Centre of Expertise in Photonics (CoEP)
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Founded in early 2005, the Centre of Expertise in Photonics (CoEP) is a research initiative within the School of Chemistry & Physics at the University of Adelaide focusing on the design, fabrication and application of soft glass optical fibres.
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Browsing Centre of Expertise in Photonics (CoEP) by Author "Asimakis, S."
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Item Metadata only A lead silicate holey fibre with γ=1860 W⁻¹km⁻¹ at 1550 nm(Optical Society of Americal, 2005) Leong, J.; Petropoulos, P.; Asimakis, S.; Ebendorff-Heidepriem, H.; Moore, R.; Frampton, K.; Finazzi, V.; Feng, X.; Price, J.; Monro, T.; Richardson, D.; OFC/NFOEC (2005 : Anaheim, California, USA); Karl Koch,Item Open Access Advances in microstructured fiber technology(IEEE, 2005) Richardson, D.; Poletti, F.; Leong, J.; Feng, X.; Ebendorff-Heidepriem, H.; Finazzi, V.; Frampton, K.; Asimakis, S.; Moore, R.; Baggett, J.; Hayes, J.; Petrovich, M.; Tse, M.; Amezcua, R.; Price, J.; Broderick, N.; Petropoulos, P.; Monro, T.; IEEE/LEOS workshop on fibres and optical passive components (4th: 2005 : Palermo, Italy); RivaSanseverino, S.; Artiglia, M.We review our recent progress in the area of microstructured fiber design, fabrication and applications with particular emphasis on the control of both the nonlinearity and dispersion.Item Open Access Broadband supercontinuum generation in an extremely nonlinear extruded lead silicate holey fiber using weak fs pulses(IEEE, 2005) Leong, J.; Petropoulos, P.; Price, J.; Ebendorff-Heidepriem, H.; Asimakis, S.; Moore, R.; Frampton, K.; Finazzi, V.; Feng, X.; Monro, T.; Richardson, D.; Pacific Rim Conference on Lasers and Electro-Optics (2005 : Tokyo, Japan)Broadband supercontinuum generation at 1.06 μm spanning > 1000 nm and extending to the visible is observed in a dispersion optimized holey fiber with a record-high nonlinearity (1860 W-1km-1 at 1.55 μm), for launched pulse energies < 100 pJ.Item Open Access Efficient four-wave-mixing at 1.55 microns in a short-length dispersion shifted lead silicate holey fibre(Société de l'Electricité, de l'Electronique et des Technologies de l'Information et de la Communican, 2006) Asimakis, S.; Petropoulos, P.; Poletti, F.; Leong, J.; Ebendorff-Heidepriem, H.; Moore, R.; Frampton, K.; Feng, X.; Loh, W.; Monro, T.; Richardson, D.; European Conference on Optical Communication (32nd : 2006 : Cannes, France)We demonstrate four-wave-mixing in a 2.2m-long dispersion-tailored lead-silicate holey fibre with a conversion efficiency of -6dB and a bandwidth of ~30nm. The potential of dispersion-optimised soft-glass holey fibres for such applications is also discussed.Item Metadata only Extreme nonlinearity and new dispersion properties of soft glass microstructured optical fibers(2005) Ebendorff-Heidepriem, H.; Monro, T.; Petropoulos, P.; Finazzi, V.; Asimakis, S.; Leong, J.; Frampton, K.; Moore, R.; Richardson, D.; The American Ceramic Society. Meeting & Exposition (107th : 2005 : Baltimore, MA.)Item Metadata only Heavy metal oxide glass holey fibers with high nonlinearity(Optical Society of America, 2005) Ebendorff-Heidepriem, H.; Petropoulos, P.; Finazzi, V.; Asimakis, S.; Leong, J.; Koizumi, F.; Frampton, K.; Moore, R.; Richardson, D.; Monro, T.; Conference on Optical Fiber Communication (2005 : Anaheim, California)We report on the development of small-core high-NA lead silicate and bismuth glass holey fibers. We measured high nonlinearity (1100 W-1 km-1 in bismuth holey fiber) and