Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Terence John Shepherd"'
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 15:328-336
In this paper, the authors discuss the modal and lasing properties of multicore photonic crystal fiber lasers in the context of high power/energy production from fiber cores with very large mode area. Supermode selection methods like Talbot imaging o
Publikováno v:
Conference on Lasers and Electro-Optics 2010.
Multiple-core fibers offer the possibility of creating fiber lasers with enlarged effective core diameter, while simultaneously controlling mode shape and quality. A review is presented of the basic theory used for design, and examples presented of s
Publikováno v:
SPIE Proceedings.
Demanding real-time data processing applications are driving the need for high-throughput programmable logic. Improvements to computing speed from reduction of processor feature sizes are predicted, but these are expected to be hampered within the ne
Publikováno v:
Fiber Lasers III: Technology, Systems, and Applications.
In this paper, we show that it is possible to arrange for an 18-core photonic crystal fibre (PCF) laser to operate in the fundamental in-phase supermode. The mode divergence is as small as 12.5 mrad. The equivalent mode field diameter is about 52 μm
Autor:
Charlotte R. Bennett, David M. Taylor, A. Petersson, Terence John Shepherd, Jes Broeng, H.R. Simonsen, Laurent Michaille
Publikováno v:
Optics letters. 30(13)
We report on the laser properties of multicore photonic crystal fiber lasers. A stable phase locking of six- and seven-core structures through evanescent coupling is observed. Effective supermode selection is obtained by using both diffraction losses
Publikováno v:
SPIE Proceedings.
Laser damage thresholds of 10 and 20 micron-core diameter solid-core photonic crystal fibres (PCF) and hollow-core photonic band gap (PBG) fibres have been measured. The studies were carried out using a Nd:Yag laser (30nsec pulses at 10Hz), which is
Autor:
Theis Peter Hansen, Laurent Michaille, Charlotte R. Bennett, Christian Jacobsen, David M. Taylor, Terence John Shepherd
Publikováno v:
Integrated Optical Devices, Nanostructures, and Displays.
Laser damage thresholds of 8 μm- and 22 μm-core diameter solid-core photonic crystal fibres (PCF) and hollow-core photonic band gap (PBG) fibres have been measured. The studies were carried out using a 1.06 μm Nd:YAG laser (30 nsec pulses at 10 Hz
Publikováno v:
SPIE Proceedings.
We have analysed different 1D and 2D arrays of evanescently coupled cores within a fibre laser structure. The supermodes (phase-locked modes) have been calculated using coupled mode theory. We show that without a Talbot mirror, the out-of-phase super
Autor:
Laurent Michaille, David M. Taylor, Terence John Shepherd, Benjamin G. Ward, Charlotte R. Bennett
Publikováno v:
Optics Letters. 33:71
We model and characterize the behavior of a Q-switched fiber laser. The fiber is a doped multicore photonic crystal fiber having six cores in a ring-type geometry. The fiber laser is Q-switched using an intracavity acousto-optic modulator. Using a mo
Autor:
Laurent Michaille, M.D. Nielsen, Terence John Shepherd, David M. Taylor, Charlotte R. Bennett, H.R. Simonsen
Publikováno v:
Electronics Letters. 42:331
A novel microstructured fibre has been created for use in an optical interconnection system. The fibre has low crosstalk with a high density of cores corresponding to 1150 channels/mm/sup 2/. A repeating pseudorandom binary sequence has been used to