Hermann Kahle
Tampere University of Technology
61 Papers
101 Citations
Hermann Kahle is an academic researcher from Tampere University of Technology. The author has contributed to research in topics: Laser & Semiconductor laser theory. The author has an hindex of 11, co-authored 48 publications. Previous affiliations of Hermann Kahle include University of Stuttgart.
Chat about Author
Papers
Semiconductor membrane external-cavity surface-emitting laser (MECSEL)
Hermann Kahle,Cherry May N. Mateo,Uwe Brauch,Philipp Tatar-Mathes,Roman Bek,Michael Jetter,Thomas Graf,Peter Michler +7 more
- 20 Dec 2016
TL;DR: In this article, a diamond heat spreader sandwiched active region design without a monolithically integrated distributed Bragg reflector was proposed to improve the heat dissipation out of the active region and make generally low-heat conductive DBRs obsolete.
84
Enhanced efficiency of AlGaInP disk laser by in-well pumping
Cherry May N. Mateo,Uwe Brauch,Thomas Schwarzbäck,Hermann Kahle,Michael Jetter,M. Abdou Ahmed,Peter Michler,Thomas Graf +7 more
TL;DR: The results demonstrate the potential of optical in-well pumping for the operation of red AlGaInP disk lasers if combined with means for efficient pump-light absorption.
24
Wavelength tunable ultraviolet laser emission via intra-cavity frequency doubling of an AlGaInP vertical external-cavity surface-emitting laser down to 328 nm
TL;DR: In this paper, an optically pumped vertical external-cavity surface-emitting laser in a compact v-shaped cavity configuration for frequency doubling to the ultraviolet (UV) spectral range at ∼330 nm was demonstrated.
23
High optical output power in the UVA range of a frequency-doubled, strain-compensated AlGaInP-VECSEL
TL;DR: In this article, a GaInP/AlGaInP multi-quantum well structure grown using metal-organic vapour-phase epitaxy was used to achieve a maximum continuous-wave optical output power of 260 mW from an optically pumped, frequency-doubled vertical-external-cavity surface-emitting laser.
21
Self-mode-locked AlGaInP-VECSEL
Roman Bek,M. Großmann,Hermann Kahle,Martin Koch,Arash Rahimi-Iman,Michael Jetter,Peter Michler +6 more
TL;DR: In this article, the authors reported the mode-locked operation of an AlGaInP-based semiconductor disk laser without a saturable absorber, achieving an average output power of up to 30 mW at a laser wavelength of 666 nm.
19