predicted near-zero or anomalous dispersion at 1550 nm. © 2004 Optical Society of America.Item Open Access High-nonlinearity dispersion-shifted lead-silicate holey fibers for efficient 1-µm pumped supercontinuum generation(IEEE-Inst Electrical Electronics Engineers Inc, 2006) Leong, J.; Petropoulos, P.; Price, J.; Ebendorff-Heidepriem, H.; Asimakis, S.; Moore, R.; Frampton, K.; Finazzi, V.; Feng, X.; Monro, T.; Richardson, D.This paper reports on the recent progress in the design and fabrication of high-nonlinearity lead-silicate holey fibers (HFs). First, the fabrication of a fiber designed to offer close to the maximum possible nonlinearity per unit length in this glass type is described. A value of /spl gamma/=1860 W/sup -1//spl middot/km/sup -1/ at a wavelength of 1.55 /spl mu/m is achieved, which is believed to be a record for any fiber at this wavelength. Second, the design and fabrication of a fiber with a slightly reduced nonlinearity but with dispersion-shifted characteristics tailored to enhance broadband supercontinuum (SC) generation when pumped at a wavelength of 1.06 /spl mu/m-a wavelength readily generated using Yb-doped fiber lasers-are described. SC generation spanning more than 1000 nm is observed for modest pulse energies of /spl sim/ 100 pJ using a short length of this fiber. Finally, the results of numerical simulations of the SC process in the proposed fibers are presented, which are in good agreement with the experimental observations and highlight the importance of accurate control of the zero-dispersion wavelength (ZDW) when optimizing such fibers for SC performance.Item Open Access Non-silica highly nonlinear holey fibers for telecommunications applications(University of Southampton. Optoelectronics Research Centre, 2005) Asimakis, S.; Petropoulos, P.; Ebendorff-Heidepriem, H.; Leong, J.; Finazzi, V.; Koizumi, F.; Frampton, K.; Moore, R.; Monro, T.; Richardson, D.; Optical Core Network Technologies (2005 : Aveiro, Portugal)We report on recent development in the fabrication and characterization of small-core lead-silicate and bismuth-oxide glass holey fibers. These fibers exhibit an effective nonlinearity three orders of magnitude higher than standard silica fibers, offering the prospect of compact, nonlinear devices operating at low powers.Item Metadata only Nonlinearity and dispersion control in small core lead silicate holey fibers by structured element stacking(IEEE, 2006) Leong, J.; Asimakis, S.; Poletti, F.; Petropoulos, P.; Feng, X.; Moore, R.; Frampton, K.; Monro, T.; Ebendorff-Heidepriem, H.; Loh, W.; Richardson, D.; Conference on Optical Fiber Communication (2006 : Anaheim, California)We report a new fabrication approach that combines the benefits of extrusion and stacking, which is capable of realising high-nonlinearity lead-silicate glass holey fibers with tailorable dispersion characteristics. We also present optimised fiber designs offering dispersion-shifted and flattened performance at 1.55 /spl mu/m.Item Metadata only Towards zero dispersion highly nonlinear lead silicate glass holey fibres at 1550nm by structured-element-stacking(Institute of Electrical Engineers, 2005) Leong, J.; Asimakis, S.; Poletti, F.; Petropoulos, P.; Feng, X.; Moore, R.; Frampton, K.; Monro, T.; Ebendorff-Heidepriem, H.; Loh, W.; Richardson, D.; European Conference on Optical Communication (31st : 2005 : Glasgow, Scotland)We report the fabrication of lead-silicate holey fibres with a high nonlinearity up to 414 W/sup -1/km/sup -1/ and low dispersion at 1550 nm using a new fabrication technique based on the stacking of extruded structured elements.