Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Joshua Bradford"'
Publikováno v:
Manufacturing Letters. 33:850-861
Autor:
Stefan Gausmann, Benoit Faugas, Joshua Bradford, Mark Goldsmith, Adrian Carter, Kanishka Tankala, Clemence Jollivet
Publikováno v:
Fiber Lasers XX: Technology and Systems.
Autor:
Joshua Bradford, Mike Conroy, Mark Goldsmith, Adrian Carter, Kanishka Tankala, Clémence Jollivet
Publikováno v:
Fiber Lasers XIX: Technology and Systems.
Publikováno v:
Chest. 162:A1174
Publikováno v:
Fiber Lasers XVIII: Technology and Systems.
Autor:
Joshua Bradford
Publikováno v:
Fiber Lasers XVII: Technology and Systems.
New large mode area Ytterbium-doped fiber (LMA-YDF) designs for 400µm clad laser oscillators are investigated. Designs are optimized to simultaneously overcome limitations of Stimulated Raman Scattering (SRS) and Thermal Mode Instability (TMI) withi
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 24:1-8
Thulium-doped fiber lasers (TDFLs) have had the second highest growth in average output power next to ytterbium-doped fiber lasers. This has been enabled by access to high power, high brightness ∼790-nm pump diodes in conjunction with the cross-rel
Autor:
Ali Abdulfattah, Lawrence Shah, Joshua Bradford, Martin Richardson, Alex Sincore, Nathan Bodnar
Publikováno v:
Journal of Lightwave Technology. 35:4000-4003
Stimulated Brillouin scattering (SBS) is the first nonlinear effect that limits power scaling of narrow linewidth fiber lasers. Nonlinearities typically have a reduced impact when operating at longer wavelengths. However, the SBS gain is considered w
Autor:
Joshua Bradford, Martin Richardson, Lawrence Shah, Alex Sincore, Nathan Bodnar, Ali Abdulfattah, Justin Cook
Publikováno v:
Laser Technology for Defense and Security XIV.
We report on a 2 μm master oscillator power amplifier (MOPA) fiber laser system capable of producing 700 μJ pulse energies from a single 1.5 m long amplifier. The oscillator is a single-mode, thulium-doped fiber that is Q-switched by an acousto-opt
Autor:
Ali Abdulfattah, Martin Richardson, Jose Enrique Antonio-Lopez, Lawrence Shah, Joshua Bradford, Justin Cook, Rodrigo Amezcua Correa, Stefan Gausmann, Axel Schülzgen, Patrick Roumayah, Dong Jin Shin, Alex Sincore
Publikováno v:
Laser Technology for Defense and Security XIV.
To advance the science of high power fiber lasers, in-house drawn specialty optical fibers are investigated. Ongoing research involves the fabrication and testing of Yb- and Tm-doped fibers at 1μm and 2μm. Using specialized fiber and pump mixing ge