Team | Advanced Coherent Sources | Tampere Universities

Group Leader

Regina Gumenyuk

Senior Research Fellow
Faculty of Engineering and Natural Sciences
Tampere University
+358505747229
regina.gumenyuk@tuni.fi

https://orcid.org/0000-0002-0679-9189

More information

Research topics

Laser physics, high power lasers, optical fiber, soliton dynamics

Postdoctoral research fellows

Uttam Samanta

Postdoctoral Research Fellow
Faculty of Engineering and Natural Sciences
Tampere University
+358504782731
uttam.samanta@tuni.fi

PhD students

Hossein Fathi

Doctoral Researcher
Faculty of Engineering and Natural Sciences
Tampere University
+358504142887
hossein.fathi@tuni.fi

Lev Leybov

Doctoral Researcher
Faculty of Engineering and Natural Sciences
Tampere University
+358509112104
lev.leybov@tuni.fi

Meron Tesfa

Doctoral Researcher
Faculty of Engineering and Natural Sciences
Tampere University
meron.tesfa@tuni.fi

Related staff

Mikko Närhi

Staff Scientist
Faculty of Engineering and Natural Sciences
Tampere University
+358504493317
mikko.narhi@tuni.fi

https://orcid.org/0000-0002-5375-5154

More information

About me

I work as a Staff scientist in the Photonics laboratories in the Faculty of Engineering and Natural sciences. My core expertise is in fiber optical technologies and ultrashort pulse generation, modeling and measurement. I am also involved in Research Hub planning and Finnlight research infrastructure upkeep.

Responsibilities

Research in photonics technologies
Research Hub planning for Photonics laboratories
Finnlight upkeep (www.finnlight.fi)

Field of expertise

Fiberoptics, fiber amplifiers & lasers, fiber splicing
Ultrashort pulsed lasers measurement and modeling, e.g. FROG & autocorrelation
Supercontinuum and optical coherence
Coherent combining and high power lasers

Research unit

Photonics, Physics unit

Latest publications

Unveiling the advances and challenges in the development of Er³⁺-doped tellurite fiber with embedded Ag nanoparticles

Kraskowski, I., Nasser, K., Korri, J., Närhi, M., Gumenyuk, R., Othmani, A., Boussard-Plédel, C., Troles, J. & Petit, L., 15 tammik. 2025, (E-pub ahead of print) julkaisussa: JOURNAL OF THE AMERICAN CERAMIC SOCIETY. 11 Sivumäärä, e20385.

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Coherent beam combining of optical vortices

Fathi, H., Närhi, M., Barros, R. & Gumenyuk, R., 15 heinäk. 2024, julkaisussa: Optics Letters. 49, 14, s. 3882-3885 4 Sivumäärä

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Design of nonlinear pulse shaper for flexible repetition rate ultrashort pulse generation

Närhi, M., Ranne, K. & Gumenyuk, R., 31 lokak. 2024, EPJ Web of Conferences. EDP Sciences, Vuosikerta 309. 07006. (EPJ Web of Conferences).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Power scaling of optical vortices by the filled aperture coherent beam combining technique

Fathi, H., Närhi, M. & Gumenyuk, R., 2024, Solid State Lasers XXXIII: Technology and Devices. Clarkson, W. A. & Shori, R. K. (toim.). SPIE, Vuosikerta 12864. 5 Sivumäärä 128640C. (Proceedings of SPIE - The International Society for Optical Engineering; Vuosikerta 12864).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Reference-free dual-comb spectroscopy with inbuilt coherence

Roiz, M., Larnimaa, S., Uotila, T., Närhi, M. & Vainio, M., 30 huhtik. 2024, julkaisussa: Optics Letters. 49, 9, s. 2473-2476 4 Sivumäärä

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Addition of Ag2O in Er3+doped oxyfluorophosphate glass to allow the drawing of optical fibers

Shestopalova, I., Korri, J., Lemiere, A., Närhi, M., Gumenyuk, R., Boussard-Plédel, C., Troles, J. & Petit, L., 15 jouluk. 2023, julkaisussa: Ceramics International. 49, 24, s. 41238-41247 10 Sivumäärä

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Amplifier similariton generation from a Yb-doped all-normal-dispersion fiber laser employing a hybrid-mode-locking technique

Liu, X., Närhi, M., Korobko, D. & Gumenyuk, R., 2022, Fiber Lasers XIX: Technology and Systems. Jauregui-Misas, C. & Supradeepa, V. R. (toim.). SPIE, Vuosikerta 11981. 1198113. (Proceedings of SPIE - The International Society for Optical Engineering; Vuosikerta 11981).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Amplifier similariton fiber laser with a hybrid-mode-locking technique

Liu, X., Närhi, M., Korobko, D. & Gumenyuk, R., lokak. 2021, julkaisussa: Optics Express. 29, 22, s. 34977-34985 9 Sivumäärä

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Design guidelines for ultrashort pulse generation by a Mamyshev regenerator

Närhi, M., Fedotov, A., Aksenova, K., Fiebrandt, J., Schönau, T., Gerecke, M. & Gumenyuk, R., 10 toukok. 2021, julkaisussa: Optics Express. 29, 10, s. 15699-15710 12 Sivumäärä

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

Optimization of Mamyshev regenerator for ultrafast pulse generation

Närhi, M., Fedotov, A., Aksenova, K. & Gumenyuk, R., 2021, Fiber Lasers XVIII: Technology and Systems. Zervas, M. N. & Jauregui-Misas, C. (toim.). SPIE, 6 Sivumäärä 1166518. (Proceedings of SPIE - The International Society for Optical Engineering; Vuosikerta 11665).

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Zahra Eslami

Postdoctoral Research Fellow
Faculty of Engineering and Natural Sciences
Tampere University
+358451490333
zahra.eslami@tuni.fi

More information

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Group Leader

Regina Gumenyuk

Postdoctoral research fellows

Uttam Samanta

PhD students

Hossein Fathi

Lev Leybov

Meron Tesfa

Related staff

Mikko Närhi

Zahra Eslami

Alumni