Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Keiron Boyd"'
Autor:
Neil Carmody, Miftar Ganija, Keiron Boyd, Alexander Hemming, P. J. Veitch, Nikita Simakov, Jesper Munch
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
High energy laser sources operating around 2 µm are of interest in a variety of applications: LIDAR, material processing, medicine and pump sources for optical parametric oscillators (OPOs) for high-energy mid-IR nonlinear conversion. The OPO approa
Autor:
John Haub, Neil Carmody, Jesper Munch, Alexander Hemming, P. J. Veitch, Keiron Boyd, Nikita Simakov, M. R. Ganija
Publikováno v:
Applied Physics B. 126
The authors report on the performance and scalability of a Q-switched, cryogenically cooled Ho:YAG laser. The Ho:YAG slab was resonantly pumped using a continuous wave thulium fibre laser, and the output energy from the oscillator was extracted using
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We have investigated the power scaling of a Ho:YAG laser at room temperature. The laser is in-band pumped by two 1907 nm Tm-fiber lasers. A near confocal resonator design allows for 142 W power extraction.
Autor:
Nikita Simakov, Alexander Hemming, P. J. Veitch, Neil Carmody, John Haub, Keiron Boyd, David M. McAfee, Miftar Ganija, Jesper Munch
Publikováno v:
AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019.
Autor:
Pete Smith, Peter C. Shardlow, Christopher Holmes, Keiron Boyd, Jae M. O. Daniel, Nikita Simakov, Paul C. Gow, James C. Gates, Alan C. Gray, Alexander Jantzen
Publikováno v:
Electronics Letters. 54:945-947
Consolidation of flame hydrolysis deposited silica soot with a 9.3 μm CO2 laser has been demonstrated. A range of laser parameters were investigated and the surface roughness of the resulting silica layers were characterised with a stylus profiler a
Autor:
Leonardo Corena, Neil Carmody, Alexander Hemming, Alan Davidson, Robert Swain, John Haub, Simon J. Rees, Nikita Simakov, Dmitrii Stepanov, Keiron Boyd, Michael R. Oermann
Publikováno v:
Optics express. 26(6)
We present the coherent beam combination of four 2100 nm holmium amplifiers with their phase controlled through acousto-optic modulators driven by the RF output of direct digital synthesizer chips. Phase alignment was achieved through the use of a fi
Autor:
John Haub, Alan Davidson, Alexander Hemming, Michael R. Oermann, Neil Carmody, Robert Swain, Eric Mies, W. Andrew Clarkson, Jae M. O. Daniel, Keiron Boyd, Adrian Carter, Nikita Simakov, Kevin Farley
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Holmium fibre lasers are required for remote sensing, LIDAR and some medical applications [1]. In addition, pulsed Holmium fibre lasers also offer an attractive power scalable alternative to Ho:YAG and Ho:YLF lasers for pumping mid-infrared optical p
Autor:
Jae M. O. Daniel, Nikita Simakov, W. Andrew Clarkson, John Haub, Simon J. Rees, Alexander Hemming, Keiron Boyd
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Custom spatial laser profiles such as annular beams have advantages over Gaussian beam profiles for applications including materials processing [1-3], fibre optic communications [4], reduction of nonlinear effects in fibre lasers [5] and optical trap
Autor:
Nikita Simakov, John Haub, Keiron Boyd, Michael R. Oermann, Dmitrii Stepanov, Leonardo Corena, Simon J. Rees, Neil Carmody, Alexander Hemming, Alan Davidson, Robert Swain
Publikováno v:
Laser Congress 2017 (ASSL, LAC).
We present the coherent beam combination of four 2100 nm holmium amplifiers using direct digital synthesizer chip controlled acousto-optic modulators and a stochastic parallel gradient descent algorithm.
Autor:
Jae M. O. Daniel, Simon J. Rees, Eric Mies, Alexander Hemming, Robert Swain, John Haub, Nikita Simakov, Keiron Boyd, W.A. Clarkson
Publikováno v:
SPIE Proceedings.
CO2 laser processing facilitates contamination free, rapid, precise and reproducible fabrication of devices for high power fibre laser applications. We present recent progress in fibre end-face preparation and cladding surface modification techniques