197,905 research outputs found

    Nonlinear fibre design for broadband phase sensitive amplification

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    We present a soft glass fibre design for high nonlinearity and broadband, low dis-persion and simulate its performance as a phase sensitive amplifier for high bit rate signals at 1 T b/s. We use a degenerate, two pump four wave mixing scheme and show that with a fibre length of less than 1 m we are able to achieve 14 dB discrimination between the amplified and deamplified signal quadratures with 1 W pump power.H. Tilanka Munasinghe, Shahraam Afshar V., David J. Richardson, and Tanya M. Monrohttp://www.iqec-cleopr2011.com/http://www.opticsinfobase.org/abstract.cfm?uri=CLEOPR-2011-C70

    Gender ethnicity and empowerment in later life

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    Studies of later life are increasingly emphasising its positive aspects as a time which is not necessarily linked to decline and dependency. Gender is also accepted as an important variable in the experience of advancing years. However, the significance of ethnicity is less often emphasised. Based on preliminary analyses from research with older women from a variety of ethnic backgrounds, this article focuses on what they identify as important in terms of living their later years. The article emphasises migration and cultural differences in perceptions of ageing. It concludes with a discussion of the meanings of empowerment

    Investigation of a fibre-coupled beryllium oxide (BeO) ceramic luminescence dosimetry system

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    Abstract not availableAlexandre M. Caraça Santos, Mohammad Mohammadi, Shahraam Afshar V

    Energy dependency of a water-equivalent fibre-coupled beryllium oxide (BeO) dosimetry system

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    Abstract not availableAlexandre M. Caraça Santos, Mohammad Mohammadi, Shahraam Afshar V

    Cross mode and polarization mixing in third and one-third harmonic generation in multi-mode waveguides

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    Published February 4, 2015Abstract not availableDaniel Hartley, M. A. Lohe, T. M. Monro, and Shahraam Afshar V

    Nonlinear self-flipping and optical switching

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    Wen Qi Zhang, M. A. Lohe, Tanya M. Monro, and Shahraam Afshar V.http://www.iqec-cleopr2011.com/http://www.opticsinfobase.org/abstract.cfm?URI=CLEOPR-2011-C37

    Steady-state and travelling wave solutions with nonlinear polarization attraction

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    Abstract not availableM.A. Lohe and Shahraam Afshar V

    Self-formed dipolefibre cavities

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    Afshar V., S.; Henderson, M.; Greentree, A. D.; Gibson, B.; Monro, T. M.http://www.aomevents.com/ACMMICON

    Suspended core fiber for propagating vortex LP11 modes

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    Poster presentation JTu4A.74Abstract not availableHong Ji, Yinlan Ruan, Shahraam Afshar V. and Tanya M. Monr

    Nonlinear self-polarization flipping in silicon sub-wavelength waveguides: distortion, loss, dispersion, and noise effects

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    Abstract not availableWen Qi Zhang, M. A. Lohe, Tanya M. Monro, Paolo Bettotti, Lorenzo Pavesi and Shahraam Afshar
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