Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Thorsten Ulm"'
Publikováno v:
Applied Physics B. 99:409-414
We report on the generation of 267 fs long pulses with a peak power of 661 W emitted by an InGaAs diode laser master-oscillator power-amplifier (MOPA) system with an external grating compressor. The oscillator emits strongly chirped picosecond pulses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49ab2603421788a67ad0066baff45bc6
https://doi.org/10.1007/s00340-010-3963-4
https://doi.org/10.1007/s00340-010-3963-4
Publikováno v:
Applied Physics B. 92:481-485
This paper reports the generation of fs light pulses by a passively mode-locked InGaAs master oscillator power amplifier (MOPA) system. The laser system generates chirped pulses with 6.2 ps duration, a center wavelength of 922 nm and 4 GHz repetition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::874923eebdaf2e9eb51b9f1e511394bb
https://doi.org/10.1007/s00340-008-3121-4
https://doi.org/10.1007/s00340-008-3121-4
Autor:
Bernd Sumpf, Thorsten Ulm, Edeltraud Gehrig, Andreas Klehr, Johannes A. L'huillier, Harry Fuchs
Publikováno v:
Optics Communications. 281:2160-2166
The amplification of ps and fs pulses with peak powers of up to 4.5 kW has been investigated in a single quantum well InGaAs tapered amplifier. The pulses with durations of 100 fs or 2 ps were generated by a modelocked titanium–sapphire laser. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdd7407c3ff4aa1fab539823cfaf0f27
https://doi.org/10.1016/j.optcom.2007.11.062
https://doi.org/10.1016/j.optcom.2007.11.062
Publikováno v:
Applied Physics B. 88:393-396
We report on a frequency resolved optical gating (FROG) system which allows the reconstruction of amplitude and phase of picosecond pulses generated by mode-locked diode laser oscillators and amplifiers. The main challenge of developing such a FROG s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::622f3c2454e30e14cc3aaa5c868b007c
https://doi.org/10.1007/s00340-007-2730-7
https://doi.org/10.1007/s00340-007-2730-7
Autor:
Thorsten Ulm, O. Casel, Johannes A. L'huillier, D. Woll, Harry Fuchs, M.A. Tremont, Richard Wallenstein
Publikováno v:
Applied Physics B. 87:425-430
This paper reports on a mode-locked InGaAs master oscillator power amplifier (MOPA) system that generates at 920 nm 14-ps-long pulses with a repetition rate of 4.3 GHz and an average power of 2.7 W. Single-pass frequency doubling in a periodically po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56b497eaba111f37bdaab42328fb0388
https://doi.org/10.1007/s00340-007-2586-x
https://doi.org/10.1007/s00340-007-2586-x
Publikováno v:
Springer Series in Optical Sciences ISBN: 9783319176581
We present a concept for a femtosecond laser based on a passively mode-locked semiconductor diode laser and a tapered amplifier. The absorption in the monolithically integrated quantum well absorber is controlled by a reverse voltage bias. Excellent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efa536dddd91f7fc0c54d8333163f7e8
https://doi.org/10.1007/978-3-319-17659-8_2
https://doi.org/10.1007/978-3-319-17659-8_2
Publikováno v:
SPIE Proceedings.
We compared the performance of DQW and TQW edge-emitters in a passively mode-locked 1GHz MOPA system at 1075 nm wavelength. Passive mode-locking is induced by applying a reverse DC voltage to the absorber section. The average power is increased up to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b742a4fa28dc61bbf7d16444cf81089
https://doi.org/10.1117/12.922901
https://doi.org/10.1117/12.922901
Autor:
G. Erbert, Markus Lührmann, Th. Hoffmann, Andreas Klehr, Thorsten Ulm, Johannes A. L'huillier, R. Knappe, Florian Harth
Publikováno v:
Optics express. 20(7)
We report on the generation and amplification of pulses with pulse widths of 400 – 1000 ps at 1064 nm. For pulse generation an ultra-fast semiconductor modulator is used that modulates a cw-beam of a DFB diode laser. The pulse lengths could be adju
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa5428332e41a7c038aef60ba8c1e19d
https://pubmed.ncbi.nlm.nih.gov/22453379
https://pubmed.ncbi.nlm.nih.gov/22453379
Autor:
Achim Nebel, Götz Erbert, Markus Lührmann, Johannes A. L'huillier, Andreas Klehr, Florian Harth, Thorsten Ulm, Ralf Knappe, Christian Theobald
Publikováno v:
SPIE Proceedings.
We report on a Nd:YVO4 regenerative amplifier (RA), end pumped by 888 nm-diode lasers. The output power was about 46W at repetition rates from 150 to 833kHz with an M2-factor of 1.2. The amplifier was seeded by a gain switched diode laser, generating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baf2569f3de2d34b3d9dc789678f0c01
https://doi.org/10.1117/12.874203
https://doi.org/10.1117/12.874203
Publikováno v:
Conference on Lasers and Electro-Optics 2010.
Collision point and relative intensities of pulses in a passively mode-locked laser were optimized to generate a strong and almost linear chirp. We achieved 267fs pulses with 661W peak power using only quadratic phase compression.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b5bd0d0bae626d8e5b3fc47987448f6
https://doi.org/10.1364/cleo.2010.jtud95
https://doi.org/10.1364/cleo.2010.jtud95