Browsing CSEM Archive by Author "Obrzud, Ewelina"
Now showing items 1-20 of 28
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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) -
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 ... -
Electro-optic laser frequency comb for spectrograph calibration
Obrzud, Ewelina; Rainer, Monica; Harutyunyan, Avet; Brasch, Victor; Chazelas, Bruno; Cecconi, Massimo; Ghedina, Adriano; Molinari, Emilio; Kundermann, Stefan; Lecomte, Steve; Bouchy, Francois; Wildi, Francois; Pepe, Francesco; Herr, Tobias (2019) -
Frequency comb up- and down-conversion in synchronously driven χ(2) optical microresonators
Herr, Simon J.; Brasch, Victor; Szabados, Jan; Obrzud, Ewelina; Jia, Yuechen; Lecomte, Steve; Buse, Karsten; Breunig, Ingo; Herr, Tobias (2018-12-01)Optical frequency combs are key to optical precision measurements. While most frequency combs operate in the near-infrared (NIR) regime, many applications require combs at mid-infrared (MIR), visible (VIS), or even ... -
Heteronuclear Soliton Molecules in Optical Microresonators
Weng, Wenle; Bouchand, Romain; Lucas, Erwan; Obrzud, Ewelina; Herr, Tobias; Kippenberg, Tobias J. (2019) -
Heteronuclear soliton molecules in optical microresonators
Weng, Wenle; Bouchand, Romain; Lucas, Erwan; Obrzud, Ewelina; Herr, Tobias; Kippenberg, Tobias J. (2020) -
High repetition rate frequency comb up- and down-conversion in synchronously driven χ(2) microresonators
Szabados, Jan; Brasch, Victor; Herr, Simon J.; Obrzud, Ewelina; Jia, Yuechen; Lecomte, Steve; Buse, Karsten; Breunig, Ingo; Herr, Tobias (2019-03-04)Optical frequency combs are a key technology for optical precision measurements. So far, most frequency combs operate in the near-infrared regime (NIR). Many applications, however, require combs in the ultraviolet (UV), ... -
In-Fibre Fabry-Pérot Microresonator with 100 Million Q-Factor
Obrzud, Ewelina; Lecomte, Steve; Herr, Tobias (2017-05-14)A single-mode, 100 million Q-factor, Kerr-nonlinear Fabry-Perot microresonator with 10 GHz free-spectral range is fabricated. The resonator''s group velocity dispersion, coupling ratio and nonlinearity can be engineered ... -
Noise Filtering in Synchronously-driven Kerr Frequency Combs
Brasch, Victor; Obrzud, Ewelina; Lecomte, Steve; Herr, Tobias (2019) -
Nonlinear filtering of an optical pulse train using dissipative Kerr solitons
Brasch, Victor; Obrzud, Ewelina; Lecomte, Steve; Herr, Tobias (2019-11-20)The capability to store light for extended periods of time enables optical cavities to act as narrowband optical filters, whose linewidth corresponds to the cavity’s inverse energy storage time. Here, we report on ... -
Nonlinear filtering with dissipative Kerr solitons
Brasch, Victor; Obrzud, Ewelina; Lecomte, Steve; Herr, Tobias (2020) -
Nonlinear filtering with dissipative Kerr solitons
Brasch, Victor; Obrzud, Ewelina; Lecomte, Steve; Herr, Tobias (2020) -
Properties of Broadband Soliton Microcombs in Pulse-Driven Integrated Microresonators
Anderson, Miles; Bouchand, Romain; Liu, Junqiu; Obrzud, Ewelina; Herr, Tobias; Kippenberg, Tobias J. (2019)Recently, pulse-driving of nonlinear microresonators, as opposed to continuous-wave driving (CW), has been demonstrated as a powerful method for overcoming the fundamental inefficiency of single-state dissipative Kerr ... -
Pulse-driven Microresonator Solitons
Obrzud, Ewelina; Lecomte, Steve; Herr, Tobias (2018) -
Stability of Lithium Niobate Integrated Photonics in Nonlinear and Metrology Applications
Obrzud, Ewelina; Sattari, Hamed; Voumard, Thibault; Choong, Gregory; Denis, Séverine; Leo, Jacopo; Wildi, Thibault; Dubochet, Olivier; Lecomte, Steve; Herr, Tobias; Ghadimi, Amir; Brasch, Victor (2021-12-07)We demonstrate that lithium niobate integrated photonics allows for reliable nonlinear applications under continuous femtosecond laser irradiation. Over 400 hours, a stable octave-spanning supercontinuum plus second-harmonic ... -
Stability of Lithium Niobate Integrated Photonics in Nonlinear and Metrology Applications
Obrzud, Ewelina; Denis, Séverine; Sattari, Hamed; Voumard, Thibault; Choong, Gregory; Leo, Jacopo; Wildi, Thibault; Dubochet, Olivier; Despont, Michel; Lecomte, Steve; Herr, Tobias; Ghadimi, Amir; Brasch, Victor (2021-12-05)