Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Thomas, Calmano"'
Publikováno v:
Optica Advanced Photonics Congress 2022.
Controllable graphene Q-switching in an Yb:YAG fs-laser-written beam-splitter-type waveguide laser is demonstrated by tunable beam-splitting ratio and varying pump power. Desired channels are regulated to generate Q-switched pulses separately or simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13e148f9522a662028e879591d06de0e
https://doi.org/10.1364/assl.2022.jtu6a.16
https://doi.org/10.1364/assl.2022.jtu6a.16
Publikováno v:
Laser & Photonics Reviews. 16:2270017
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfc1257cd88c0ddbeb0ab70b5521cd50
https://doi.org/10.1002/lpor.202270017
https://doi.org/10.1002/lpor.202270017
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We report on evanescent-field Q-switched operation of fs-laser-written Yb:YAG surface channel waveguide lasers employing single-walled carbon nanotubes in single- and double-pass pumping geometries.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f45192d798d3bfe588bba738db84966c
https://doi.org/10.1364/cleopr.2020.c7a_3
https://doi.org/10.1364/cleopr.2020.c7a_3
Autor:
Thomas Calmano, Christian Kränkel, Günter Huber, Ernst Heumann, Sebastian Muller, Francesca Moglia, Fabian Reichert, Philip Werner Metz
Publikováno v:
Optical Materials. 42:167-173
We report on detailed spectroscopic investigations and efficient visible upconversion laser operation of Er3+:LiLuF4. This material allows for efficient resonant excited-state-absorption (ESA) pumping at 974 nm. Under spectroscopic conditions without
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a903c5dc758f85a8de4c80684ada8241
https://doi.org/10.1016/j.optmat.2015.01.004
https://doi.org/10.1016/j.optmat.2015.01.004
Publikováno v:
Scopus-Elsevier
We demonstrated GHz modelocking of femtosecond-laser inscribed Yb:YAG channel waveguide lasers using SESAM and single-walled carbon nanotube saturable absorber. Sub-2-ps pulses at multi-GHz repetition rates are generated from a dispersion-managed com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de89b180dd2fb0d0b361f842eba62239
https://doi.org/10.1364/cleopr.2018.w4a.1
https://doi.org/10.1364/cleopr.2018.w4a.1
Autor:
Thomas Calmano, Sebastian Muller
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 21:401-413
This paper summarizes our recent results on crystalline waveguides and waveguide lasers fabricated by the femtosecond-laser writing technique. Highly efficient waveguide lasers emitting in the near infrared spectral range based on ytterbium and neody
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a109a960d6963f992a994e2faf99a002
https://doi.org/10.1109/jstqe.2014.2350022
https://doi.org/10.1109/jstqe.2014.2350022
Autor:
Valentin J. Wittwer, Dominik Waldburger, Christian Kränkel, Nayara Jornod, Ursula Keller, Thomas Südmeyer, Thomas Calmano
Publikováno v:
Optics express. 25(14)
We present the amplification of a mode-locked vertical external-cavity surface-emitting laser (VECSEL) using an Yb:YAG crystalline waveguide as gain medium. The VECSEL seed laser operates at a center wavelength of 1030 nm and generates 300-fs pulses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47b525d3f044812f21883623bf185fa7
https://pubmed.ncbi.nlm.nih.gov/28789156
https://pubmed.ncbi.nlm.nih.gov/28789156
Autor:
Thomas Calmano
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
In this paper the recent advances in waveguide lasers fabricated by ultrafast laser inscription (ULI) are reported with the focus on Yb:YAG waveguide based lasers in two different operation regimes. Watt level output powers in single longitudinal mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::541a1ad0d3bb655b90a40a8b919511e1
https://doi.org/10.1109/cleoe-eqec.2017.8086973
https://doi.org/10.1109/cleoe-eqec.2017.8086973
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Compact pulsed laser sources are of interest for diverse application areas. Due to their broad gain bandwidth, high Stokes efficiency and low thermal load near the 1 μm spectral region, ytterbium doped laser materials are promising for such devices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c8a9191c74111f568c229ee4a948b95
https://doi.org/10.1109/cleoe-eqec.2017.8086976
https://doi.org/10.1109/cleoe-eqec.2017.8086976
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
We present a detailed study on selective chemical etching of fs-laser modified single crystalline Y 3 Al 5 O 12 (YAG) toward the fabrication of microchannels for micro- and optofluidic as well as photonic applications. The precise knowledge of parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9a2e286fc7a87002356bd2b8631b227
https://doi.org/10.1109/cleoe-eqec.2017.8087278
https://doi.org/10.1109/cleoe-eqec.2017.8087278