Small Atomic Reference (XSAR) should be realized by teaming up different know-hows available at ... -
Alkali metal condensation zones in MEMS alkali vapor cells and characterization in CPT clock
Karlen, Sylvain; Overstolz, Thomas; Gobet, Jean; Haesler, Jacques; Droz, Fabien; Lecomte, Steve (2019-05-05)We fabricated MEMS vapor cells gold microdiscs, allowing the condensation of alkali metal on preferred locations without the use of a thermal gradient. Reduction of light-shift induced long-term frequency instability in ... -
All-fiber Electro-optic Frequency Comb for Near-Infrared Astronomical Spectrograph Calibration
Obrzud, Ewelina; Brasch, Victor; Lecomte, Steve; Wildi, François; Bouchy, François; Pepe, Francesco; Herr, Tobias (2019) -
Broadband Efficient Soliton Microcombs in Pulse-Driven Photonic Microresonators
Anderson, Miles; Bouchand, Romain; Obrzud, Ewelina; Obrzud, Ewelina; Liu, Junqiu; Karlen, Sylvain; Lecomte, Steve; Herr, Tobias; Kippenberg, Tobias J. (2019-05-05)Broadband single-soliton based frequency combs, with a detectable repetition rate of 28 GHz, are efficiently generated through pulse-driving of a chip-based Si3N4 microresonator. We observe an influence of the pulse-driving ... -
Broadband Laser Frequency Comb Based on Electro-Optic Modulation for Astronomical Spectrograph Calibration
Obrzud, Ewelina; Lecomte, Steve; Pepe, Francesco; Wildi, Francois; Bouchy, Francois; Herr, Tobias; Rainer, Monica; Harutyunyan, Avet; Chazelas, Bruno; Cecconi, Massimo; Ghedina, Adriano; Molinari, Emilio; Kundermann, Stefan; Brasch, Victor (2019) -
Broadband near-infrared astronomical spectrometer calibration and on-sky validation with an electro-optic laser frequency comb
Obrzud, Ewelina; Rainer, Monica; Harutyunyan, Avet; Chazelas, Bruno; Cecconi, Massimo; Ghedina, Adriano; Molinari, Emilio; Kundermann, Stefan; Lecomte, Steve; Pepe, Francesco; Wildi, François; Bouchy, François; Herr, Tobias (2018-12-24)The quest for extrasolar planets and their characterization as well as studies of fundamental physics on cosmological scales rely on capabilities of high-resolution astronomical spectroscopy. A central requirement is a ... -
Ceramic based flat form factor miniature atomic clock physics package (C-MAC)
Haesler, Jacques; Kautio, Kari; Balet, Laurent; Karlen, Sylvain; Overstolz, Thomas; Gallinet, Benjamin; Herr, Tobias; Lecomte, Steve; Droz, Fabien; Karioja, Pentti; Lahti, Markku (2017-04-03) -
Compact gigahertz frequency comb generation: how short do the pulses need to be?
Pekarek, Selina; Stumpf, Max C.; Lecomte, Steve; Kundermann, Stefan; Klenner, Alexander; Südmeyer, Thomas; Dudley, John M.; Keller, Ursula (2012-01-29)We investigate the required pulse duration for coherent supercontinuum generation for CEO detection in the 1-µm and 1.5-µm spectral regime. We demonstrate the first self-referenceable frequency comb from a gigahertz ... -
Compact Hz-level linewidth laser system
Portuondo-Campa, Erwin; Kundermann, Stefan; Lecomte, Steve (2012-04) -
Comparison of different carrier-envelope frequency stabilization methods for a high performance DPSSL frequency comb
Kundermann, Stefan; Lecomte, Steve (2015-04)Carrier envelope frequency (fCEO) stabilization of frequency combs is traditionally achieved via power modulation of the pump of the comb oscillator. A further possibility is to shift the laser fCEO using an external ... -
Cu-Cu thermocompression bonding as an innovative sealing method for MEMS atomic vapor cells
Karlen, Sylvain; Haesler, Jacques; Overstolz, Thomas; Bergonzi, Giovanni; Lecomte, Steve (2017) -
Development of a transportable optically-pumped cesium beam clock
Berthoud, Patrick; Haldimann, Manuel; Michaud, Alain; Kundermann, Stefan; Boiko, Dmitri L.; Lecomte, Steve; Hermann, Virgile; André, Muriel (2015) -
Digital OPLL-based distributed Brillouin sensing system in optical fibers
Chin, Sanghoon; Denis, Séverine; Kundermann, Stefan; Brasch, Victor; Lecomte, Steve (2022-05-23)A digital optical phase-locked loop (OPLL) has been implemented to develop a distributed Brillouin sensing system in optical fibers. In our experiment, two commercial semiconductor lasers are phase-locked to each other ... -
Driving an eXtra Small Atomic Resonator with low-power integrated RF frequency and laser locked loops
Haesler, Jacques; Overstolz, Thomas; Jose James, Rony; Pierer, Jörg; Contaldo, Matteo; Ruffieux, David; Lecomte, Steve (2011-05)The first prototype of an eXtra Small Atomic Resonator (XSAR) was presented by CSEM in 2009. This paper describes the progress realized in 2010 towards the realization of a low-power miniature atomic clock. We present a ... -
Dual frequency comb interferometer for fast and high resolution optical spectroscopy
Portuondo, Erwin; Bennès, Jonathan; Kundermann, Stefan; Lecomte, Steve (2015) -
Efficient carrier-envelope offset frequency stabilization through gain modulation via stimulated emission
Karlen, Lauriane; Buchs, Gilles; Portuondo-Campa, Erwin; Lecomte, Steve (2016-01-15)A novel scheme for intracavity control of the carrier-envelope offset (CEO) frequency of a 100 MHz mode-locked Er:Yb:glass diode-pumped solid-state laser (DPSSL) based on the modulation of the laser gain via stimulated ...