Zobrazeno 1 - 10
of 104
pro vyhledávání: '"K. Tankala"'
Publikováno v:
CLEO: 2014.
We report on the SBS threshold variations due to the coiling-induced birefringence in a non-polarization-maintaining fiber high power amplifier. We demonstrate that a control of the output polarization can permit higher SBS threshold operation.
Publikováno v:
CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference.
Work is advancing in the area of high efficiency, Tm-doped fibers. In this talk we will review the recent work in power scaling both CW and pulsed systems at 2um. Applications for the technology will also be covered.
Publikováno v:
Journal of Materials Science. 26:6293-6299
The mechanical behaviour of glass fibre-reinforced epoxy composites with introduced layers of materials and with fibre coating is studied. The role of aerosil powder as a filler material is investigated, and the fracture mode is analysed by scanning
Autor:
W. Torruellas, K. Tankala, G. Frith, Bryce Samson, K. Farley, J. Farroni, Adrian Carter, Timothy S. McComb
Publikováno v:
SPIE Proceedings.
nm-pumped Tm-doped fibre lasers provide a number of distinct benefits for integration into next generation DIRCM systems. Incorporation of Tm-doped fibre technology into mid-IR laser systems has been demonstrated in two main architectures to date; in
Publikováno v:
OECC/ACOFT 2008 - Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference on Optical Fibre Technology.
Achieving efficient operation from 790 nm-pumped Tm-doped fibres at wavelengths
Publikováno v:
2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference.
The paper reports a robust fibre Bragg grating (FBG) tuned Tm-doped fiber laser pumped with 793 nm delivering 110 W CW at 2 μm with 55% slope efficiency. The laser operated in single transverse mode at 2050 nm (FWHM ˜2 nm) determined by the reflect
Publikováno v:
Proceedings of SPIE.
Autor:
E. W. Van Stryland, K. Tankala, Scott Webster, B. McIntosh, David J. Hagan, A. Villanger, J. Farroni, William E. Torruellas, M. J. Soileau, F.C. McDonald
Publikováno v:
SPIE Proceedings.
N-on-1 LIDT measurements were performed on ytterbium doped preforms used to make high peak power fiber amplifiers. Damage measurements were complicated by large index of refraction changes across the preforms. These difficulties were overcome by moni
Autor:
Jayanta K. Sahu, E. Schneider, J. Koroshetz, J. Unternahrer, A. Carter, P. Jander, D. Smith, W.A. Clarkson, J. Farroni, Johan Nilsson, K. Tankala, I.T. McKinnie, G. Duchak
Publikováno v:
2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720).
We report a fiber-based transmitter suitable for high-power, eye-safe free space optical communications at 1.5 /spl mu/m. Greater than 40 W of output power has been achieved with 10 Gb/s on-off keyed data patterns.
Autor:
F. Doerfel, K. Tankala, J. Farroni, B. Ehlers, A. Carter, Che-Hung Liu, A. Galvanauskas, S. Heinemann
Publikováno v:
Advanced Solid-State Photonics (TOPS).
We demonstrate 810-W fundamental mode beam from Yb-doped fiber laser operating at 1092 nm. Single-transverse-mode operation is achieved through distributed mode filtering in a coiled 20-μm diameter and 0.06 NA core fiber.