Výsledky vyhledávání - "Aleksey, Tyazhev"

Tm:CALGO lasers at 2.32 µm: cascade lasing and upconversion pumping

Autor: Hippolyte Dupont, Pavel Loiko, Aleksey Tyazhev, Luidgi Giordano, Zhongben Pan, Hongwei Chu, Dechun Li, Bruno Viana, Ammar Hideur, Lauren Guillemot, Alain Braud, Patrice Camy, Patrick Georges, Frédéric Druon

Publikováno v: Optics Express. 31:18751

We report on the first laser operation of a disordered Tm:CaGdAlO4 crystal on the 3H4 → 3H5 transition. Under direct pumping at 0.79 µm, it generates 264 mW at 2.32 µm with a slope efficiency of 13.9% and 22.5% vs. incident and absorbed pump powe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1a42ae4360ec25fa5e56dacb3d86af5
https://doi.org/10.1364/oe.487590

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Excited-state absorption and upconversion pumping of Tm3+-doped potassium lutetium double tungstate

Autor: Aleksey Tyazhev, Pavel Loiko, Lauren Guillemot, Alexandre Kouta, Rosa Maria Solé, Xavier Mateos, Magdalena Aguiló, Francesc Díaz, Hippolyte Dupont, Patrick Georges, Frédéric Druon, Alain Braud, Patrice Camy, Ammar Hideur

Publikováno v: Optics Express. 31:14808

We report on a bulk thulium laser operating on the 3H4 → 3H5 transition with pure upconversion pumping at 1064 nm by an ytterbium fiber laser (addressing the 3F4 → 3F2,3 excited-state absorption (ESA) transition of Tm3+ ions) generating 433 mW at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dbc94e1b10dd5ff27c82e1872520c78f
https://doi.org/10.1364/oe.487130

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Excited-State Absorption and Upconversion Pumping of Monoclinic Tm:KLu(WO4)2 Crystals

Publikováno v: Optica Advanced Photonics Congress 2022.

Excited-state absorption of Tm3+ ions (3F4→3F2,3 and 3H4) in the KLu(WO4)2 crystal is studied. Mid-infrared laser operation (3H4→3H5) is achieved with this crystal under upconversion pumping at 1.06 μm yielding 433 mW at 2291 nm. © 2022 The Aut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3774865de15e1464833f38a54fadf91
https://doi.org/10.1364/assl.2022.ath1a.1

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Akademický článek

Low Noise High-Energy Dissipative Soliton Erbium Fiber Laser for Fiber Optical Parametric Oscillator Pumping

Autor: Mincheng Tang, Rezki Becheker, Pierre-Henry Hanzard, Aleksey Tyazhev, Jean-Louis Oudar, Arnaud Mussot, Alexandre Kudlinski, Thomas Godin, Ammar Hideur

Publikováno v: Applied Sciences, Vol 8, Iss 11, p 2161 (2018)

We report on a mode-locked erbium-doped fiber laser delivering highly-chirped pulses with several tens of nanojoules of energy around 1560 nm and its exploitation to efficiently pump a fiber optical parametric oscillator (FOPO), thus enabling picosec

Externí odkaz: https://doaj.org/article/f0fd3d4243224c88b3f4aa06fbc73044

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Watt-level efficient 2.3 µm thulium fluoride fiber laser

Autor: Florent Starecki, Franck Joulain, Thomas Godin, Pavel Loiko, Patrice Camy, Alain Braud, Solenn Cozic, Aleksey Tyazhev, Ammar Hideur, Mincheng Tang, Lauren Guillemot

Publikováno v: Optics Letters
Optics Letters, Optical Society of America-OSA Publishing, 2020, 45 (20), pp.5788. ⟨10.1364/OL.403450⟩

We report on an efficient mid-infrared thulium (Tm) fiber laser operating on the 3 H 4 → 3 H 5 transition and featuring an upconversion pumping scheme. This laser comprises a heavily T m 3 + -doped (2.50 mol. %) zirconium fluoride glass fiber pumpe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79b273b2dcfe04171b1a7079cb16e104
https://hal.archives-ouvertes.fr/hal-02966681

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Widely tunable in-band-pumped Tm:CaF 2 laser

Autor: Pavel Loiko, Hervé Gilles, Mathieu Laroche, Jean-Louis Doualan, Ammar Hideur, Patrice Camy, Aleksey Tyazhev, Romain Thouroude

Publikováno v: Optics Letters
Optics Letters, Optical Society of America-OSA Publishing, 2020, 45 (16), pp.4511. ⟨10.1364/OL.399670⟩
Optics Letters, 2020, 45 (16), pp.4511. ⟨10.1364/OL.399670⟩

This Letter presents the efficient laser operation of a T m : C a F 2 crystal in-band pumped at 1610 nm by an Er-Yb-codoped fiber laser system. A laser slope efficiency of 55% (versus incident pump power) was achieved in a continuous-wave regime, wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2530405e5b41d517df12c1067a460c7
https://hal.archives-ouvertes.fr/hal-03060523

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Passively mode-locked diode-pumped Tm,Ho:LiYF4 laser

Autor: Jean-Louis Doualan, Aleksey Tyazhev, Thomas Godin, Marlène Paris, Pavel Loiko, Patrice Camy, Lauren Guillemot, Alain Braud, Ammar Hideur, Rémi Soulard

Publikováno v: Laser Physics Letters
Laser Physics Letters, 2020, 17 (4), pp.045801. ⟨10.1088/1612-202X/ab6b25⟩
Laser Physics Letters, IOP Publishing, 2020, 17 (4), pp.045801. ⟨10.1088/1612-202X/ab6b25⟩

International audience; We report on the first demonstration of a diode-pumped passively mode-locked Tm,Ho:LiYF4 laser. Stable continuous-wave mode-locking is achieved by employing a single-layer graphene as a saturable absorber (SA). For a reflectio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::129c4e344f93abb6ddaab68b62fc51a1
https://hal.science/hal-02558503

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